Data Sheet

TEF6901A
Integrated car radio
Rev. 03 — 20 March 2008
Product data sheet
1. General description
The TEF6901A is a single-chip car radio integrated circuit with FM/AM tuner, stereo
decoder, weak signal processing and audio processing. Radio Data System (RDS)/Radio
Broadcast Data System (RBDS) demodulator for radio data reception is included.
FM tuner with double conversion to IF1 = 10.7 MHz and IF2 = 450 kHz with integrated
image rejection for both IF1 and IF2; integrated channel filter with variable bandwidth
control; capable of US FM, Europe FM, Japan FM and Eastern Europe FM. AM tuner with
double conversion to IF1 = 10.7 MHz and IF2 = 450 kHz; capable of Long Wave (LW),
Medium Wave (MW) and full range Short Wave (SW) (11 m to 120 m bands).
Multiplex (MPX) stereo decoder, ignition noise blanker and extensive weak signal
processing.
Audio processing with flexible source selection, volume, balance, fader, input gain control
and inaudible tuning mute. Integrated audio filters for bass and treble and loudness control
function.
The device can be controlled via the fast-mode I2C-bus (400 kHz) and includes
autonomous tuning functions for easy control without microcontroller timing. No manual
alignments are required.
2. Features
n
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FM Radio Frequency (RF) front-end with large dynamic range
Integrated FM channel filter with controlled bandwidth
Fully integrated FM demodulator
Fully integrated stereo decoder with high immunity for birdy noise
FM noise blanker with adaptive detection at MPX and level
Signal quality detection: level, AM wideband, frequency deviation, ultrasonic
noise/adjacent channel
FM weak signal processing: stereo blend, high cut control and soft mute
AM RF Automatic Gain Control (AGC) circuit for external cascode AGC and Positive
Intrinsic Negative (PIN) diode AGC
Dual AM noise blanking system
AM weak signal processing: high cut control and soft mute
Low phase noise local oscillator
In-lock detection for optimized adaptive Phase-Locked Loop (PLL) tuning speed
Crystal oscillator reference with low harmonics
Inaudible soft slope tuning mute for AM and FM
Sequential state machine supporting each tuning action
TEF6901A
NXP Semiconductors
Integrated car radio
n
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n
n
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n
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Integrated RDS/RBDS radio data demodulator
Flexible audio input source selection
Integrated audio processing and tone filtering
Treble, bass and loudness tone control
Volume, balance, fader and input gain control
Audio controls with Audio Step Interpolation (ASI) for pop-free function
Compact Disc (CD) dynamics compression
Volume Unit (VU)-meter audio level read-out
3. Quick reference data
Table 1.
Symbol
Quick reference data
Parameter
Conditions
Min
Typ
Max
Unit
8
8.5
9
V
-
102
-
mA
-
89
-
mA
LW
144
-
288
kHz
MW
522
-
1710
kHz
SW
2.3
-
26.1
MHz
fRF = 990 kHz; m = 0.3;
fmod = 1 kHz; BAF = 2.15 kHz;
(S+N)/N = 26 dB; dummy aerial
15 pF/60 pF
-
50
-
µV
54
58
-
dB
Supply voltage
VCC
analog supply voltage on pins VCC,
VCCPLL, VCCVCO, VCCRF,
AMMIX2OUT1, AMMIX2OUT2,
MIX1OUT1 and MIX1OUT2
Supply current in FM mode
ICC
total supply current inclusive IV60
Supply current in AM mode
ICC
total supply current inclusive IV60
AM overall system parameters
ftune
AM tuning frequency
Vsens
sensitivity voltage
S/N
ultimate signal-to-noise ratio
THD
total harmonic distortion
200 µV < VRF < 1 V; m = 0.8;
fAF = 400 Hz
-
0.4
1
%
IP3
3rd-order intercept point
∆f = 40 kHz
-
130
-
dBµV
65
-
108
MHz
-
2
-
µV
-
60
-
dB
FM overall system parameters
ftune
FM tuning frequency
Vsens
sensitivity voltage (RF input voltage
at (S+N)/N = 26 dB)
(S+N)/N
maximum signal plus noise-to-noise Vi = 3 mV; ∆f = 22.5 kHz;
ratio of MPXAM output voltage
fmod = 1 kHz; DEMP = 1;
B = 300 Hz to 22 kHz; measured
with 75 Ω dummy antenna and test
circuit
THD
total harmonic distortion
∆f = 75 kHz
-
0.5
1
%
IP3
3rd-order intercept point
∆f = 400 kHz
-
120
-
dBµV
∆f = 22.5 kHz; fmod = 1 kHz;
DEMP = 1; B = 300 Hz to 22 kHz;
measured with 75 Ω dummy
antenna and test circuit
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
2 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 1.
Symbol
Quick reference data …continued
Parameter
Conditions
Min
Typ
Max
Unit
Stereo decoder path
αcs
channel separation
fFMMPX = 1 kHz
40
-
-
dB
S/N
signal-to-noise ratio
fMPXAMIN = 20 Hz to 15 kHz;
referenced to 1 kHz at 91 % FM
modulation; DEMP = 1
70
-
-
dB
THD
total harmonic distortion
FM mode; DEMP = 1; measured
with 15 kHz brick-wall low-pass
filter; fMPXAMIN = 200 Hz to 15 kHz
-
-
0.3
%
Tone/volume control
Vi(max)
maximum input voltage
THD = 0.2 %; Gvol = −6 dB;
pins INAL, INAR, INAC, INBL,
INBR, INC and IND
2
-
-
V
THD
total harmonic distortion
configured as non-inverting,
single-ended inputs;
faudio = 20 Hz to 10 kHz;
Vi = 1 V (RMS)
-
0.02
0.1
%
Gvol
volume/balance gain control
see Table 83
Gstep(vol)
step resolution
Gtreble
treble gain control
maximum setting
[1]
-
20
-
dB
minimum setting
[1]
-
−75
-
dB
-
1
-
dB
TRE[2:0] = 111; TREM = 1
-
14
-
dB
TRE[2:0] = 111; TREM = 0
-
−14
-
dB
-
2
-
dB
Gstep(treble) step resolution gain
Gbass
Gstep(bass)
[1]
bass gain control
BAS[3:0] = 0111; BASM = 1
-
14
-
dB
BAS[3:0] = 0111; BASM = 0
-
−14
-
dB
-
2
-
dB
step resolution gain
The input gain setting ING and the volume setting VOL define the overall volume. The overall range is limited to −83 dB to +28 dB. For
values > +28 dB the actual value is +28 dB. For overall values < −83 dB the actual value is mute.
4. Ordering information
Table 2.
Ordering information
Type number
TEF6901AH
Package
Name
Description
Version
QFP64
plastic quad flat package; 64 leads (lead length 1.6 mm); body 14 × 14 × 2.7 mm SOT393-1
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
3 of 107
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51
50
60
INAL INAR INAC
59
58
57
INBL INBR INC
56
55
54
IND
53
52
AUDIO STEP INTERPOLATION
ana
VCCVCO
61
FM
STEREO
DECODER
vco
DIV
fREF
VCOFDB
VCOTNK
VCOGND
Rev. 03 — 20 March 2008
CPOUT
VTUNE
NOISE
BLANKER
HIGH
CUT
DE-EMPHASIS
50 µs/75 µs
INPUT
SELECT
VCCPLL
i.c.
VTCM
VTC
DAAOUT
FMMIX1IN1
LOUDNESS,
BASS,
TREBLE
48
47
46
45
F/R
FADER
hcc
SNC
USN
vco
PLL
÷N
AM NOISE
DETECTOR
BAND
÷M
OFFS
FM NOISE
DETECTOR
WAM
Φ
2
5
6
7
HCC
44
SM
tuning
mute
MULTIPATH,
LEVEL,
ADJACENT CHANNEL,
MODULATION AND
OFFSET
DETECTION
MOD
LO1 90°
1
4
43
reset
hold
fast
readhold
WEAK SIGNAL AND
FM BANDWIDTH
CONTROL LOGIC
TUNING
STATE
MACHINE
42
RDS
pll
IFMAGC
TRFAGC
41
40
RDS
DEMODULATOR
pll
i.c.
39
rds
vcm
vtc
38
37
LO1
10
TEF6901AH
90°
LO2
LEVEL
ifbw
vcc
90°
90°
11
90°
FM
DEMODULATOR
MIXER
MIXER
32
21
12
iFM
8
AM IF NOISE
DETECTOR
rf
30
rf
13
IF COUNT
FM/AM
RF AGC
CASCODE
CONTROL
iAM
14
15
i.c. dc
16 17
18
19
gnd
mix1
22
21
23
if1
25
24
6v
36
35
34
33
DGND
RDCL
RDDA
RDSGND
LEVEL
VCC
GND
VREF
V60
AM
DEMODULATOR
MIXER
MIXER
20
SDA
LO2
LO1
9
SCL
swap
dig
BW
ADDR
I2C-BUS
vref
FMMIX1IN2
LFOUT
RFOUT
LROUT
RROUT
soft mute
LO2 90°
3
AGND
snc
63
64
49
÷2
62
antenna DAA
PLLGND
INPUT GAIN,
VOLUME,
BALANCE,
MUTE
NXP Semiconductors
MPXAMOUT
MPXAMIN
XTAL1
5. Block diagram
TEF6901A_3
Product data sheet
XTAL2
26
27
28 29
30
31 32
008aaa002
4 of 107
© NXP B.V. 2008. All rights reserved.
i.c.
Fig 1. Block diagram of TEF6901AH
VAMCAS
VAMCASFB
AMMIX1DEC
AMMIX1REF
AMMIX1IN
MIX1OUT2
MIX1OUT1
IF1DEC
IFGND
IF1IN
AMMIX2OUT1
TAMIFKAGC
AMMIX2OUT2
AMIF2IN
AMIF2DEC
TEF6901A
IAMAGC VDCPIN
Integrated car radio
VCCRF RFGND
TEF6901A
NXP Semiconductors
Integrated car radio
6. Pinning information
49 AGND
50 XTAL1
51 XTAL2
52 IND
53 INC
54 INBR
55 INBL
56 INAC
57 INAR
58 INAL
59 MPXAMIN
60 MPXAMOUT
61 VCCVCO
62 VCOFDB
63 VCOTNK
64 VCOGND
6.1 Pinning
CPOUT
1
48 LFOUT
VTUNE
2
47 RFOUT
VCCPLL
3
46 LROUT
PLLGND
4
45 RROUT
i.c.
5
44 ADDR
VTCM
6
43 SCL
VTC
7
42 SDA
IFMAGC
8
TRFAGC
9
41 DGND
TEF6901AH
40 RDCL
DAAOUT 10
39 RDDA
FMMIX1IN1 11
38 RDSGND
FMMIX1IN2 12
37 LEVEL
VCCRF 13
36 VCC
RFGND 14
35 GND
IAMAGC 15
34 VREF
i.c. 16
AMIF2IN 32
AMIF2DEC 31
TAMIFKAGC 30
AMMIX2OUT2 29
AMMIX2OUT1 28
IF1IN 27
IF1DEC 26
IFGND 25
MIX1OUT2 24
MIX1OUT1 23
AMMIX1REF 22
AMMIX1IN 21
AMMIX1DEC 20
VAMCAS 19
VDCPIN 17
VAMCASFB 18
33 V60
008aaa003
Fig 2. Pin configuration for QFP64
6.2 Pin description
Table 3.
Pin description
Symbol
Pin
Description
CPOUT
1
charge pump output
VTUNE
2
tuning voltage; 3 mA charge pump output
VCCPLL
3
tuning PLL supply voltage
PLLGND
4
PLL ground
i.c.
5
internally connected; leave open
VTCM
6
Intermediate Frequency (IF) filter reference voltage
VTC
7
IF filter center voltage
IFMAGC
8
PIN diode current FM AGC
TRFAGC
9
FM and AM RF AGC time constant
DAAOUT
10
antenna Digital Auto Alignment (DAA) output
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
5 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 3.
Pin description …continued
Symbol
Pin
Description
FMMIX1IN1
11
FM mixer 1 input 1
FMMIX1IN2
12
FM mixer 1 input 2
VCCRF
13
AM/FM RF supply voltage
RFGND
14
RF ground
IAMAGC
15
PIN diode current AM AGC
i.c.
16
internally connected; leave open
VDCPIN
17
AM PIN diode DC bias voltage
VAMCASFB
18
feedback for cascode AM AGC
VAMCAS
19
cascode AM AGC
AMMIX1DEC
20
AM mixer 1 decoupling
AMMIX1IN
21
AM mixer 1 input
AMMIX1REF
22
AM mixer 1 reference
MIX1OUT1
23
AM and FM mixer 1 output 1 at IF1
MIX1OUT2
24
AM and FM mixer 1 output 2 at IF1
IFGND
25
IF ground
IF1DEC
26
AM and FM mixer 2 decoupling
IF1IN
27
AM and FM mixer 2 input
AMMIX2OUT1
28
AM mixer 2 output 1 at IF2
AMMIX2OUT2
29
AM mixer 2 output 2 at IF2
TAMIFKAGC
30
AM IF AGC and FM keyed AGC time constant
AMIF2DEC
31
AM IF2 input decoupling
AMIF2IN
32
AM IF2 input
V60
33
input for FM filter and demodulator supply current
VREF
34
reference voltage for noise decoupling
GND
35
ground
VCC
36
8.5 V supply voltage
LEVEL
37
AM and FM level voltage output
RDSGND
38
RDS ground
RDDA
39
RDS/RBDS demodulator data and quality output
RDCL
40
RDS/RBDS demodulator clock input or output
DGND
41
digital ground
SDA
42
I2C-bus Serial Data (SDA) input and output
SCL
43
I2C-bus Serial Clock (SCL) input
ADDR
44
I2C-bus slave address select input
RROUT
45
right rear audio output
LROUT
46
left rear audio output
RFOUT
47
right front audio output
LFOUT
48
left front audio output
AGND
49
analog ground
XTAL1
50
crystal oscillator 1
XTAL2
51
crystal oscillator 2
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
6 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 3.
Pin description …continued
Symbol
Pin
Description
IND
52
audio input D, signal input
INC
53
audio input C, common mode or signal input
INBR
54
audio input B, right channel
INBL
55
audio input B, left channel
INAC
56
audio input A, left channel inverted (or other options)
INAR
57
audio input A, right channel
INAL
58
audio input A, left channel
MPXAMIN
59
MPX and AM audio input to radio processing
MPXAMOUT
60
MPX and AM audio output from tuner part
VCCVCO
61
Voltage-Controlled Oscillator (VCO) supply voltage
VCOFDB
62
VCO feedback
VCOTNK
63
VCO tank circuit
VCOGND
64
VCO ground
7. Functional description
7.1 FM mixer 1
The FM quadrature mixer 1 converts FM RF (65 MHz to 108 MHz) to an IF frequency of
10.7 MHz. The FM mixer provides image rejection and a large dynamic range. Low and
high injection Local Oscillator (LO) can be selected via the I2C-bus.
7.2 FM RF AGC
AGC detection at the FM front-end mixer input with programmable threshold. When the
threshold is exceeded, the PIN diode drive circuit sources a current to an external PIN
diode circuit, keeping the RF signal level constant. Keyed AGC function is selectable via
the I2C-bus and uses the in-band level information derived from the limiter. The AGC PIN
diode drive circuit can optionally deliver a fixed current; this local mode can be used for
search tuning on absolute RF levels. In AM mode, the FM AGC PIN diode drive circuit can
be set to source a fixed current into the external FM PIN diode circuitry.
7.3 FM mixer 2
The FM quadrature mixer 2 converts 10.7 MHz IF1 to 450 kHz IF2 and includes image
rejection with the integrated channel filter. Two gain settings can be selected to
compensate for high ceramic filter insertion loss.
7.4 FM IF2 channel filter
The order and dynamic range of the FM IF2 channel filter is designed for operation with
only one external ceramic filter. The filter characteristic is optimized to combine high
selectivity with low distortion. The bandwidth of the filter can be set to a range of fixed
settings or automatically via the bandwidth control algorithm. When the automatic mode is
selected the bandwidth depends on the signal conditions.
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
7 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
7.5 FM limiter and level detection
The limiter amplifies the IF filter output signal, removes AM modulations from the IF signal
and supplies a well defined signal for the FM demodulator. From the limiter also the Radio
Signal Strength Information (RSSI) is derived which is converted to a suitable level voltage
with minimum temperature drift.
7.6 FM demodulator
The fully integrated FM demodulator converts the IF signal from the limiter to the
FM multiplex output signal with low distortion.
7.7 Center frequency and bandwidth tuning and center frequency DAA
The center frequency as well as the bandwidth of both the IF filter and demodulator are
coupled to the crystal reference frequency. A coarse alignment (IFCAP) sets the circuit
operating range and the center frequency fine adjustment is achieved with a 6-bit
alignment (IFCF).
7.8 Bandwidth control algorithm
The bandwidth of the IF filter can be selected with 5 bits, directly via I2C-bus or
automatically via the bandwidth control algorithm. The bandwidth control algorithm
detects the amount of adjacent channel interference, the deviation of the desired signal,
detuning, multipath and signal strength to define the optimum bandwidth setting of the
IF filter. Flexibility on the algorithm settings is provided via the I2C-bus control.
7.9 VCO and dividers
The varactor tuned LC oscillator together with the dividers provides the local oscillator
signal for both AM and FM front-end mixers. The VCO has an operating frequency of
approximately 160 MHz to 250 MHz. In FM mode the VCO frequency is divided by 2 or 3.
These dividers generate in-phase and quadrature-phase output signals used in the
FM front-end mixer for image rejection. In AM mode the VCO frequency is divided by 6, 8,
10, 16 or 20 depending on the selected AM band. The amplitude of the VCO is controlled
by a digital AGC to ensure a safe oscillation start-up at a wide range of the loaded Q.
7.10 Crystal oscillator
The crystal oscillator provides a 20.5 MHz signal. A divider-by-two generates in-phase
and quadrature-phase mixer frequencies for the conversion from IF1 to IF2 including
image rejection. The reference divider generates from the crystal frequency various
reference frequencies for the tuning PLL. Also timing signals for the sequential machine
as well as references for the integrated FM channel filter, the stereo decoder and the
integrated audio filters and the RDS demodulator are derived from the crystal reference.
7.11 Tuning PLL
The tuning PLL locks the VCO frequency divided by the programmable divider ratio to the
reference frequency. Due to the combination of different charge pump signals in the
PLL loop filter, the loop parameters are adapted dynamically. Tuning to different
RF frequencies is done by changing the programmable divider ratio. The tuning step size
is selected with the reference frequency divider setting.
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
8 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
7.12 Antenna DAA
For FM operation the antenna Digital Auto Alignment (DAA) measures the VCO tuning
voltage and multiplies it with a factor defined by the 7-bit DAA setting to generate a tuning
voltage for the FM antenna tank circuit (RF selectivity). In AM mode the DAA setting
controls a fixed voltage.
7.13 AM RF AGC control
The AM front-end is designed for the application of an external Junction Field Effect
Transistor (JFET) low noise amplifier with cascode AGC and PIN diode AGC both
controlled by an integrated AGC control circuit. Four AGC thresholds of the detector at the
first mixer input are selectable via I2C-bus. Detectors at the RF mixer input and at the
AMIF2 input prevent undesired overload (see Figure 40). AGC information can be read
out via I2C-bus. The PIN diode current drive circuit includes a pull-up current source for
reverse biasing of the PIN diode, when the AGC is not active to achieve a low parasitic
capacitance.
7.14 AM mixer 1
The large dynamic range AM mixer converts AM RF (144 kHz to 26.1 MHz) to an IF
frequency of 10.7 MHz.
7.15 AM IF noise blanker
The spike detection for the AM IF noise blanker is at the output of the AM front-end mixer.
Blanking is realized at the second AM mixer.
7.16 AM IF AGC amplifier and demodulator
The 450 kHz IF2 signal after the ceramic channel selection filter is amplified by the
IF AGC amplifier and demodulated.
7.17 AM level detection
The IF2 signal used for AM IF AGC and demodulation is also used in the limiter circuit for
in-band level detection.
7.18 AM and FM level DAA
The start and slope of the level detector output are programmable to achieve level
information independent of gain spread in the signal channel.
7.19 AM and FM IF counter
The output signal from the limiter is used for IF counting in both AM and FM.
7.20 Tuning mute
A soft slope tuning mute is controlled by the sequential machine for different tuning
actions to eliminate audible effects of tuning and band switching.
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
9 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
7.21 FM stereo decoder
A low-pass filter provides additional suppression of high frequency interferences at the
stereo decoder input and the necessary signal delay for FM noise blanking.
The MPX signal is decoded in the stereo decoder part. An integrated oscillator and pilot
PLL is used for the regeneration of the 38 kHz subcarrier. The required 19 kHz
and 38 kHz signals are generated by division of the oscillator output signal in logic
circuitry.
By means of a 19 kHz quadrature detector the pilot PLL oscillator frequency is locked to
the incoming 19 kHz stereo pilot. A pilot level voltage derived from a 19 kHz in-phase
detector is used for stereo detection and for generation of an anti-phase 19 kHz signal to
remove the pilot tone from the audio signal.
The signal is then decoded in the decoder part. The L-R side signal is demodulated using
the 38 kHz subcarrier and combined with the main signal to the left and right audio
channel. A fine adjustment is done by adjusting the gain of the L-R signal. A smooth mono
to stereo takeover is achieved by controlling the efficiency of the matrix by the Stereo
Noise Control (SNC) signal from the weak signal processing block.
7.22 FM and AM AF noise blanker
The FM or AM tuner operation selects between two noise blanker operations optimized for
FM or AM ignition noise suppression.
In FM mode the noise blanker operates as a modified sample and hold circuit with
ultrasonic noise detection on MPX and detection of noise spikes on level.
In AM mode the audio signal is muted during the interference pulse triggered by slew-rate
detection of the audio signal.
7.23 Fixed high cut and high cut control
The high cut part is a low-pass filter circuit with seven bandwidth settings. The cut-off
frequencies of the filter curves can be selected to match different application requirements
(fixed high cut).
The high cut circuit also provides a dynamic control of the filter response, the High Cut
Control (HCC). This function is controlled by the HCC signal from the weak signal
processing.
7.24 De-emphasis
The signal passes the low-pass filter de-emphasis block and is then fed to the source
selector. The de-emphasis time constant can be selected between the standards of 50 µs
and 75 µs.
7.25 Weak signal processing
The weak signal processing block detects quality degradations in the incoming signal and
controls the processing of the audio signal accordingly. The weak signal processing block
has three different quality criteria: The average value of the level voltage, AM components
on the level voltage (WAM = wideband AM) and high frequency components in the MPX
signal (USN = ultrasonic noise).
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
10 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
In the weak signal processing block these signals are combined in specific ways and used
for the generation of control signals for soft mute, stereo blend (SNC = stereo noise
control) and HCC. Detector time constants of soft mute, HCC and SNC can be selected
independently.
In AM mode, soft mute and HCC are controlled by the average value of the level voltage.
7.26 Audio step interpolation
The tone/volume blocks of source selector, volume/balance, bass/loudness, fader and
output mute include the Audio Step Interpolation (ASI) function. This minimizes audible
pops by smoothing the transitions in the audio signal during the switching of the controls.
7.27 Source selector
The source selector selects one out of several input sources:
• One internal stereo signal (AM/FM tuner)
• Seven input pins allow many combinations of external sources by means of flexible
input selection
Three of the seven input pins can connect to:
– 1 stereo signal with ground input for common mode rejection (CD)
– 1 stereo signal and 1 mono signal
Four more input pins can connect to:
– 1 stereo signal (AUX) and 1 mono signal with common mode rejection or
differential input (PHONE)
– 1 stereo signal (AUX) and 2 mono signals (e.g. NAV and BEEP)
– 2 stereo signals (AUX and AUX-2)
– 1 stereo signal with common mode rejection (CD-2) and 1 mono signal (e.g.
BEEP)
– 1 stereo signal with differential input (CD-symmetrical)
7.28 VU-meter read
The input audio level of external sources can read out via the I2C-bus. Audio level
information is available on a logarithmic scale. In radio mode the AM or FM modulation
index is available in the same way.
7.29 Volume and balance
The volume/balance control is used for volume setting and also for balance adjustment.
The control range of the volume/balance control is between +20 dB and −75 dB in steps
of 1 dB.
7.30 CD compression
Dynamic volume compression is available for external input sources. This option is
generally used for audio from CD or other digital formats to reduce the very high dynamic
range of these signals into a range suitable for the car environment.
TEF6901A_3
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7.31 Bass
The bass tone control stage controls the low audio frequencies with a modified shelve
curve response. The control range is between +14 dB and −14 dB in steps of 2 dB. Four
different filter cut-off frequencies can be selected.
7.32 Treble
The treble tone control stage controls the high audio frequencies with a shelve curve
response. The control range is between +14 dB and −14 dB in steps of 2 dB. Four
different filter cut-off frequencies can be selected.
7.33 Loudness
An integrated loudness function can be activated which controls bass and treble in relation
to the user volume setting. The control range of the bass frequencies is limited to 20 dB
and the optional treble range to 4 dB. Different volume ranges can be selected for the
loudness control.
7.34 Fader
The fader is located at the end of the tone/volume chain. The balance between the front
and rear channel can be controlled by attenuation of either the front or the rear channel.
Control range is 0 dB to −64 dB with a step size of 1 dB. Optionally the fader attenuation
can be activated for front and rear channels together.
7.35 RDS/RBDS demodulator
The RDS demodulator recovers and regenerates the continuously transmitted RDS or
RBDS data stream that may be part of the FM MPX signal and provides the signals clock
(RDCL) and data (RDDA) for further processing by a hardware or software RDS decoder.
Unbuffered demodulator output and buffered 16-bit output mode are available. The output
modes are compatible with stand-alone demodulator devices as well as digital and analog
signal processor standards. In case of buffered output mode additional RDS Quality
(RDQ) demodulation quality information is available optional.
8. I2C-bus protocol
SDA and SCL HIGH and LOW internal thresholds are specified according to both 2.5 V
and 3.3 V I2C-bus, however also SDA and SCL signals from a 5 V bus are supported. The
maximum I2C-bus communication speed is 400 kbit/s in accordance with the I2C-bus fast
mode specification.
S
SLAVE ADDRESS W
ACK-s
MSA
ACK-s
ACK-s
DATA
P
data transferred
(n bytes + acknowledge)
001aad051
Fig 3. Write mode
TEF6901A_3
Product data sheet
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TEF6901A
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Integrated car radio
S
SLAVE ADDRESS R
ACK-s
DATA
ACK-m
DATA
NA
data transferred
(n − 1 bytes + acknowledge)
P
001aad049
Fig 4. Read mode
Table 4.
Description of I2C-bus format
Code
Description
S
START condition
Slave address W
1100 0000b for pin ADDR grounded
1100 0010b for pin ADDR floating
Slave address R
1100 0001b for pin ADDR grounded
1100 0011b for pin ADDR floating
ACK-s
acknowledge generated by the slave
ACK-m
acknowledge generated by the master
NA
not acknowledge generated by the master
MSA
mode and subaddress byte
Data
data byte
P
STOP condition
8.1 Read mode
Application restriction to use the read mode: Read transmissions should not be
stopped after read byte 4 (IFBW) since this will disturb level read-out, weak signal
processing and bandwidth control. Read transmission can be stopped after any of the
other read bytes 0 to 3, 5 or 6.
The read data is loaded into the I2C-bus output register at the ACK clock pulse preceding
the data byte.
Table 5.
Read register overview
Data byte
Name
Reference
0
IFCOUNTER
Section 8.1.1
1
LEVEL
Section 8.1.2
2
USN/WAM
Section 8.1.3
3
MOD
Section 8.1.4
4
IFBW
Section 8.1.5
5
ID
Section 8.1.6
6
TEMP
Section 8.1.7
TEF6901A_3
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8.1.1 Read mode: data byte IFCOUNTER
Table 6.
IFCOUNTER - format of data byte 0
7
6
5
4
3
2
1
0
IFCM1
IFCM0
IFCS
IFCA
IFC3
IFC2
IFC1
IFC0
Table 7.
IFCOUNTER - data byte 0 bit description
Bit
Symbol
Description
7 and 6
IFCM[1:0]
IF counter mode; IFCM reads 00 immediately after I2C-bus start of
PRESET, SEARCH, AFU, JUMP or CHECK until the first IFC result of the
new tuning is available.
00 = no new counter result available (IFC value is previous result or
reset state)
01 = new counter result available (IFC value is new result)
10 = counter result from AF update (IFC value is AF result, value is
held until I2C-bus read). Also the detector information of LEV, USN,
WAM and MOD shows AF update results.
11 = Power-On Reset (POR) or undefined state of the state machine is
detected. The I2C-bus data is reset to POR state.
5
IFCS
IF counter sign
0 = the IF counter result indicates a positive RF frequency error
1 = the IF counter result indicates a negative RF frequency error
4
IFCA
IF counter accuracy
0 = IF counter result with 1 kHz resolution in FM mode and 0.5 kHz
resolution in AM mode
1 = IF counter result with 8 kHz resolution in FM mode and 4 kHz
resolution in AM mode
3 to 0
Table 8.
IFC[3:0]
IF counter result; see Table 8
IF counter result
IFC3
IFC2
IFC1
IFC0
Deviation from nominal value in FM
IFCA = 0
IFCA = 1
IFCA = 0
IFCA = 1
0
0
0
0
0 kHz to 1 kHz
reset state
0 kHz to 0.5 kHz
reset state
0
0
0
1
1 kHz to 2 kHz
-
0.5 kHz to 1 kHz
-
0
0
1
0
2 kHz to 3 kHz
16 kHz to 24 kHz
1 kHz to 1.5 kHz
8 kHz to 12 kHz
0
0
1
1
3 kHz to 4 kHz
24 kHz to 32 kHz
1.5 kHz to 2 kHz
12 kHz to 16 kHz
0
1
0
0
4 kHz to 5 kHz
32 kHz to 40 kHz
2 kHz to 2.5 kHz
16 kHz to 20 kHz
0
1
0
1
5 kHz to 6 kHz
40 kHz to 48 kHz
2.5 kHz to 3 kHz
20 kHz to 24 kHz
0
1
1
0
6 kHz to 7 kHz
48 kHz to 56 kHz
3 kHz to 3.5 kHz
24 kHz to 28 kHz
0
1
1
1
7 kHz to 8 kHz
56 kHz to 64 kHz
3.5 kHz to 4 kHz
28 kHz to 32 kHz
1
0
0
0
8 kHz to 9 kHz
64 kHz to 72 kHz
4 kHz to 4.5 kHz
32 kHz to 36 kHz
1
0
0
1
9 kHz to 10 kHz
72 kHz to 80 kHz
4.5 kHz to 5 kHz
36 kHz to 40 kHz
1
0
1
0
10 kHz to 11 kHz
80 kHz to 88 kHz
5 kHz to 5.5 kHz
40 kHz to 44 kHz
1
0
1
1
11 kHz to 12 kHz
88 kHz to 96 kHz
5.5 kHz to 6 kHz
44 kHz to 48 kHz
1
1
0
0
12 kHz to 13 kHz
96 kHz to 104 kHz
6 kHz to 6.5 kHz
48 kHz to 52 kHz
TEF6901A_3
Product data sheet
Deviation from nominal value in AM
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TEF6901A
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Integrated car radio
Table 8.
IFC3
IF counter result …continued
IFC2
IFC1
IFC0
Deviation from nominal value in FM
Deviation from nominal value in AM
IFCA = 0
IFCA = 1
IFCA = 0
IFCA = 1
1
1
0
1
13 kHz to 14 kHz
104 kHz to 112 kHz
6.5 kHz to 7 kHz
52 kHz to 56 kHz
1
1
1
0
14 kHz to 15 kHz
112 kHz to 120 kHz
7 kHz to 7.5 kHz
56 kHz to 60 kHz
1
1
1
1
15 kHz to 16 kHz
≥ 120 kHz
7.5 kHz to 8 kHz
≥ 60 kHz
After a tuning action, which is activated by the state machine, the IF counter is reset at
that moment when tuning is established (PLL in-lock). The first counter result is available
from 2 ms after reset. For FM further results can be obtained from 4 ms, 8 ms, 16 ms and
32 ms after reset, the increasing count time attenuates influence of FM modulation on the
counter result. After this, the counter continues at the maximum count time of 32 ms (see
Figure 5). For AM the count time is fixed to 2 ms and results are available every 2 ms.
After AF Update (AFU) sampling the IF counter read value is held (IFCM = 10) (see
Figure 6, Figure 17 and Figure 18) for easy I2C-bus read-out. The counter itself remains
active in the background in 2 ms count time mode. The IF counter data hold is released
after I2C-bus read.
IFCM reads 00 immediately after I2C-bus start of PRESET, SEARCH, AFU, JUMP or
CHECK until the first new tuning IFC result is available.
tuning
f1
time
f2
2 ms 2 ms
4 ms
8 ms
16 ms
32 ms
32 ms
32 ms
32 ms
32 ms
16 ms
counter time
8 ms
4 ms
2 ms
I2C-bus
register
reset
f2
001aab785
Fig 5. IF counter in FM mode after tuning
TEF6901A_3
Product data sheet
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TEF6901A
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Integrated car radio
tuning for AF update
f1
f2
time
f2
2 ms
f1
2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms 2 ms
4 ms
8 ms
16 ms
32 ms
16 ms
8 ms
counter time
4 ms
2 ms
2 ms
reset
I2C-bus
register
reset
f1
hold of counter result of f2 until read-out
001aab786
read-out of counter result f2
Fig 6. IF counter in FM mode during and after AF update
8.1.2 Read mode: data byte LEVEL
Table 9.
LEVEL - format of data byte 1
7
6
5
4
3
2
1
0
LEV7
LEV6
LEV5
LEV4
LEV3
LEV2
LEV1
LEV0
Table 10.
LEVEL - data byte 1 bit description
Bit
Symbol
Description
7 to 0
LEV[7:0]
level detector; this byte indicates the LEVEL voltage between
0.25 V (LEV = 0) and 4.25 V (LEV = 255) from the tuner part;
VLEVEL = 1⁄64LEV[7:0] + 0.25 V; see Figure 7
After AF update sampling the level read value is held (indicated by IFCM = 10) for easy
I2C-bus read-out. The level detector remains active in the background. The LEV data hold
is released after I2C-bus read.
To reduce the influence of modulation in AM mode the LEV information is additionally
filtered by a slow 60 ms detector. Fast level information is made available during
AF update and check tuning.
For standard operation the following level alignment (byte LEVELALGN; see Table 43) is
used:
FM and AM level slope; ∆LEV = 51 (∆VLEVEL = 0.80 V) at ∆VRF = 20 dB (measured at
VRF = 200 µV and VRF = 20 µV)
FM mode level start; LEV = 78 (VLEVEL = 1.47 V) at VRF = 20 µV
AM mode level start; LEV = 63 (VLEVEL = 1.24 V) at VRF = 20 µV
TEF6901A_3
Product data sheet
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Integrated car radio
001aab521
4
VLEVEL
(V)
3
2
1
0
10−4
10−3
10−2
10−1
1
10
102
VANT (mV)
Fig 7. FM RF antenna input signal and level output voltage
8.1.3 Read mode: data byte USN/WAM
Table 11.
USN/WAM - format of data byte 2
7
6
5
4
3
2
1
0
USN3
USN2
USN1
USN0
WAM3
WAM2
WAM1
WAM0
Table 12.
USN/WAM - data byte 2 bit description
Bit
Symbol
Description
7 to 4
USN[3:0]
ultrasonic noise detector; this value indicates the USN content of the
MPX audio signal; see Figure 24
3 to 0
WAM[3:0]
wideband AM detector; this value indicates the WAM content of the
LEVEL voltage; see Figure 24
After AF update sampling the USN and WAM read value is held (indicated by IFCM = 10)
for easy I2C-bus read-out. The USN and WAM detectors remain active in the background.
The USN and WAM data hold is released after I2C-bus read.
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TEF6901A
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8.1.4 Read mode: data byte MOD
Table 13.
MOD - format of data byte 3
7
6
5
4
3
2
1
0
MOD4
MOD3
MOD2
MOD1
MOD0
STIN
TAS1
TAS0
Table 14.
MOD - data byte 3 bit description
Bit
Symbol
Description
7 to 3
MOD[4:0]
modulation detector; this value indicates the audio modulation; see
Table 15
FM between 0 kHz and 150 kHz FM deviation
AM between 0 % and 200 % modulation
FM offset detector; a read value of 31 indicates offset detection. The
offset detector is part of the FM bandwidth control algorithm and detects
adjacent channel breakthrough.
VU-meter; when an external audio source is selected and VU-meter read
is active (see subaddress 17h; see Table 97) MOD indicates the audio
input level (RMS) between 0 V and 2 V; see Table 15.
2
STIN
stereo indicator; this bit indicates if a stereo pilot signal has been
detected
0 = no pilot signal detected
1 = pilot signal is detected and the FM stereo decoder is activated
1 and 0
TAS[1:0]
Tuning action state; state machine information. The signal TAS informs
about internal control functions of the tuner action state machine. This
way the progress of tuner actions can be monitored by the
microcontroller.
00 = inactive
01 = starting mute
10 = PLL tuning
11 = tuning ready with mute active
Table 15.
MOD detector
MOD4 MOD3 MOD2 MOD1 MOD0 FM radio ∆f
External source
0
0
0
0
0
< 1.5 kHz
<2%
-
< 0.02 V
0
0
0
0
1
1.5 kHz
2%
−34 dB
0.02 V
0
0
0
1
0
3 kHz
4%
−28 dB
0.04 V
0
0
0
1
1
4.5 kHz
6%
−24 dB
0.06 V
0
0
1
0
0
6 kHz
8%
−22 dB
0.08 V
0
0
1
0
1
7.5 kHz
10 %
−20 dB
0.1 V
0
0
1
1
0
9.5 kHz
13 %
−18 dB
0.13 V
0
0
1
1
1
12 kHz
16 %
−16 dB
0.16 V
0
1
0
0
0
15 kHz
20 %
−14 dB
0.2 V
0
1
0
0
1
19 kHz
25 %
−12 dB
0.25 V
0
1
0
1
0
24 kHz
32 %
−10 dB
0.32 V
0
1
0
1
1
30 kHz
40 %
−8 dB
0.4 V
0
1
1
0
0
38 kHz
50 %
−6 dB
0.5 V
TEF6901A_3
Product data sheet
AM radio m VU
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TEF6901A
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Table 15.
MOD detector …continued
MOD4 MOD3 MOD2 MOD1 MOD0 FM radio ∆f
AM radio m VU
External source
0
1
1
0
1
47 kHz
63 %
−4 dB
0.63 V
0
1
1
1
0
60 kHz
80 %
−2 dB
0.8 V
0
1
1
1
1
75 kHz
100 %
0 dB
1V
1
0
0
0
0
95 kHz
125 %
2 dB
1.25 V
1
0
0
0
1
120 kHz
160 %
4 dB
1.6 V
1
0
0
1
0
150 kHz
200 %
6 dB
2V
1
0
0
1
1
-
-
-
-
:
:
:
:
:
:
:
:
:
1
1
1
1
0
-
-
-
-
1
1
1
1
1
offset
detection
-
-
-
The indicated amplitude levels are approximate values.
In the case of FM radio, carrier modulation is measured (MPX FM deviation). Timing is
fixed with fast 30 ms release time. Depending upon reception conditions and internal
offsets small modulation levels may be indicated as MOD[4:0] = 0 0000b. After AF update
sampling the MOD read value is held (indicated by IFCM = 10) for easy I2C-bus read-out.
The MOD detector remains active in the background. The MOD data hold is released after
I2C-bus read.
In the case of AM radio, carrier modulation is measured (AM). Timing is fixed with fast
30 ms release time. Modulation may exceed 100 % in cases of special modulation
schemes as used by some stations. After AF update sampling, the MOD read value is
held (indicated by IFCM = 10) for easy I2C-bus read-out. The MOD detector remains
active in the background. The MOD data hold is released after I2C-bus read.
With external source selection and VU-meter mode disabled (AVUM = 0 and COMP = 0)
FM or AM modulation is indicated equal to radio mode.
With external source selection and VU-meter mode enabled (AVUM = 1 or COMP = 1) the
audio input level of the external source is indicated (i.e. the audio level as found on the line
input pins). For stereo signals left and right channels are combined for MOD read
(0.5 × L + 0.5 × R). VU-meter timing is defined by setting HTC. For AVUM control see
subaddress 17h; see Table 97. In case of AF update sampling the AM or FM modulation
value is indicated with data hold (indicated by IFCM = 10) for easy I2C-bus read-out. The
MOD data hold is released after I2C-bus read and VU-meter indication continues.
TEF6901A_3
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TEF6901A
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8.1.5 Read mode: data byte IFBW
Table 16.
IFBW - format of data byte 4
7
6
5
4
3
2
1
0
RAGC1
RAGC0
ASIA
IFBW4
IFBW3
IFBW2
IFBW1
IFBW0
Table 17.
IFBW - data byte 4 bit description
Bit
Symbol
Description
7 and 6
RAGC[1:0] RF AGC indicator; PIN diode current on pins IAMAGC or IFMAGC
00 =
FM: < 0.05 mA
AM: < 0.1 mA
01 =
FM: 0.05 mA to 0.5 mA
AM: 0.1 mA to 0.5 mA
10 = 0.5 mA to 2.5 mA
11 = > 2.5 mA
5
ASIA
ASI active; this bit indicates activity of the audio step interpolation
function
0 = ASI is not active
1 = ASI step is in progress
4 to 0
IFBW[4:0]
FM IF filter bandwidth control; 57 kHz (0 0000) to 165 kHz (1 1111). The
bandwidth read data equals the write data definition (at DYN = 0; see
Table 28).
8.1.6 Read mode: data byte ID
Table 18.
ID - format of data byte 5
7
6
5
4
3
2
1
0
IFCAPG
-
-
-
-
ID2
ID1
ID0
Table 19.
ID - data byte 5 bit description
Bit
Symbol
Description
7
IFCAPG
IF filter gear; read value is used for IFCAP adjustment (byte IFCAP);
see Table 47
6 to 3
-
reserved
2 to 0
ID[2:0]
device type identification 000 = TEF6901A
TEF6901A_3
Product data sheet
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8.1.7 Read mode: data byte TEMP
Table 20.
TEMP - format of data byte 6
7
6
5
4
3
2
1
0
TEMP7
TEMP6
TEMP5
TEMP4
TEMP3
TEMP2
TEMP1
TEMP0
Table 21.
TEMP - data byte 6 bit description
Bit
Symbol
Description
7 to 0
TEMP[7:0] on-chip temperature; 1 step ≈ 1 K; relative indication
8.2 Write mode
The device is controlled by the I2C-bus. After the Integrated Circuit (IC) address the MSA
byte contains the control of the tuning action via the bits MODE[2:0] and subaddressing
via bits SA[4:0] (see Figure 8).
All circuits are controlled by the CONTROL register. Any data change in the CONTROL
register has immediate effect and will change the operation of the circuit accordingly. The
subaddress range 00h to 05h includes data that may lead to audible disturbance when
changed. Therefore the subaddress range 00h to 05h is not loaded in the CONTROL
register directly but loaded in a BUFFER register instead. This allows the IC to take care
of tuning actions and mute control, freeing the microcontroller from cumbersome controls
and timings. The subaddress range of 06h onwards does not contain such critical data.
I2C-bus information in this range will be loaded in the CONTROL register directly (at
acknowledge of each byte).
Controlled by a state machine the BUFFER data will be loaded in the CONTROL register
for new settings. However at the same time the CONTROL data is loaded in the BUFFER
register. This register swap action allows a fast return to the previous setting because the
previous data remains available in the BUFFER register (see Figure 10, Figure 11 and
Figure 12).
Via MODE several operational modes can be selected for the state machine. MODE offers
all standard tuning actions as well as generic control for flexibility. The state machine
controls the tuner directly by controlling the I2C-bus data. Internal circuits like the IF
counter, mute and weak signal processing are controlled complementary to the tuner
action. The state machine operation starts at the end of transmission (P = STOP). In case
a previous action is still active this is overruled and the new action defined by MODE is
started immediately.
When only the address byte is transmitted no action is started and no setting is changed,
this can be used to test the presence of the device on the bus. To minimize the I2C-bus
transmission time only bytes that include data changes need to be written. Following the
MSA byte the transmission can start at any given data byte defined by the subaddress
(SA) bits. In case of MODE = preset, search or load the value of buffered data that is not
overwritten by the new transmission will equal the control register content, i.e. the current
tuner state. Instead in case of MODE = buffer, AF update, jump, check or end any not
overwritten BUFFER data remains to be the existing BUFFER register content, i.e. the
previous tuner state.
TEF6901A_3
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21 of 107
TEF6901A
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After power-on reset, all registers, including the reserved registers, should be initialized
with their default settings (see Table 22) using a preset mode tuning action (see Table 25).
The tuning mute circuit is muted. An action of the state machine is required to de-mute the
circuit, for this purpose preset mode (bits MODE[2:0] = 001) is best fitted since it assures
fast settling of all parameters before mute is released.
Table 22.
Write mode subaddress overview
Subaddress
Name
Default
Reference
00h
BANDWIDTH
1111 1110
Section 8.2.2
01h
PLLM
0000 1000
Section 8.2.3
02h
PLLL
0111 1110
Section 8.2.3
03h
DAA
0100 0000
Section 8.2.4
04h
AGC
0000 0000
Section 8.2.5
05h
BAND
0010 0000
Section 8.2.6
06h
LEVELALGN
1000 0100
Section 8.2.8
07h
IFCF
0010 0000
Section 8.2.9
08h
IFCAP
0000 1000
Section 8.2.10
09h
ACD
0100 1010
Section 8.2.11
0Ah
SENSE
1000 0101
Section 8.2.12
0Bh
TIMING
0110 0110
Section 8.2.13
0Ch
SNC
0111 0100
Section 8.2.14
0Dh
HIGHCUT
0110 1111
Section 8.2.15
0Eh
SOFTMUTE
0110 1010
Section 8.2.16
0Fh
RADIO
0001 1010
Section 8.2.17
10h
INPUT
0000 1010
Section 8.2.18
11h
VOLUME
0011 0000
Section 8.2.19
12h
TREBLE
0000 1100
Section 8.2.20
13h
BASS
0000 1100
Section 8.2.21
14h
FADER
0000 0000
Section 8.2.22
15h
OUTPUT
0000 1111
Section 8.2.23
16h
BALANCE
1000 0000
Section 8.2.24
17h
LOUDNESS
0000 1100
Section 8.2.25
18h
POWER
0000 0110
Section 8.2.26
19h to 1Eh
reserved
0000 0000
Section 8.2.27
1Fh
TEST
0000 0000
Section 8.2.28
TEF6901A_3
Product data sheet
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Rev. 03 — 20 March 2008
22 of 107
TEF6901A
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Integrated car radio
I2C-BUS
MODE
SA = 00h to 05h
SA = 06h to 1Fh
BUFFER REGISTER
SA = 00h to 05h
LOAD
MODE DECODER
PRESET,
SEARCH
STATE MACHINE
AFU, JUMP,
CHECK
IF COUNTER
WS DETECTORS
WS PROCESSING
TUNING MUTE
SWAP
PRELOAD
CONTROL REGISTER
SA = 00h to 05h
SA = 06h to 1Fh
TUNER AND AUDIO CIRCUIT
001aab522
Fig 8. I2C-bus and state machine control
TEF6901A_3
Product data sheet
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TEF6901A
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Integrated car radio
MODE = buffer or end
SA = 2
address
BUFFER
MSA
byte 2
byte 3
byte 4
P
byte 0
previous
previous
byte 1
previous
previous
byte 2
previous
byte 3
previous
byte 4
previous
byte 5
previous
new
new
new
new
new
new
previous
state machine stop
for MODE = end only
CONTROL
byte 0
current
current
byte 1
current
current
byte 2
current
current
byte 3
current
current
byte 4
current
current
byte 5
current
current
001aab523
Fig 9. Write without state machine action, no preload, no register swap
TEF6901A_3
Product data sheet
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24 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
MODE = AFU, jump or check
SA = 2
address
BUFFER
MSA
byte 2
byte 3
byte 4
byte 5
P
byte 0
previous
current
byte 1
previous
current
byte 2
previous
byte 3
previous
byte 4
previous
byte 5
previous
current
new
current
new
current
new
new
current
state machine start
swap
CONTROL
byte 0
current
previous
byte 1
current
previous
byte 2
current
new
byte 3
current
new
byte 4
current
new
byte 5
current
new
001aab524
Fig 10. Write with state machine action and swap, no preload
TEF6901A_3
Product data sheet
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TEF6901A
NXP Semiconductors
Integrated car radio
MODE = preset or search
SA = 3
address
BUFFER
MSA
byte 3
byte 4
byte 5
P
byte 0
previous
current
current
byte 1
previous
current
current
byte 2
previous
current
current
byte 3
previous
current
byte 4
previous
current
byte 5
previous
current
new
preload
current
new
current
new
current
state machine start
swap
CONTROL
byte 0
current
current
byte 1
current
current
byte 2
current
current
byte 3
current
new
byte 4
current
new
byte 5
current
new
001aab525
Fig 11. Write with state machine action, preload and swap
TEF6901A_3
Product data sheet
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Rev. 03 — 20 March 2008
26 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
MODE = load
SA = 3
address
BUFFER
MSA
byte 3
byte 4
byte 5
P
byte 0
previous
current
current
byte 1
previous
current
current
byte 2
previous
current
current
byte 3
previous
current
byte 4
previous
current
byte 5
previous
current
current
new
current
new
new
preload
CONTROL
current
swap
byte 0
current
current
byte 1
current
current
byte 2
current
current
byte 3
current
new
byte 4
current
new
byte 5
current
new
001aab526
Fig 12. Write without state machine action, with preload and swap
8.2.1 Mode and subaddress byte for write
Table 23.
MSA - format of mode and subaddress byte
7
6
5
4
3
2
1
0
MODE2
MODE1
MODE0
SA4
SA3
SA2
SA1
SA0
Table 24.
MSA - mode and subaddress byte bit description
Bit
Symbol
Description
7 to 5
MODE[2:0]
mode tuning action; see Table 25
4 to 0
SA[4:0]
Subaddress; 0 0000 to 1 1111 = write data byte subaddress 00h to 1Fh.
The subaddress value is auto-incremented and will revert from
SA = 1Fh to SA = 00h. The auto-increment function cannot be disabled.
TEF6901A_3
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TEF6901A
NXP Semiconductors
Integrated car radio
Table 25.
Tuning action modes
MODE2 MODE1 MODE0 Symbol
Description
0
0
0
buffer
write BUFFER register, no state machine action, no
register swap; see Figure 9
0
0
1
preset
tune to new program with 60 ms mute control; swap;
see Figure 13 and Figure 14; BUFFER is preloaded with
CONTROL register; immediate swap; see Figure 11
0
1
0
search
tune to new program and stay muted (to release use
end); swap; see Figure 15 and Figure 16; BUFFER is
preloaded with CONTROL register; see Figure 11
0
1
1
AF update tune to AF program; check AF quality and tune back to
main program; two register swap operations;
see Figure 10, Figure 17 and Figure 18
1
0
0
jump
tune to AF program in minimum time; register swap;
see Figure 10, Figure 19 and Figure 20
1
0
1
check
tune to AF program and stay muted (to release use end);
register swap; see Figure 10, Figure 21 and Figure 22
1
1
0
load
write CONTROL register via BUFFER; no state machine
action; BUFFER is preloaded with CONTROL register;
immediate swap; see Figure 12
1
1
1
end
end action; release mute; no register swap; see Figure 9
and Figure 23
Since buffer mode (bits MODE[2:0] = 000) does not change any tuner action or register
other then those defined by the I2C-bus write transmission it generally is the mode used
for writing outside the buffered subaddress range (i.e. bits SA[4:0] = 06h to 1Fh). Writing
in the subaddress range of 06h to 1Fh is executed immediately and is not controlled by
the state machine. Load mode does not interrupt a state machine process, the preload
action changes the content of the BUFFER register which may interfere with a tuner
action in progress.
When a new state machine tuning action is started during a mute state of the state
machine, the new action skips the unnecessary activation of mute and starts immediately
with the actions that follow the mute period in the standard sequence. In this way fastest
timing is possible e.g. for search tuning (see Figure 14, Figure 16, Figure 20 and
Figure 22). When AF update mode is started during a mute state only the return tuning
action will be performed; in combination with check mode an AF update can be created
with the AF sampling time defined by I2C-bus control (see Figure 18).
The FM IF2 signal path contains a digital controlled AGC function with a maximum AGC
decay time of 13 ms to realize sufficient AM suppression during changing signal
conditions and high modulation situations. During the settling of the AGC (e.g. after a
tuning action), the gain of the FM path and the level detection can be affected. To get
correct signal quality information, a minimum time of 13 ms should be used between two
tuning actions.
TEF6901A_3
Product data sheet
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Rev. 03 — 20 March 2008
28 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
I2C-bus
P
1 ms
time
PLL
f1
tuning
60 ms
1 ms
f2
register SWAP
IF counter reset
quality detector reset
tuning mute
WS processing
TAS read
FAST
'10'
'01'
'00'
'11'
'11'
'00'
001aab527
Fig 13. Preset mode
I2C-bus
P
PLL
time
tuning
f1
1 ms
60 ms
f2
register SWAP
IF counter reset
quality detector reset
tuning mute
WS processing
FAST
HOLD
TAS read
'11'
FAST
'10'
'11'
'11'
'00'
001aab528
Fig 14. Preset mode, started during mute
TEF6901A_3
Product data sheet
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Rev. 03 — 20 March 2008
29 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
I2C-bus
P
time
1 ms
PLL
tuning
f1
f2
register SWAP
IF counter reset
quality detector reset
tuning mute
WS processing
TAS read
FAST
'10'
'01'
'00'
'11'
'11'
001aab529
Fig 15. Search mode
I2C-bus
P
PLL
time
tuning
f1
f2
register SWAP
IF counter reset
quality detector reset
tuning mute
WS processing
FAST
HOLD
TAS read
'11'
FAST
'10'
'11'
'11'
001aab530
Fig 16. Search mode, started during mute
TEF6901A_3
Product data sheet
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Rev. 03 — 20 March 2008
30 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
I2C-bus
P
0.5 ms
1 ms
time
PLL
tuning
f1
PLL
2 ms
f2
f2
1 ms
f1
register SWAP
IF counter reset
quality detector reset
counter and detector result HOLD until I2C-bus read
IF counter hold
quality detector hold
tuning mute
HOLD
WS processing
TAS read
'11'
'10'
'01'
'00'
'10'
'00'
'00'
001aab531
Fig 17. AF update mode
I2C-bus
P
0.5 ms
1 ms
PLL
time
tuning
f2
f1
register SWAP
IF counter reset
quality detector reset
IF counter hold
quality detector hold
counter and detector result HOLD until I2C-bus read
tuning mute
WS processing FAST
TAS read
'11'
HOLD
'10'
'00'
'00'
001aab532
Fig 18. AF update mode, started during mute
TEF6901A_3
Product data sheet
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Rev. 03 — 20 March 2008
31 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
I2C-bus
P
0.5 ms
1 ms
time
1 ms
PLL
tuning
f1
f2
register SWAP
IF counter reset
quality detector reset
tuning mute
WS processing
TAS read
HOLD
'10'
'01'
'00'
'11'
'00'
'00'
001aab533
Fig 19. Jump mode
I2C-bus
P
PLL
time
tuning
f1
0.5 ms
1 ms
f2
register SWAP
IF counter reset
quality detector reset
tuning mute
WS processing
TAS read
HOLD
FAST
'11'
HOLD
'10'
'11'
'00'
'00'
001aab534
Fig 20. Jump mode, started during mute
TEF6901A_3
Product data sheet
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Rev. 03 — 20 March 2008
32 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
I2C-bus
P
1 ms
time
tuning
PLL
f1
f2
register SWAP
IF counter reset
quality detector reset
tuning mute
WS processing
TAS read
HOLD
'10'
'01'
'00'
'11'
'11'
001aab535
Fig 21. Check mode
I2C-bus
P
PLL
time
tuning
f1
f2
register SWAP
IF counter reset
quality detector reset
tuning mute
WS processing
HOLD
FAST
HOLD
TAS read
'11'
'10'
'11'
'11'
001aab536
Fig 22. Check mode, started during mute
TEF6901A_3
Product data sheet
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Rev. 03 — 20 March 2008
33 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
P
I2C-bus
1 ms
time
tuning mute
WS processing
HOLD
FAST
TAS read
'11'
'00'
'00'
001aab537
Fig 23. End mode
8.2.2 Write mode: data byte BANDWIDTH
Table 26.
BANDWIDTH - format of data byte 00h with default setting (buffered)
7
6
5
4
3
2
1
0
DYN
BW4
BW3
BW2
BW1
BW0
TE1
TE0
1
1
1
1
1
1
1
0
Table 27.
BANDWIDTH - data byte 00h bit description
Bit
Symbol
Description
7
DYN
dynamic bandwidth; see Table 28
0 = FM IF bandwidth set by BW
1 = FM IF bandwidth dynamically controlled
6 to 2
BW[4:0]
FM IF bandwidth; see Table 28
DYN = 0
00h to 1Fh = FM fixed IF bandwidth 57 kHz to 165 kHz
DYN = 1
00h to 0Fh = minimum dynamic bandwidth 57 kHz to 109 kHz
10h to 1Fh = maximum dynamic bandwidth 113 kHz to 165 kHz
1 and 0
TE[1:0]
threshold extension
00 = no threshold extension
01 = threshold extension low
10 = threshold extension standard
11 = threshold extension high
TEF6901A_3
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34 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 28.
FM IF bandwidth selection
BW4
BW3
BW2
BW1
BW0
DYN = 0
DYN = 1
0
0
0
0
0
57 kHz
57 kHz to 165 kHz
0
0
0
0
1
60 kHz
60 kHz to 165 kHz
0
0
0
1
0
64 kHz
64 kHz to 165 kHz
0
0
0
1
1
67 kHz
67 kHz to 165 kHz
0
0
1
0
0
71 kHz
71 kHz to 165 kHz
0
0
1
0
1
74 kHz
74 kHz to 165 kHz
0
0
1
1
0
78 kHz
78 kHz to 165 kHz
0
0
1
1
1
81 kHz
81 kHz to 165 kHz
0
1
0
0
0
85 kHz
85 kHz to 165 kHz
0
1
0
0
1
88 kHz
88 kHz to 165 kHz
0
1
0
1
0
92 kHz
92 kHz to 165 kHz
0
1
0
1
1
95 kHz
95 kHz to 165 kHz
0
1
1
0
0
99 kHz
99 kHz to 165 kHz
0
1
1
0
1
102 kHz
102 kHz to 165 kHz
0
1
1
1
0
106 kHz
106 kHz to 165 kHz
0
1
1
1
1
109 kHz
109 kHz to 165 kHz
1
0
0
0
0
113 kHz
57 kHz to 113 kHz
1
0
0
0
1
116 kHz
57 kHz to 116 kHz
1
0
0
1
0
120 kHz
57 kHz to 120 kHz
1
0
0
1
1
123 kHz
57 kHz to 123 kHz
1
0
1
0
0
127 kHz
57 kHz to 127 kHz
1
0
1
0
1
130 kHz
57 kHz to 130 kHz
1
0
1
1
0
134 kHz
57 kHz to 134 kHz
1
0
1
1
1
137 kHz
57 kHz to 137 kHz
1
1
0
0
0
141 kHz
57 kHz to 141 kHz
1
1
0
0
1
144 kHz
57 kHz to 144 kHz
1
1
0
1
0
148 kHz
57 kHz to 148 kHz
1
1
0
1
1
151 kHz
57 kHz to 151 kHz
1
1
1
0
0
155 kHz
57 kHz to 155 kHz
1
1
1
0
1
158 kHz
57 kHz to 158 kHz
1
1
1
1
0
162 kHz
57 kHz to 162 kHz
1
1
1
1
1
165 kHz
57 kHz to 165 kHz
TEF6901A_3
Product data sheet
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35 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
8.2.3 Write mode: data bytes PLLM and PLLL
Table 29.
PLLM - format of data byte 01h with default setting (buffered)
7
6
5
4
3
2
1
0
RFGAIN
PLL14
PLL13
PLL12
PLL11
PLL10
PLL9
PLL8
0
0
0
0
1
0
0
0
Table 30.
PLLL - format of data byte 02h with default setting (buffered)
7
6
5
4
3
2
1
0
PLL7
PLL6
PLL5
PLL4
PLL3
PLL2
PLL1
PLL0
0
1
1
1
1
1
1
0
Table 31.
PLLM and PLLL - data byte 01h and data byte 02h bit description
Bit
Symbol
Description
7 (PLLM)
RFGAIN
RF gain setting in FM mode
0 = standard RF gain
1 = +6 dB additional RF gain at FM mixer 1
6 to 0
(PLLM)
7 to 0
(PLLL)
PLL[14:0]
VCO programmable divider N; application range of N = 1024 to 32767;
see Section 8.2.7
8.2.4 Write mode: data byte DAA
Table 32.
DAA - format of data byte 03h with default setting (buffered)
7
6
5
4
3
2
1
0
0
DAA6
DAA5
DAA4
DAA3
DAA2
DAA1
DAA0
1
0
0
0
0
0
0
Table 33.
DAA - data byte 03h bit description
Bit
Symbol
Description
7
-
reserved; 0 = normal operation
6 to 0
DAA[6:0]
RF selectivity alignment
FM: alignment of antenna circuit tuning voltage
(0.1 × VVCO to 2.0 × VVCO)
AM: voltage Digital-to-Analog Converter (DAC) output
(0.1 × 4.3 V to 2.0 × 4.3 V)
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TEF6901A
NXP Semiconductors
Integrated car radio
8.2.5 Write mode: data byte AGC
Table 34.
AGC - format of data byte 04h with default setting (buffered)
7
6
5
4
3
2
1
0
AGCSW
IFGAIN
0
0
AGC1
AGC0
KAGC
LODX
0
0
0
0
0
0
Table 35.
AGC - data byte 04h bit description
Bit
Symbol
Description
7
AGCSW
RF AGC switch
0 = no control of unused RF AGC
1 = unused AM RF AGC PIN diode at FM mode, or unused FM RF
AGC PIN diode at AM mode is supplied with a constant current for fixed
attenuation
6
IFGAIN
IF gain
0 = IF gain for low loss 10.7 MHz filter
1 = increased IF gain (3 dB) for high loss 10.7 MHz filter
5 and 4
-
3 and 2
AGC[1:0]
reserved; 0 = normal operation
setting of RF AGC threshold voltage
FM mixer 1 input voltage (RMS value)
00 = 24 mV
01 = 17 mV
10 = 12 mV
11 = 9 mV
AM mixer 1 input voltage (peak-to-peak value)
00 = 1000 mV
01 = 700 mV
10 = 500 mV
11 = 350 mV
1
KAGC
keyed AGC
FM mode
0 = keyed AGC off
1 = keyed AGC on; the AGC start level is shifted to a value 10 dB above
the standard AGC start level, when the level voltage of the wanted RF
signal is below the threshold level voltage for narrow-band AGC
AM mode
0 = RF cascode AGC enabled with full range
1 = RF cascode AGC enabled with limited range
0
LODX
FM: local switch
0 = standard operation (DX)
1 = forced FM RF AGC attenuation (LOCAL)
AM: trigger signal from AM IF noise blanker to AM audio noise blanker
0 = trigger signal active for low modulation (m < 0.05) only
1 = trigger signal always active, independent of modulation
TEF6901A_3
Product data sheet
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37 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
8.2.6 Write mode: data byte BAND
Table 36.
BAND - format of data byte 05h with default setting (buffered)
7
6
5
4
3
2
1
0
BAND2
BAND1
BAND0
FREF2
FREF1
FREF0
LOINJ
0
0
0
1
0
0
0
0
Table 37.
BAND - data byte 05h bit description
Bit
Symbol
Description
7 to 5
BAND[2:0] FM and AM band selection; see Table 38
4 to 2
FREF[2:0] PLL reference frequency; see Table 39
1
LOINJ
FM mixer 1 image suppression
0 = high injection image suppression
1 = low injection image suppression
0
-
reserved; 0 = normal operation
Table 38.
Decoding of BAND bits
BAND2
BAND1
BAND0
Divider ratio M
Receiver band
0
0
0
-
reserved
0
0
1
2
FM
0
1
0
3
FM
0
1
1
6
AM
1
0
0
8
AM
1
0
1
10
AM
1
1
0
16
AM
1
1
1
20
AM
Table 39.
Reference frequencies
FREF2
FREF1
FREF0
fref
0
0
0
100 kHz
0
0
1
50 kHz
0
1
0
25 kHz
0
1
1
20 kHz
1
0
0
10 kHz
1
0
1
reserved
1
1
0
reserved
1
1
1
reserved
Different PLL charge pump currents are used for different reference frequencies to
maintain best PLL loop stability; see Table 40.
Settings FREF[2:0] = 000 (100 kHz) and FREF[2:0] = 001 (50 kHz) include additional high
current charge pump control to realize fast PLL locking within 1 ms.
TEF6901A_3
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38 of 107
TEF6901A
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Integrated car radio
Table 40.
Charge pump source[1]
FREF2
FREF1
FREF0
LOINJ
Charge pump fref
current
0
0
0
X
CP1
100 kHz
0
0
1
X
CP2
50 kHz
0
1
0
X
CP3
25 kHz
0
1
1
1
CP3
20 kHz
0
1
1
0
CP4
20 kHz
1
0
0
X
CP5
10 kHz
1
0
1
X
reserved
1
1
0
X
reserved
1
1
1
X
reserved
[1]
X = don’t care.
8.2.7 Tuning overview
High injection LO (Europe FM, US FM and AM):
( f RF + 10.7 MHz ) × M
N = ---------------------------------------------------- with LOINJ = 0 to achieve full image suppression in FM.
f ref
Low injection LO (Japan FM and OIRT):
( f RF – 10.7 MHz ) × M
N = ---------------------------------------------------- with LOINJ = 1 to achieve full image suppression in FM.
f ref
f ref
tuning step = -----M
where: M is the divider ratio of the VCO frequency for AM mixer 1 and FM mixer 1
f VCO
M = --------------.
f mixer 1
Table 41.
Standard tuner settings
M
FREF[2:0]
fref
LOINJ
Tuning step
Europe FM and US FM 001
Broadcast band
BAND[2:0]
2
000
100 kHz
0
50 kHz
Japan FM
010
3
000
100 kHz
1
33.3 kHz
Eastern Europe FM
(OIRT FM)
010
3
011
20 kHz
1
6.67 kHz
AM MW and LW
111
20
011
20 kHz
0
1 kHz
AM SW 120 m to 60 m
110
16
100
10 kHz
0
0.625 kHz
AM SW 49 m to 22 m
101
10
100
10 kHz
0
1 kHz
AM SW 25 m to 15 m
100
8
100
10 kHz
0
1.25 kHz
AM SW 16 m to 11 m
011
6
100
10 kHz
0
1.67 kHz
TEF6901A_3
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39 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
8.2.8 Write mode: data byte LEVELALGN
Table 42.
LEVELALGN - format of data byte 06h with default setting
7
6
5
4
3
2
1
0
LST4
LST3
LST2
LST1
LST0
LSL2
LSL1
LSL0
1
0
0
0
0
1
0
0
Table 43.
LEVELALGN - data byte 06h bit description
Bit
Symbol
Description
7 to 3
LST[4:0]
level start voltage alignment
2 to 0
LSL[2:0]
level slope alignment
For I2C-bus reading of the level voltage and standard alignment see read data byte 1
(see Table 10).
Level alignment should begin with slope alignment (LSL): the level slope does not change
with level start alignment (LST) or broadcast band; therefore a single LSL alignment
setting can be used for all FM and AM band selections.
Level start may change between broadcast bands; therefore generally a separate LST
alignment and setting is used for every broadcast band.
8.2.9 Write mode: data byte IFCF
Table 44.
IFCF - format of data byte 07h with default setting
7
6
5
4
3
2
1
0
IFCFA
IFNBW
IFCF5
IFCF4
IFCF3
IFCF2
IFCF1
IFCF0
0
0
1
0
0
0
0
0
Table 45.
IFCF - data byte 07 bit description
Bit
Symbol
Description
7
IFCFA
FM IF filter align mode
0 = normal operation
1 = align mode (fast frequency settling)
6
IFNBW
FM IF filter narrow
0 = normal operation
1 = FM IF filter at minimum bandwidth (57 kHz)
5 to 0
IFCF[5:0]
FM IF filter center frequency alignment
8.2.10 Write mode: data byte IFCAP
Table 46.
IFCAP - format of data byte 08h with default setting
7
6
5
4
3
2
1
0
IFCAPA
0
0
0
IFCAP3
IFCAP2
IFCAP1
IFCAP0
1
0
0
0
0
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TEF6901A
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Table 47.
IFCAP - data byte 08h bit description
Bit
Symbol
Description
7
IFCAPA
FM IF filter capacitor align
0 = standard operation
1 = align mode and initialization mode (auto correct disabled)
6 to 4
-
reserved; 0 = normal operation
3 to 0
IFCAP[3:0]
IF filter capacitor. Setting of FM IF filter capacitor value by means of
bit IFCAPG of read data byte 5, ID; see Table 19 (For initialization set
IFCAPA = 1. For alignment set IFCAPA = 1 and check, when read bit
IFCAPG changes from logic 0 to logic 1).
The fully integrated IF2 filter of the TEF6901A has to be aligned in order to achieve the
optimum performance at all ambient conditions.
8.2.10.1
Factory alignment of bits IFCAP[3:0]
FM IF filter operation point alignment: data byte IFCAP: a single alignment of the FM IF
filter operation range secures an accurate and continuous frequency setting over the full
temperature range and all FM bands.
1. Set bit IFCAPA to logic 1 to disable internal IFCAP control
2. Decrease IFCAP from 15 downwards until I2C-bus read bit IFCAPG (read byte 5; ID)
changes from logic 1 to logic 0
3. Save this IFCAP setting as alignment value
4. Set bit IFCAPA to logic 0 to return to normal operation
8.2.10.2
Initialization of the radio
During radio initialization bit IFCAPA (is logic 1) is used for writing the stored IFCAP[3:0]
value. Afterwards set bit IFCAPA to a logic 0 to start normal operation. Writing of the
IFCAP byte with the alignment value is allowed during radio operation but requires a
setting of bit IFCAPA to logic 0.
8.2.10.3
Factory alignment of IFCF
FM IF filter center frequency alignment: data byte IFCF: to correct IF frequency errors
caused by an error in the crystal frequency the alignment is preferably performed for every
FM band in use. A test frequency in the center of the band is preferred. An accurate
alignment result is realized by testing for symmetrical filter attenuation.
1. Set RF generator level VRF = 200 µV
2. Set bit IFCFA to logic 1 to enable fast settling of the filter frequency
3. Set bit IFNBW to logic 1 for accuracy (filter is set to narrow 57 kHz bandwidth)
4. Test high side of filter curve: tune to fRF − 50 kHz (Europe/USA) or fRF + 33.3 kHz
(Japan/OIRT)
5. Change IFCF from 0 to 63 and note the level read result (level voltages)
6. Test low side of filter curve: tune to fRF + 50 kHz (Europe/USA) or fRF − 33.3 kHz
(Japan/OIRT)
7. Change IFCF from 0 to 63 and note the level voltages
8. Find the IFCF value where both level curves cross (lowest difference) and save this
IFCF value
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9. Set bits IFCFA and IFNBW to logic 0 to return to normal operation
The bits IFCFA and IFNBW are intended for factory alignment use only. Normal radio
operation requires a setting of bits IFCFA and IFNBW to logic 0.
8.2.11 Write mode: data byte ACD
Table 48.
7
ACD - format of data byte 09h with default setting
6
5
4
3
2
1
ACDLEV ACDLAP1 ACDLAP0 ACDBAL1 ACDBAL0 ACDWAM1 ACDWAM0
0
1
0
0
1
0
1
0
HCSFH
0
Table 49.
ACD - data byte 09h bit description
Bit
Symbol
Description
7
ACDLEV
level threshold; start level of threshold extension and latch protection
0 = start at LEV = 40 (VLEVEL = 0.88 V), normal operation
1 = start at LEV = 48 (VLEVEL = 1 V)
6 and 5
ACDLAP[1:0]
latch protection limit; protect against narrow bandwidth locking at high
modulation, low RF signal condition
00 = no protection
01 = low protection
10 = standard protection
11 = high protection
4 and 3
ACDBAL[1:0]
control balance; bandwidth control priority towards adjacent channel
(prevent breakthrough) or towards modulation (low distortion)
00 = high adjacent channel priority
01 = medium adjacent channel priority, standard operation
10 = medium modulation priority
11 = high modulation priority
2 and 1
ACDWAM[1:0] WAM threshold; desensitize bandwidth control at detection of WAM
00 = no desensitization on WAM
01 = low sensitivity
10 = medium sensitivity
11 = high sensitivity
0
HCSFH
HCC minimum bandwidth; combined control with bit HCSF;
see Table 57, Table 60 and Figure 26
0 = minimum bandwidth of high cut control is 2.2 kHz or 3.3 kHz
1 = minimum bandwidth of high cut control is 3.9 kHz or 5.6 kHz
8.2.12 Write mode: data byte SENSE
Table 50.
SENSE - format of data byte 0Ah with default setting
7
6
5
4
3
2
1
0
CSA3
CSA2
CSA1
CSA0
USS1
USS0
WAS1
WAS0
1
0
0
0
0
1
0
1
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TEF6901A
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Integrated car radio
Table 51.
SENSE - data byte 0Ah bit description
Bit
Symbol
Description
7 to 4
CSA[3:0]
alignment of FM stereo channel separation
3 and 2
USS[1:0]
USN sensitivity; USN weak signal control equivalent level
voltage/frequency deviation for weak signal processing; see Figure 24
00 = −0.06 V/kHz
01 = −0.08 V/kHz
10 = −0.12 V/kHz
11 = −0.16 V/kHz
1 and 0
WAS[1:0]
WAM sensitivity; WAM weak signal control equivalent level
voltage/VLEVEL (peak-to-peak) for weak signal processing; see Figure 24
00 = −7.5
01 = −10
10 = −15
11 = −20
The input control value for weak signal control derived from USN is denoted by Veq.LEVEL;
equivalent level voltage. This indicates a weak signal control amount equal to the weak
signal control generated by a certain VLEVEL voltage.
The USS setting does not influence the I2C-bus read quality information of USN; read
data byte 2, USN/WAM; see Table 12.
The input control value for weak signal control derived from WAM is denoted by Veq.LEVEL;
equivalent level voltage. This indicates a weak signal control amount equal to the weak
signal control generated by a certain VLEVEL voltage.
The WAS setting does not influence the I2C-bus read quality information of WAM; read
data byte 2, USN/WAM; see Table 12.
001aab831
4
001aab538
4
Veq. LEVEL
(V)
Veq. LEVEL
(V)
3
3
USS [1:0]
WAS [1:0]
2
2
11
10
01
00
11
0
0
I2C-bus:
USN = 0
a. MPX signal.
10
01
00
1
1
25
50
∆f (kHz)
75
15
0
0
I2C-bus:
WAM = 0
0.2
0.4
0.6
VLEVEL (V)
15
b. Level variation.
Fig 24. Weak signal control sensitivity versus MPX signal at 150 kHz (USN) and level variation at 21 kHz (WAM)
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8.2.13 Write mode: data byte TIMING
Table 52.
TIMING - format of data byte 0Bh with default setting
7
6
5
4
3
2
1
0
STC1
STC0
HTC2
HTC1
HTC0
MTC2
MTC1
MTC0
1
0
1
0
0
1
1
0
Table 53.
TIMING - data byte 0Bh bit description[1]
Bit
Symbol
Description
7 and 6
STC[1:0]
setting of the stereo noise control time constants; see Table 54
5 to 3
HTC[2:0]
setting of the high cut control time constants; see Table 55
2 to 0
MTC[2:0]
setting of the soft mute control time constants; see Table 56
[1]
During the tuning mute of the preset and search mode tuning action the time constants set by STC, HTC
and MTC change to tattack = 50 ms and trecovery = 50 ms to enable fast settling of the weak signal processing
to new conditions.
Table 54.
SNC weak signal processing control speed setting
STC1
STC0
tattack
trecovery
0
0
0.1 s
1.25 s
0
1
0.1 s
2.5 s
1
0
0.1 s
5s
1
1
0.1 s
10 s
Table 55.
HCC speed setting[1]
HTC2
HTC1
HTC0
tattack
trecovery
0
0
0
0.03 s
0.04 s
0
0
1
0.03 s
0.08 s
0
1
0
0.06 s
0.3 s
0
1
1
0.25 s
0.3 s
1
0
0
0.25 s
0.6 s
1
0
1
0.5 s
0.6 s
1
1
0
1s
1.25 s
1
1
1
1s
2.5 s
[1]
When for an external audio source VU-meter mode is enabled (bits AVUM or COMP are logic 1) the HTC
setting controls the trecovery VU-meter timing, tattack has a fixed value of 20 ms; see Table 99.
TEF6901A_3
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TEF6901A
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Integrated car radio
Table 56.
Soft mute weak signal processing control speed setting[1]
MTC2
MTC1
MTC0
tattack[2]
trecovery[3]
0
0
0
0.01 s
0.01 s
0
0
1
0.01 s
0.03 s
0
1
0
0.03 s
0.1 s
0
1
1
0.1 s
0.1 s
1
0
0
0.1 s
0.2 s
1
0
1
0.2 s
0.2 s
1
1
0
0.4 s
0.4 s
1
1
1
0.4 s
0.8 s
[1]
When for an external audio source dynamic compression is enabled (bit COMP is logic 1) the MTC setting
controls the trecovery compression timing, tattack has a fixed value of 20 ms; see Table 80.
[2]
The attack time is the time, which the weak signal processing needs to realize a full control change for a
level voltage change between HIGH level (where the weak signal processing is inactive) and 0.75 V level
voltage.
[3]
The recovery time is the time needed for the full control change when the level voltage rises from 0.75 V to
HIGH level.
8.2.14 Write mode: data byte SNC
Table 57.
SNC - format of data byte 0Ch with default setting
7
6
5
4
3
2
1
0
SST3
SST2
SST1
SST0
SSL1
SSL0
HCMP
HCSF
0
1
1
1
0
1
0
0
Table 58.
SNC - data byte 0Ch bit description
Bit
Symbol
Description
7 to 4
SST[3:0]
SNC start; start setting of the stereo noise control; see Table 59 and
Figure 25
3 and 2
SSL[1:0]
SNC slope; slope setting of the stereo noise control (αsep / Veq.LEVEL);
see Figure 25
00 = 38 dB/V
01 = 51 dB/V
10 = 63 dB/V
11 = 72 dB/V
1
HCMP
HCC control source
0 = high cut control is only controlled by the level information
1 = high cut control is controlled by level, USN and WAM
0
HCSF
HCC minimum bandwidth; combined control with bit HCSFH;
see Table 49, Table 60 and Figure 26
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TEF6901A
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Integrated car radio
Table 59.
Start of stereo noise control weak signal processing
SST3
SST2
SST1
SST0
Stereo noise control start (Veq.LEVEL)
0
0
0
0
1.88 V
0
0
0
1
1.94 V
0
0
1
0
2.00 V
0
0
1
1
2.06 V
0
1
0
0
2.13 V
0
1
0
1
2.19 V
0
1
1
0
2.25 V
0
1
1
1
2.31 V
1
0
0
0
2.38 V
1
0
0
1
2.44 V
1
0
1
0
2.5 V
1
0
1
1
2.56 V
1
1
0
0
2.63 V
1
1
0
1
2.69 V
1
1
1
0
2.75 V
1
1
1
1
2.81 V
Table 60.
HCC minimum bandwidth
HCSFH
HCSF
High cut control minimum bandwidth
0
0
2.2 kHz
0
1
3.3 kHz
1
0
3.9 kHz
1
1
5.6 kHz
TEF6901A_3
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46 of 107
TEF6901A
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Integrated car radio
001aab493
40
001aab539
40
αcs
(dB)
αcs
(dB)
30
30
20
20
SST[3:0]
SSL[1:0]
10
10
0000
0111
1000
1111
00
0
0.5
1
1.5
2
0
0.5
2.5
3
Veq. LEVEL (V)
SSL = 63 dB/V.
1
1.5
01
10
11
2
2.5
3
Veq. LEVEL (V)
SST = 2.5 V.
a. Start.
b. Slope.
Fig 25. SNC start and slope settings versus equivalent level voltage; SNC detector (level, USN and WAM), USN
detector and WAM detector
8.2.15 Write mode: data byte HIGHCUT
Table 61.
HIGHCUT - format of data byte 0Dh with default setting
7
6
5
4
3
2
1
0
HST2
HST1
HST0
HSL1
HSL0
HCF2
HCF1
HCF0
0
1
1
0
1
1
1
1
Table 62.
HIGHCUT - data byte 0Dh bit description
Bit
Symbol
Description
7 to 5
HST[2:0]
HCC start; start setting of the high cut control; see Table 63 and Figure 26
4 and 3
HSL[1:0]
HCC slope; slope setting of the high cut control (α10 kHz / Veq.LEVEL); see Figure 26
00 = 9 dB/V
01 = 11 dB/V
10 = 14 dB/V
11 = 18 dB/V
2 to 0
HCF[2:0]
HCC maximum bandwidth; setting of the fixed high cut control; see Table 64, Figure 26 and
Figure 27
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TEF6901A
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Integrated car radio
Table 63.
Start of high cut control weak signal processing
HST2
HST1
HST0
High cut control start (Veq.LEVEL)
0
0
0
1.5 V
0
0
1
1.75 V
0
1
0
2.0 V
0
1
1
2.25 V
1
0
0
2.5 V
1
0
1
3.0 V
1
1
0
3.5 V
1
1
1
4.0 V
Table 64.
Fixed high cut settings
HCF2
HCF1
HCF0
Fixed high cut; HCC Bmax
0
0
0
reserved
0
0
1
2 kHz
0
1
0
3 kHz
0
1
1
5 kHz
1
0
0
7 kHz
1
0
1
10 kHz
1
1
0
wide bandwidth
1
1
1
full bandwidth
TEF6901A_3
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48 of 107
TEF6901A
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Integrated car radio
001aab597
0
α10 kHz
(dB)
3
6
full bandwidth
0
HST[2:0]
α10 kHz
(dB)
wide bandwidth
3
000
001
010
011
10
B
(kHz)
7
(1)
6
5
(2)
9
100
101
110
9
111
(3)
3
HSL[1:0]
00
01 10
11
12
12
(4)
15
0.5
1.5
2.5
2
15
0.5
3.5
1.5
Veq.LEVEL (V)
HCF = 111, HCSF = 0, HCSFH = 0, HSL = 10.
Veq.LEVEL (V)
2.5
001aad655
HST = 100.
(1) HCSFH = 1; HCSF = 1; Bmin = 5.6 kHz.
(2) HCSFH = 1; HCSF = 0; Bmin = 3.9 kHz.
(3) HCSFH = 0; HCSF = 1; Bmin = 3.3 kHz.
(4) HCSFH = 0; HCSF = 0; Bmin = 2.2 kHz.
a. Start.
b. Slope and minimum bandwidth.
Fig 26. High cut control start and slope settings versus equivalent level voltage; HCC detector (HCMP = 0 for level
or HCMP = 1 for level, WAM and USN)
001aab542
8
gain
(dB)
HCF[2:0]
111
0
110
101
−8
100
011
−16
010
001
−24
10−2
10−1
1
102
10
f (kHz)
Fig 27. Fixed high cut setting characteristics
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8.2.16 Write mode: data byte SOFTMUTE
Table 65.
SOFTMUTE - format of data byte 0Eh with default setting
7
6
5
4
3
2
1
0
MST2
MST1
MST0
MSL1
MSL0
UMD1
UMD0
MSLE
0
1
1
0
1
0
1
0
Table 66.
SOFTMUTE - data byte 0Eh bit description
Bit
Symbol
Description
7 to 5
MST[2:0]
soft mute start; start setting of the soft mute; for FM see Table 67 and
Figure 28; for AM see Table 68 and Figure 29
4 and 3
MSL[1:0]
soft mute slope[1]; slope setting of the soft mute (α10 kHz / Veq.LEVEL); for
FM see Table 69 and Figure 28; for AM see Table 70 and Figure 29
2 and 1
UMD[1:0]
USN soft mute depth; setting of the maximum attenuation of the USN fast
soft mute control; see Figure 30
00 = 3 dB
01 = 6 dB
10 = 9 dB
11 = 12 dB
0
[1]
MSLE
soft mute slope extension; additional slope setting of the soft mute; for
FM see Table 69 and Figure 28; for AM see Table 70 and Figure 29
When for an external audio source dynamic compression is enabled (bit COMP is logic 1) the MSL setting
controls the compression ratio. For default 2 : 1 compression MSL = 01 is used; see Table 82.
Table 67.
Start of soft mute control weak signal processing; FM mode[1]
MST2
MST1
MST0
Soft mute control start (Veq.LEVEL)
0
0
0
0.88 V
0
0
1
1.0 V
0
1
0
1.12 V
0
1
1
1.25 V
1
0
0
1.38 V
1
0
1
0.75 V
1
1
0
0.81 V
1
1
1
0.94 V
[1]
When for an external audio source dynamic compression is enabled (COMP = 1) the MST setting controls
the compression range. For default full compression MST = 7 is used; see Table 81.
TEF6901A_3
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Table 68.
Start of soft mute control weak signal processing; AM mode[1]
MST2
MST1
MST0
Soft mute control start (Veq.LEVEL)
0
0
0
1.5 V
0
0
1
1.75 V
0
1
0
2.0 V
0
1
1
1.25 V
1
0
0
1.38 V
1
0
1
1.62 V
1
1
0
1.88 V
1
1
1
2.12 V
[1]
When for an external audio source dynamic compression is enabled (COMP = 1) the MST setting controls
the compression range. For default full compression MST = 7 is used; see Table 81.
Table 69.
Slope of soft mute control weak signal processing; FM mode[1]
MSLE
MSL1
MSL0
Soft mute control slope (αAF / Veq.LEVEL)
0
0
0
8 dB/V
0
0
1
16 dB/V
0
1
0
24 dB/V
0
1
1
32 dB/V
1
0
0
40 dB/V
1
0
1
48 dB/V
1
1
0
reserved
1
1
1
reserved
[1]
When for an external audio source dynamic compression is enabled (COMP = 1) the MSL setting controls
the compression range. For default 2 : 1 compression MSL = 1 is used; see Table 82.
Table 70.
Slope of soft mute control weak signal processing; AM mode[1]
MSL1
MSL0
MSLE
Soft mute control slope (αAF / Veq.LEVEL)
0
0
0
8 dB/V
0
0
1
12 dB/V
0
1
0
16 dB/V
0
1
1
20 dB/V
1
0
0
24 dB/V
1
0
1
28 dB/V
1
1
0
32 dB/V
1
1
1
36 dB/V
[1]
When for an external audio source dynamic compression is enabled (COMP = 1) the MSL setting controls
the compression range. For default 2 : 1 compression MSL = 1 is used; see Table 82.
TEF6901A_3
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51 of 107
TEF6901A
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Integrated car radio
001aad656
0
αmute
(dB)
(0)
αmute
(dB)
MST[2:0]
12
(1)
6
101
110
000
111
001
010
011
100
24
(2)
(3)
12
(0E)
(1E)
36
48
0.5
001aad658
0
18
1.0
MSL[1:0] = 11.
1.5
2.0
2.5
Veq.LEVEL (V)
24
0.5
0.75
1.0
1.25
1.5
Veq.LEVEL (V)
MST[2:0] = 000.
(0) MSLE = 0; MSL[1:0] = 00.
(1) MSLE = 0; MSL[1:0] = 01.
(2) MSLE = 0; MSL[1:0] = 10.
(3) MSLE = 0; MSL[1:0] = 11.
(0E) MSLE = 1; MSL[1:0] = 00.
(1E) MSLE = 1; MSL[1:0] = 01.
a. Start.
b. Slope.
Fig 28. Soft mute start and slope settings versus equivalent level voltage (FM mode)
TEF6901A_3
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52 of 107
TEF6901A
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Integrated car radio
001aad657
0
αmute
(dB)
001aad659
0
αmute
(dB)
MST[2:0]
12
(0)
6
(0E)
(1)
011
100
000
101
001
110
010
111
24
36
12
(1E)
(2)
18
(2E)
(3)
48
0.5
1.0
1.5
24
0.5
2.0
2.5
Veq.LEVEL (V)
MSL[1:0] = 11.
(3E)
0.75
1.0
1.25
1.5
Veq.LEVEL (V)
MST[2:0] = 011.
(0) MSL[1:0] = 00; MSLE = 0.
(0E) MSL[1:0] = 00; MSLE = 1.
(1) MSL[1:0] = 01; MSLE = 0.
(1E) MSL[1:0] = 01; MSLE = 1.
(2) MSL[1:0] = 10; MSLE = 0.
(2E) MSL[1:0] = 10; MSLE = 1.
(3) MSL[1:0] = 11; MSLE = 0.
(3E) MSL[1:0] = 11; MSLE = 1.
a. Start.
b. Slope.
Fig 29. Soft mute start and slope settings versus equivalent level voltage (AM mode)
001aab544
0
αmute
(dB)
6
00
01
10
12
11
UMD[1:0]
18
0.5
0.75
1
1.25
1.5
Veq.LEVEL (V)
MST[2:0] = 011, MSL[1:0] = 10.
Fig 30. USN soft mute depth settings; USN detector
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
53 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
8.2.17 Write mode: data byte RADIO
Table 71.
RADIO - format of data byte 0Fh with default setting
7
6
5
4
3
2
1
0
0
MONO
DEMP
RDCL
NBS1
NBS0
NBL1
NBL0
0
0
1
1
0
1
0
Table 72.
RADIO - data byte 0Fh bit description
Bit
Symbol
Description
7
-
reserved; 0 = normal operation
6
MONO
FM forced mono; stereo decoder disable option
0 = stereo decoder is set to FM stereo
1 = stereo decoder is set to FM mono
5
DEMP
de-emphasis; selection of the de-emphasis time constant; see Figure 31
0 = de-emphasis is 75 µs
1 = de-emphasis is 50 µs
4
RDCL
RDS output mode
0 = direct output mode; clock output and data output; see Figure 32
1 = buffered output mode; clock input and data output of 16-bit data
buffer and optional 3-bit demodulation quality (RDQ counter); see
Figure 33
3 and 2
NBS[1:0]
noise blanker audio sensitivity
FM audio noise blanker sensitivity setting of FM MPX ignition noise
detector (peak value)
00 = 65 mV (high sensitivity)
01 = 100 mV
10 = 125 mV
11 = 160 mV (low sensitivity)
AM audio noise blanker sensitivity setting of audio ignition noise detector
00 = 16.5 V/ms
01 = 18.6 V/ms
10 = 21 V/ms
11 = 23.5 V/ms
1 and 0
NBL[1:0]
noise blanker IF or level sensitivity
FM audio noise blanker sensitivity setting of FM level ignition noise
detector (peak value)
00 = 10 mV
01 = 25 mV
10 = 36 mV
11 = 50 mV
AM IF noise blanker sensitivity setting of IF ignition noise detector
00 = 1.4 V (low sensitivity)
01 = 1 V
10 = 0.7 V (high sensitivity)
11 = AM IF noise blanker disabled
TEF6901A_3
Product data sheet
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Rev. 03 — 20 March 2008
54 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
001aab545
8
gain
(dB)
0
DEMP
−8
1
−16
0
−24
10−2
10−1
1
102
10
f (kHz)
Fig 31. De-emphasis setting characteristics
RDDA output
RDCL output
4 µs
> 400 µs
bit slip
(as may occur at
poor reception)
4 µs
> 400 µs
001aab546
This mode is compatible with e.g. SAA6579, SAA6581, SAA770xH and TEF6890H.
Fig 32. RDS demodulator direct output mode (RDCL = 0); RDCL clock is output
TEF6901A_3
Product data sheet
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55 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
RDDA output
data
available
D15
D14
D13
D1
D0
RDCL input
1
2
3
15
001aab547
16
a. The controlling microprocessor generates 16 clock pulses for output of 16 bits of buffered
RDS data. This mode use is compatible with e.g. SAA770xH and TEF6890H.
RDDA output
data
available
D15
D1
D0
Q2
Q1
Q0
RDCL input
1
15
16
17
18
19
20
001aab548
b. The controlling microprocessor generates 20 clock pulses for output of 16 bits of buffered
RDS data, a separator bit (logic 1) and 3 bits of RDQ bit quality counter information.
RDQ: 111 = good reception, 000 = poor or no reception. RDQ counter decrements on
each bad quality data bit.
Fig 33. RDS demodulator buffered output mode (RDCL = 1); RDCL clock is input
8.2.18 Write mode: data byte INPUT
Table 73.
INPUT - format of data byte 10h with default setting
7
6
5
4
3
2
1
0
INP3
INP2
INP1
INP0
ING3
ING2
ING1
ING0
0
0
0
0
1
0
1
0
Table 74.
INPUT - data byte 10h bit description
Bit
Symbol
Description
7 to 4
INP[3:0]
input selection; selection of the audio source for the tone/volume part;
see Table 75
3 to 0
ING[3:0]
Input gain; −10 dB to +18 dB input gain. The ING input gain setting is
added to the VOL volume setting to define the actual volume control;
see Table 76.
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
56 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 75.
Input select
INP3
INP2
INP1
INP0
Audio source for tone/volume processing
0
0
0
0
radio
0
0
0
1
stereo with Common Mode Rejection (CMR) (pins INAL,
INAR and INAC)
0
0
1
0
stereo (pins INBL and INBR)
0
0
1
1
mono symmetrical or mono with CMR (pins INC and IND)
0
1
0
0
stereo (pins INC and IND)
0
1
0
1
mono (pin INC)
0
1
1
0
mono (pin IND)
0
1
1
1
stereo with CMR (pins INBL, INBR and INC)
1
0
0
0
stereo symmetrical (pins INBL, INBR, INC and IND)
1
0
0
1
stereo (pins INAL and INAR)
1
0
1
0
mono (pin INAC)
1
0
1
1
reserved
1
1
0
0
reserved
1
1
0
1
reserved
1
1
1
0
reserved
1
1
1
1
reserved
Table 76.
Input gain setting
ING3
ING2
ING1
ING0
Input gain control
1
0
1
1
−10 dB[1]
1
1
0
0
−8 dB
1
1
0
1
−6 dB
1
1
1
0
−4 dB
1
1
1
1
−2 dB
0
0
0
0
0 dB
0
0
0
1
2 dB
0
0
1
0
4 dB
0
0
1
1
6 dB
0
1
0
0
8 dB
0
1
0
1
10 dB[1]
0
1
1
0
12 dB[1]
0
1
1
1
14 dB[1]
1
0
0
0
16 dB[1]
1
0
0
1
18 dB[1]
1
0
1
0
mute
[1]
The input gain setting ING and the volume setting VOL define the overall volume. The overall range is
limited to −83 dB to +26 dB. For overall values > +28 dB the actual gain is +28 dB. For overall values
< −83 dB the circuit is muted.
TEF6901A_3
Product data sheet
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Rev. 03 — 20 March 2008
57 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 77.
INP[3:0]
Input select pin use and suggested combinations of input sources[1]
Input pin use
INAL
INAR
INAC
L
R
GND
INBL
INBR
INC
0010
L
R
0011
M−
M+
0100
L−
R−
0101
M−
0110
1000
1001
L
R
GND
L+
R+
L−
x x x x x x x x x
x x x x x
stereo
x x x
x x x
mono symmetrical
x
x
x
x
mono
x
x
mono
x x
x
stereo CMR
R−
x
stereo symmetrical
R
1010
[1]
L
radio
stereo CMR
stereo
M
0111
Source combinations
IND
0000
0001
Audio source
M−
x x
stereo
x x x x
mono
x x x x
M−, L− and R− indicate inverted polarity of audio signal.
8.2.19 Write mode: data byte VOLUME
Table 78.
VOLUME - format of data byte 11h with default setting
7
6
5
4
3
2
1
0
COMP
VOL6
VOL5
VOL4
VOL3
VOL2
VOL1
VOL0
0
0
1
1
0
0
0
0
Table 79.
VOLUME - data byte 11h bit description
Bit
Symbol
Description
7
COMP
dynamic compression[1]; see Figure 36
0 = compression is disabled (standard use)
1 = dynamic compression is enabled
6 to 0
[1]
VOL[6:0]
volume setting (see Table 83); for balance control see data byte 16h (see Table 94), for
loudness control see data byte 17h (see Table 97)
Dynamic compression can be used with external sources only. When dynamic compression is active, the radio quality detection of USN,
MOD and offset is limited to AF update tuning only. For dynamic compression the bits MOD[4:0] indicate the external source input
amplitude as in the VU-meter mode; AVUM; data byte 17h (see Table 97). The FM dynamic bandwidth control is disabled and a fixed
bandwidth of 113 kHz is defined. However, other fixed bandwidth settings are available by DYN = 0 and the setting of BW; data byte 0h
(see Table 28). The compression recovery timing is controlled by data byte 0Bh; TIMING (see Table 80). Compression start and slope
are controlled by data byte 0Eh; SOFTMUTE (see Table 81 and Table 82). Standard compression requires a setting of MST = 7 and
MSL = 1.
TEF6901A_3
Product data sheet
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Rev. 03 — 20 March 2008
58 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 80.
Dynamic compression timing; MTC[2:0] of data byte 0Bh; TIMING[1]
MTC2
MTC1
MTC0
tattack
trecovery
0
0
0
0.02 s
0.03 s
0
0
1
0.02 s
0.06 s
0
1
0
0.02 s
0.2 s
0
1
1
0.02 s
5s
1
0
0
0.02 s
0.6 s
1
0
1
0.02 s
10 s
1
1
0
0.02 s
1s
1
1
1
0.02 s
2s
[1]
Setting MTC is also in use for setting the timing of weak signal soft mute control during radio operation.
Table 81.
Dynamic compression start; MST[2:0] of data byte 0Eh; SOFTMUTE[1]
MST2
MST1
MST0
Compression range
0
0
0
reserved
0
0
1
reserved
0
1
0
reserved
0
1
1
start = 4 dBV; 2 : 1 range = 2 dB
1
0
0
start = −4 dBV; 2 : 1 range = 6 dB
1
0
1
start = −12 dBV; 2 : 1 range = 10 dB
1
1
0
start = −20 dBV; 2 : 1 range = 14 dB
1
1
1
start = −34 dBV; full range (2 : 1 = 18 dB)
[1]
Setting MST is also in use for setting the start of weak signal soft mute control during radio operation.
Table 82.
Dynamic compression slope; MSL[1:0] of data byte 0Eh; SOFTMUTE[1]
MSL1
MSL0
Compression ratio
0
0
4 : 3; full range = 9 dB
0
1
standard compression (2 : 1); full range = 18 dB
1
0
4 : 1; full range = 27 dB
1
1
limiting; full range = 36 dB
[1]
Setting MSL is also in use for setting the slope of weak signal soft mute control during radio operation.
TEF6901A_3
Product data sheet
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Rev. 03 — 20 March 2008
59 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
∆ volume
(dB)
0
(6, 1)
(4, 1)
(7, 0)
(7, 1)
(7, 2)
(7, 3)
−10
−20
−60
(5, 1)
−50
−40
−30
−20
−10
(3, 0)
(3, 1)
(3, 2)
(3, 3)
0
6
line input (dBV)
001aac443
1 V = 0 dBV, (MST, MSL) control.
Fig 34. Dynamic compression volume control; non-standard characteristics
>1:1
40 dB
∆ volume
(dB)
0
24 dB
18
12 dB
dB
−10
−20
−60
2:1
−50
−40
−30
−20
−10
0
6
line input (dBV)
001aab835
1 V = 0 dBV, MST = 7 (MST[2:0] = 111), MSL = 1 (MSL[1:0] = 01).
Fig 35. Dynamic compression volume control; typical setting
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
60 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
001aab549
0
line output
(dBV)
−20
−40
−60
COMP = 1;
VOL = −5 dB
15 dB
−80
−60
COMP = 0;
VOL = −20 dB
−40
−20
0 +6
20
line input (dBV)
1 V = 0 dBV.
Dynamic compression is realized by attenuation of the volume setting. To match the audio
amplitudes with and without compression a higher volume (VOL) setting should be selected
when compression is activated. The VOL correction value used defines the positioning of the
compression characteristic high signal attenuation and low signal amplification.
In this example: COMP = 0: VOL = ‘user volume’; COMP = 1: VOL = ‘user volume’ + 15.
Fig 36. Example of input to output compression
Table 83.
Volume setting
VOL6
VOL5
VOL4
VOL3
VOL2
VOL1
VOL0
Volume (dB)
0
0
0
0
0
0
0
28[1]
0
0
0
0
0
0
1
27[1]
0
0
0
0
0
1
0
26[1]
0
0
0
0
0
1
1
25[1]
0
0
0
0
1
0
0
24[1]
0
0
0
0
1
0
1
23[1]
0
0
0
0
1
1
0
22[1]
0
0
0
0
1
1
1
21[1]
0
0
0
1
0
0
0
20[1]
0
0
0
1
0
0
1
19[1]
0
0
0
1
0
1
0
18[1]
0
0
0
1
0
1
1
17[1]
0
0
0
1
1
0
0
16[1]
0
0
0
1
1
0
1
15[1]
0
0
0
1
1
1
0
14[1]
0
0
0
1
1
1
1
13[1]
0
0
1
0
0
0
0
12[1]
0
0
1
0
0
0
1
11[1]
0
0
1
0
0
1
0
10
0
0
1
0
0
1
1
9
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
61 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 83.
Volume setting …continued
VOL6
VOL5
VOL4
VOL3
VOL2
VOL1
VOL0
Volume (dB)
0
0
1
0
1
0
0
8
0
0
1
0
1
0
1
7
0
0
1
0
1
1
0
6
0
0
1
0
1
1
1
5
0
0
1
1
0
0
0
4
0
0
1
1
0
0
1
3
0
0
1
1
0
1
0
2
0
0
1
1
0
1
1
1
0
0
1
1
1
0
0
0
0
0
1
1
1
0
1
−1
0
0
1
1
1
1
0
−2
0
0
1
1
1
1
1
−3
0
1
0
0
0
0
0
−4
0
1
0
0
0
0
1
−5
0
1
0
0
0
1
0
−6
0
1
0
0
0
1
1
−7
0
1
0
0
1
0
0
−8
0
1
0
0
1
0
1
−9
0
1
0
0
1
1
0
−10
0
1
0
0
1
1
1
−11
0
1
0
1
0
0
0
−12
0
1
0
1
0
0
1
−13
0
1
0
1
0
1
0
−14
0
1
0
1
0
1
1
−15
0
1
0
1
1
0
0
−16
0
1
0
1
1
0
1
−17
0
1
0
1
1
1
0
−18
0
1
0
1
1
1
1
−19
0
1
1
0
0
0
0
−20
0
1
1
0
0
0
1
−21
0
1
1
0
0
1
0
−22
0
1
1
0
0
1
1
−23
0
1
1
0
1
0
0
−24
0
1
1
0
1
0
1
−25
0
1
1
0
1
1
0
−26
0
1
1
0
1
1
1
−27
0
1
1
1
0
0
0
−28
0
1
1
1
0
0
1
−29
0
1
1
1
0
1
0
−30
0
1
1
1
0
1
1
−31
0
1
1
1
1
0
0
−32
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
62 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 83.
Volume setting …continued
VOL6
VOL5
VOL4
VOL3
VOL2
VOL1
VOL0
Volume (dB)
0
1
1
1
1
0
1
−33
0
1
1
1
1
1
0
−34
0
1
1
1
1
1
1
−35
1
0
0
0
0
0
0
−36
1
0
0
0
0
0
1
−37
1
0
0
0
0
1
0
−38
1
0
0
0
0
1
1
−39
1
0
0
0
1
0
0
−40
1
0
0
0
1
0
1
−41
1
0
0
0
1
1
0
−42
1
0
0
0
1
1
1
−43
1
0
0
1
0
0
0
−44
1
0
0
1
0
0
1
−45
1
0
0
1
0
1
0
−46
1
0
0
1
0
1
1
−47
1
0
0
1
1
0
0
−48
1
0
0
1
1
0
1
−49
1
0
0
1
1
1
0
−50
1
0
0
1
1
1
1
−51
1
0
1
0
0
0
0
−52
1
0
1
0
0
0
1
−53
1
0
1
0
0
1
0
−54
1
0
1
0
0
1
1
−55
1
0
1
0
1
0
0
−56
1
0
1
0
1
0
1
−57[2]
1
0
1
0
1
1
0
−58[2]
1
0
1
0
1
1
1
−59[2]
1
0
1
1
0
0
0
−60[2]
1
0
1
1
0
0
1
−61[2]
1
0
1
1
0
1
0
−62[2]
1
0
1
1
0
1
1
−63[2]
1
0
1
1
1
0
0
−64[2]
1
0
1
1
1
0
1
−65[2]
1
0
1
1
1
1
0
−66[2]
1
0
1
1
1
1
1
−67[2]
1
1
0
0
0
0
0
−68[2]
1
1
0
0
0
0
1
−69[2]
1
1
0
0
0
1
0
−70[2]
1
1
0
0
0
1
1
−71[2]
1
1
0
0
1
0
0
−72[2]
1
1
0
0
1
0
1
−73[2]
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
63 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 83.
Volume setting …continued
VOL6
VOL5
VOL4
VOL3
VOL2
VOL1
VOL0
Volume (dB)
1
1
0
0
1
1
0
−74[1][2]
1
1
0
0
1
1
1
−75[1][2]
1
1
0
1
0
0
0
−76[1][2]
1
1
0
1
0
0
1
−77[1][2]
1
1
0
1
0
1
0
−78[1][2]
1
1
0
1
0
1
1
−79[1][2]
1
1
0
1
1
0
0
−80[1][2]
1
1
0
1
1
0
1
−81[1][2]
1
1
0
1
1
1
0
−82[1][2]
1
1
0
1
1
1
1
−83[1][2]
1
1
1
0
0
0
0
−84[1][2]
1
1
1
0
0
0
1
−85[1][2]
1
1
1
0
0
1
0
−86[1][2]
1
1
1
0
0
1
1
−87[1][2]
1
1
1
0
1
0
0
−88[1][2]
1
1
1
0
1
0
1
−89[1][2]
1
1
1
0
1
1
0
−90[1][2]
1
1
1
0
1
1
1
−91[1][2]
1
1
1
1
0
0
0
−92[1][2]
1
1
1
1
0
0
1
−93[1][2]
1
1
1
1
0
1
0
−94[1][2]
1
1
1
1
0
1
1
−95[1][2]
1
1
1
1
1
0
0
−96[1][2]
1
1
1
1
1
0
1
−97[1][2]
1
1
1
1
1
1
0
−98[1][2]
1
1
1
1
1
1
1
mute
[1]
The overall gain is the sum of the input gain setting ING[3:0] and the volume setting VOL[6:0].
The overall gain has a range of +28 dB to −83 dB.
For ING + VOL > 28 dB the overall gain is 28 dB.
For ING + VOL < −83 dB the mute is active.
[2]
For overall gain values below −75 dB (ING + VOL < −75 dB) the gain steps have a monotonous sequence.
The values of gain set error, gain step error and gain tracking error are not specified. The minimum gain
value is determined by the mute value.
TEF6901A_3
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TEF6901A
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8.2.20 Write mode: data byte TREBLE
Table 84.
TREBLE - format of data byte 12h with default setting
7
6
5
4
3
2
1
0
0
TRE2
TRE1
TRE0
TREM
TRF1
TRF0
0
0
0
0
1
1
0
Table 85.
TREBLE - data byte 12h bit description
Bit
Symbol
Description
7
-
reserved; 0 = normal operation
6 to 4
TRE[2:0]
treble setting; treble amplification or gain setting; see Table 86 and
Figure 37
3
TREM
treble control mode; treble control of attenuation or gain; see Table 86
0 = treble mode is set to attenuation
1 = treble mode is set to gain
2 and 1
TRF[1:0]
treble frequency
00 = 8 kHz
01 = 10 kHz
10 = 12 kHz
11 = 15 kHz
0
-
Table 86.
Treble control setting
TRE2
reserved; 0 = normal operation
TRE1
TRE0
Treble control
0
0
0
0 dB
0
0
1
−2 dB
0
1
0
−4 dB
0
1
1
−6 dB
1
0
0
−8 dB
1
0
1
−10 dB
1
1
0
−12 dB
1
1
1
−14 dB
0
0
0
0 dB
0
0
1
2 dB
0
1
0
4 dB
0
1
1
6 dB
1
0
0
8 dB
1
0
1
10 dB
1
1
0
12 dB
1
1
1
14 dB
TREM = 0
TREM = 1
TEF6901A_3
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TEF6901A
NXP Semiconductors
Integrated car radio
001aab550
16
gain
(dB)
8
0
−8
−16
10−2
10−1
1
10
faudio (kHz)
Fig 37. Treble amplitude control characteristics; treble frequency (TRF) = 10 kHz
8.2.21 Write mode: data byte BASS
Table 87.
BASS - format of data byte 13h with default setting
7
6
5
4
3
2
1
0
BAS3
BAS2
BAS1
BAS0
BASM
BAF1
BAF0
0
0
0
0
0
1
1
0
Table 88.
BASS - data byte 13h bit description
Bit
Symbol
Description
7 to 4
BAS[3:0]
bass setting; bass amplification or gain setting; see Table 89 and Figure 38
3
BASM
bass control mode; bass control of attenuation or gain; see Table 89
0 = bass mode is set to attenuation
1 = bass mode is set to gain
2 and 1
BAF[1:0]
bass frequency
00 = 60 Hz
01 = 80 Hz
10 = 100 Hz
11 = 120 Hz
0
-
reserved; 0 = normal operation
TEF6901A_3
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TEF6901A
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Integrated car radio
Table 89.
Bass control setting
BAS3
BAS2
BAS1
BAS0
Bass control
0
0
0
0
0 dB
0
0
0
1
−2 dB
0
0
1
0
−4 dB
0
0
1
1
−6 dB
0
1
0
0
−8 dB
0
1
0
1
−10 dB
0
1
1
0
−12 dB
0
1
1
1
−14 dB
1
0
0
1
−16 dB
1
0
1
0
−18 dB
1
0
1
1
−20 dB
0
0
0
0
0 dB
0
0
0
1
2 dB
0
0
1
0
4 dB
0
0
1
1
6 dB
0
1
0
0
8 dB
0
1
0
1
10 dB
0
1
1
0
12 dB
0
1
1
1
14 dB
1
0
0
1
16 dB
1
0
1
0
18 dB
1
0
1
1
20 dB
BASM = 0
BASM = 1
001aab551
16
Gbass
(dB)
8
0
−8
−16
10−1
1
102
10
faudio (kHz)
Fig 38. Bass amplitude control characteristics; bass frequency (BAF) = 60 Hz
TEF6901A_3
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TEF6901A
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Integrated car radio
8.2.22 Write mode: data byte FADER
Table 90.
FADER - format of data byte 14h with default setting
7
6
5
4
3
2
1
0
FADM1
FADM0
FAD5
FAD4
FAD3
FAD2
FAD1
FAD0
0
0
0
0
0
0
0
0
Table 91.
FADER - data byte 14h bit description
Bit
Symbol
Description
7 and 6
FADM[1:0] fader mode; enable fader control for front or rear
00 = no fader; front output = 0 dB; rear output = 0 dB
01 = rear fader; front output = 0 dB; rear output = FAD[5:0]
10 = front fader; front output = FAD[5:0]; rear output = 0 dB
11 = output volume; front output = FAD[5:0]; rear output = FAD[5:0]
5 to 0
FAD[5:0]
Fader attenuation setting; 00 0000 to 11 1111 = −1 dB to −64 dB. For
output mute control see data byte 15h; OUTPUT (see Table 92).
8.2.23 Write mode: data byte OUTPUT
Table 92.
OUTPUT - format of data byte 15h with default setting
7
6
5
4
3
2
1
0
0
0
0
OUTA
MULF
MURF
MULR
MURR
0
1
1
1
1
Table 93.
OUTPUT - data byte 15h bit description
Bit
Symbol
Description
7 to 5
-
reserved; 0 = normal operation
4
OUTA
output gain
0 = standard output gain
1 = output gain is 3 dB
3
MULF
left front output mute
0 = output LFOUT is enabled
1 = output LFOUT is muted
2
MURF
right front output mute
0 = output RFOUT is enabled
1 = output RFOUT is muted
1
MULR
left rear output mute
0 = output LROUT is enabled
1 = output LROUT is muted
0
MURR
right rear output mute
0 = output RROUT is enabled
1 = output RROUT is muted
TEF6901A_3
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Integrated car radio
8.2.24 Write mode: data byte BALANCE
Table 94.
BALANCE - format of data byte 16h with default setting
7
6
5
4
3
2
1
0
BALM
BAL6
BAL5
BAL4
BAL3
BAL2
BAL1
BAL0
1
0
0
0
0
0
0
0
Table 95.
BALANCE - data byte 16h bit description
Bit
Symbol
Description
7
BALM
balance control mode; sets the balance mode to left or right attenuation
0 = left channel is attenuated
1 = right channel is attenuated
6 to 0
Table 96.
BAL[6:0]
balance setting; see Table 96
Balance attenuation setting[1]
BAL6
BAL5
BAL4
BAL3
BAL2
BAL1
BAL0
Balance
(dB)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
−1
:
:
:
:
:
:
:
:
1
1
0
1
1
1
0
−110
1
1
0
1
1
1
1
−111
1
1
1
0
0
0
0
mute
The maximum obtainable attenuation of volume and balance is limited to −83 dB. For VOL + BAL
attenuation settings below −83 dB; mute is activated.
[1]
8.2.25 Write mode: data byte LOUDNESS
Table 97.
LOUDNESS - format of data byte 17h with default setting
7
6
5
4
3
2
1
0
AVUM
0
0
LDON
LDHB
LDS2
LDS1
LDS0
0
1
1
0
0
0
Table 98.
LOUDNESS - data byte 17h bit description
Bit
Symbol
Description
7
AVUM
audio VU-meter mode[1]
0 = MOD read information indicates the modulation of the radio
channel
1 and an external input source is selected = MOD read information will
indicate the input amplitude of the selected source
6 and 5
-
reserved; 0 = normal operation
4
LDON
loudness on
0 = loudness control is disabled
1 = loudness control is active; loudness is controlled by the volume
setting
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Integrated car radio
Table 98.
LOUDNESS - data byte 17h bit description …continued
Bit
Symbol
Description
3
LDHB
loudness high boost; see Figure 39
0 = loudness control is limited to bass gain
1 = loudness controls bass gain and treble gain
2 to 0
[1]
LDS[2:0]
loudness start setting; loudness start defines the volume setting below
which loudness control is activated; see Table 100 and Figure 39
The VU-meter mode can be used with external sources only. When the VU-meter mode is active, the radio
quality detection of USN, MOD and offset is limited to AF update tuning only. During VU-meter mode the
bits MOD[4:0] indicate the external source input amplitude. The FM dynamic bandwidth control is disabled
and a fixed bandwidth of 113 kHz is defined. However, other fixed bandwidth settings are available by
DYN = 0 and the setting of BW; data byte 0h (see Table 28). See Table 99 for compression recovery timing
control. VU-meter mode is automatically activated when audio compression is on (COMP = 1).
Table 99.
VU-meter timing; HTC[2:0] of data byte 0Bh; TIMING[1]
HTC2
HTC1
HTC0
tattack
trecovery
0
0
0
0.02 s
0.03 s
0
0
1
0.02 s
0.06 s
0
1
0
0.02 s
0.2 s
0
1
1
0.02 s
5s
1
0
0
0.02 s
0.6 s
1
0
1
0.02 s
10 s
1
1
0
0.02 s
1s
1
1
1
0.02 s
2s
[1]
Setting HTC[2:0] is also in use for setting the timing of weak signal high cut control during radio operation.
Table 100. Loudness start
LDS2
LDS1
LDS0
Start of loudness at volume setting
0
0
0
−12 dB
0
0
1
−16 dB
0
1
0
−20 dB
0
1
1
−24 dB
1
0
0
−28 dB
1
0
1
−32 dB
1
1
0
−36 dB
1
1
1
−40 dB
TEF6901A_3
Product data sheet
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70 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
001aab599
−12
gain
(dB)
VOL =
−20
−22
−24
−26
−28
−30
−32
−34
−36
−38
−40
−20
−28
−36
−44
2 × 10−2
10−1
1
f audio (kHz)
10
20
a. LDON = 1, LDHB = 0.
001aab553
−12
gain
(dB)
VOL =
−20
−22
−24
−26/−28
−30
−32
−34/−36
−38
−40
−20
−28
−36
−44
2 × 10−2
10−1
10
1
20
f audio (kHz)
b. LDON = 1, LDHB = 1.
Fig 39. Loudness control characteristics; loudness start = −20 dB, bass frequency = 60 Hz,
treble frequency = 10 kHz; bass gain = 0 dB, treble gain = 0 dB
TEF6901A_3
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TEF6901A
NXP Semiconductors
Integrated car radio
8.2.26 Write mode: data byte POWER
Table 101. POWER - format of data byte 18h with default setting
7
6
5
4
3
2
1
0
0
STBT
STBR
0
0
ASI
AST1
AST0
0
0
1
1
0
Table 102. POWER - data byte 18h bit description[1]
Bit
Symbol
Description
7
-
reserved; 0 = normal operation
6
STBT
standby tuner
0 = normal operation
1 = power consumption is reduced by disabling part of the tuner circuit;
radio operation is disabled
5
STBR
standby RDS demodulator
0 = normal operation
1 = RDS demodulator in Standby mode
4 and 3
-
reserved; 0 = normal operation
2
ASI
audio step interpolation
0 = audio step interpolation is disabled
1 = audio step interpolation is enabled
1 and 0
AST[1:0]
ASI step time; selection of the audio step interpolation time
00 = 1 ms
01 = 3 ms
10 = 10 ms
11 = 30 ms
[1]
The power saving offered by the Standby modes is limited and is not intended to realize an effective
power-down.
8.2.27 Write mode: data bytes RESERVED
Table 103. RESERVED - format of data byte 19h to 1Eh
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
Table 104. RESERVED - data byte 19h to 1Eh bit description[1]
Bit
Symbol
Description
7 to 0
-
reserved; 0 = normal operation
[1]
Reserved bits may control test options for factory testing.
TEF6901A_3
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TEF6901A
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8.2.28 Write mode: data byte TEST
Table 105. TEST - format of data byte 1Fh
7
6
5
4
3
2
1
0
RBWR
0
TEST5
TEST4
TEST3
TEST2
TEST1
TEST0
0
0
0
0
0
0
0
Table 106. TEST - data byte 1Fh bit description
Bit
Symbol
Description
7
RBWR
next I2C-bus read contains write register data (RBWR will be reset to logic 0 after read)
6
-
reserved; 0 = normal operation
5 to 0
TEST[5:0]
test mode
00 0000 = normal operation
00 1011 = AM IF noise blanker disabled
00 1110 = AM IF noise blanker disabled
01 1001 = AM audio noise blanker and FM noise blanker disabled
all other settings are reserved
9. Limiting values
Table 107. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol
Parameter
VCC
analog supply voltage on pins VCC,
VCCPLL, VCCVCO, VCCRF,
AMMIX2OUT1, AMMIX2OUT2, MIX1OUT1
and MIX1OUT2
∆VCC
voltage difference between any VCC pins
VV60
supply voltage for FM filter and demodulator
VI
digital input voltage on pins SCL, SDA and
ADDR
Vn
voltage on all other pins
Tstg
storage temperature
Tj
junction temperature
Tamb
ambient temperature
Vesd
electrostatic discharge voltage on
all pins except VCCVCO
pin VCCVCO
[1]
The maximum voltage should be less than 10 V.
[2]
Class 2 according to JESD22-A114D.
[3]
Class B according to EIA/JESD22-A115-A.
[4]
Class 1C according to JESD22-A114D.
[5]
Class A according to EIA/JESD22-A115-A.
Conditions
[1]
[1]
Max
Unit
−0.3
+10
V
−0.3
+0.3
V
−0.3
VCC + 0.3
V
−0.3
+5.5
V
−0.3
VCC + 0.3
V
−40
+150
°C
-
150
°C
−40
+85
°C
human body model
[2]
−2000
+2000
V
machine model
[3]
−200
+200
V
human body model
[4]
−1750
+1750
V
machine model
[5]
−175
+175
V
TEF6901A_3
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73 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
10. Thermal characteristics
Table 108. Thermal characteristics
Symbol
Parameter
Rth(j-a)
Rth(j-c)
Conditions
Typ
Unit
thermal resistance from junction to ambient in free air
55
K/W
thermal resistance from junction to case
18
K/W
11. Static characteristics
Table 109. Static characteristics
VCC = 8.5 V; Tamb = 25 °C; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Supply voltage
VCC
analog supply voltage on pins VCC,
VCCPLL, VCCVCO, VCCRF,
AMMIX2OUT1, AMMIX2OUT2,
MIX1OUT1 and MIX1OUT2
8
8.5
9
V
VV60
supply voltage for FM filter and
demodulator
5.5
7.2
-
V
Tamb = −40 °C
-
49
-
mA
Tamb = 25 °C
40
49
60
mA
Tamb = 85 °C
-
49
-
mA
Current in FM mode
ICC
ICCPLL
ICCVCO
ICCRF
IV60
IMIX1OUT1;
IMIX1OUT2
supply current
supply current for tuning PLL
supply current for VCO
supply current for RF
supply current for FM filter and
demodulator
bias current of FM and AM mixer 1 at
output 1 or output 2
Tamb = −40 °C
-
4.0
-
mA
Tamb = 25 °C
2.9
3.6
5
mA
Tamb = 85 °C
-
3.3
-
mA
Tamb = −40 °C
-
2.2
-
mA
Tamb = 25 °C
-
2.1
-
mA
Tamb = 85 °C
-
2.0
-
mA
Tamb = −40 °C
-
12
16
mA
Tamb = 25 °C
10.5
13.5
16.5
mA
Tamb = 85 °C
-
14
18.5
mA
Tamb = −40 °C
-
28
-
mA
Tamb = 25 °C
22
28
34
mA
Tamb = 85 °C
-
28
-
mA
Tamb = −40 °C
-
5.3
-
mA
Tamb = 25 °C
4.3
5.7
7.5
mA
Tamb = 85 °C
-
6.0
8.0
mA
Current in AM mode
ICC
supply current
Tamb = −40 °C
-
58
-
mA
Tamb = 25 °C
44
58
75
mA
Tamb = 85 °C
-
58
-
mA
TEF6901A_3
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74 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 109. Static characteristics …continued
VCC = 8.5 V; Tamb = 25 °C; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
ICCPLL
supply current for tuning PLL
Tamb = −40 °C
-
3.9
-
mA
Tamb = 25 °C
2.9
3.6
5
mA
ICCVCO
ICCRF
IV60
IMIX1OUT1;
IMIX1OUT2
supply current for VCO
supply current for RF
supply current for FM filter and
demodulator
bias current of FM and AM mixer 1 at
output 1 or output 2
Tamb = 85 °C
-
3.2
-
mA
Tamb = −40 °C
-
2.2
-
mA
Tamb = 25 °C
-
2.1
-
mA
Tamb = 85 °C
-
2.0
-
mA
Tamb = −40 °C
-
8.8
-
mA
Tamb = 25 °C
6.7
8.8
13
mA
Tamb = 85 °C
-
8.8
-
mA
Tamb = −40 °C
-
8.0
-
mA
Tamb = 25 °C
6
7.8
10.2
mA
Tamb = 85 °C
-
7.5
-
mA
Tamb = −40 °C
-
3.6
-
mA
Tamb = 25 °C
2.6
3.45
4.5
mA
Tamb = 85 °C
IAMMIX2OUT1; bias current of AM mixer 2 at output 1 Tamb = −40 °C
IAMMIX2OUT2 or output 2
Tamb = 25 °C
Tamb = 85 °C
-
3.3
-
mA
-
5.5
-
mA
3.7
4.6
5.5
mA
-
3.7
-
mA
Logic pins
VIH
HIGH-level input voltage (pins RDCL
and ADDR)
1.75
-
5.5
V
VIL
LOW-level input voltage (pins RDCL
and ADDR)
−0.2
-
+1.0
V
Ileak(od)
open-drain leakage current (pins
RDCL and RDDA)
−10
-
+10
µA
VOL
LOW-level output voltage (pins RDCL
and RDDA)
-
-
0.4
V
open collector;
IOL = 3 mA
Power-on reset; all registers in default setting, outputs muted, Standby mode
Vth(POR)
threshold value of VCC for power-on
reset
VCC drop during
operation
Tamb = −40 °C
-
6.8
-
V
Tamb = 25 °C
6.15
6.3
6.45
V
Tamb = 85 °C
-
5.8
-
V
TEF6901A_3
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TEF6901A
NXP Semiconductors
Integrated car radio
12. Dynamic characteristics
12.1 Dynamic characteristics of the tuner
Table 110. Dynamic characteristics of the tuner
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
-
20.5
-
MHz
112
-
-
dBc
---------Hz
[1]
80
100
160
mV
[1]
-
−500
−250
Ω
[1]
-
8
-
pF
Crystal oscillator
fxtal
crystal frequency
C/N
carrier-to-noise ratio
fxtal = 20.5 MHz; ∆f = 10 kHz
Circuit inputs: pins XTAL1 and XTAL2
Vo(osc)(rms)
oscillator output voltage
(RMS value)
Ri
real part of input
impedance
Ci
input capacitance
VXTAL1-XTAL2 = 1 mV
Tuning system; see Table 38, Table 39 and Table 41
Voltage controlled oscillator
fosc(min)
minimum oscillator
frequency
-
-
153.6
MHz
fosc(max)
maximum oscillator
frequency
256
-
-
MHz
C/N
carrier-to-noise ratio
fosc = 200 MHz; ∆f = 10 kHz;
Q ≥ 30
-
98
-
dBc
---------Hz
RR
ripple rejection;
fripple = 100 Hz;
VCC(ripple) = 50 mV (RMS);
fosc = 200 MHz; FM mode
44
50
-
dB
V CC(ripple)
RR = ----------------------V MPXAM
Charge pump: pin CPOUT; see Table 40
Isink(CP1)
charge pump CP1 sink
current
VCPOUT = 0.5 V to
VCCPLL − 1.3 V; fref = 100 kHz
130
180
240
µA
Isource(CP1)
charge pump CP1
source current
VCPOUT = 0.5 V to
VCCPLL − 1.3 V; fref = 100 kHz
−240
−180
−130
µA
Isink(CP2)
charge pump CP2 sink
current
VCPOUT = 0.7 V to
VCCPLL − 1.5 V; fref = 50 kHz
270
360
480
µA
Isource(CP2)
charge pump CP2
source current
VCPOUT = 0.7 V to
VCCPLL − 1.5 V; fref = 50 kHz
−480
−360
−270
µA
Isink(CP3)
charge pump CP3 sink
current
VCPOUT = 0.7 V to
VCCPLL − 0.7 V;
fref = 20 kHz or 25 kHz
580
780
1050
µA
Isource(CP3)
charge pump CP3
source current
VCPOUT = 0.7 V to
VCCPLL − 0.7 V;
fref = 20 kHz or 25 kHz
−1050
−780
−580
µA
Isink(CP4)
charge pump CP4 sink
current
VCPOUT = 0.7 V to
VCCPLL − 0.7 V; fref = 20 kHz
1040
1400
1900
µA
Isource(CP4)
charge pump CP4
source current
VCPOUT = 0.7 V to
VCCPLL − 0.7 V; fref = 20 kHz
−1900
−1400
−1040
µA
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
76 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 110. Dynamic characteristics of the tuner …continued
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Isink(CP5)
charge pump CP5 sink
current
VCPOUT = 0.7 V to
VCCPLL − 0.7 V; fref = 10 kHz
1630
2 200
2970
µA
Isource(CP5)
charge pump CP5
source current
VCPOUT = 0.7 V to
VCCPLL − 0.7 V; fref = 10 kHz
−2970
−2200
−1630
µA
Charge pump: pin VTUNE
Isink
charge pump sink
current
VVTUNE = 0.8 V to
VCCPLL − 0.7 V
2070
2800
3780
µA
Isource
charge pump source
current
VVTUNE = 0.8 V to
VCCPLL − 0.7 V
−3780
−2800
−2070
µA
ttune
tuning time
Europe FM and US FM band;
fref = 100 kHz; fRF = 87.5 MHz
to 108 MHz
-
0.75
1
ms
AM MW band; fref = 20 kHz;
fRF = 0.53 MHz to 1.7 MHz
-
5
20
ms
-
6
6.5
ms
Tcy
inaudible AF update
cycle time including
1 ms mute start and
1 ms mute release time
Antenna Digital Auto Alignment (DAA)
DAA: pin DAAOUT[2]
Ileak(DAA)
antenna DAA input
leakage current on pin
VTUNE (test mode)
VVTUNE = 0.4 V to 8 V
−10
-
+10
nA
∆Vo(T)
output voltage variation
with temperature
Tamb = −40 °C to +85 °C;
DAA[6:0] = 100 0000
−30
-
+30
mV
∆Vo(sink)
output voltage variation
caused by sink current
VVTUNE = 4 V; IL = 50 µA
−VLSB
-
+VLSB
∆Vo(source)
output voltage variation
caused by source
current
VVTUNE = 4 V; IL = −50 µA
−VLSB
-
+VLSB
tst
settling time
VDAAOUT = 0.2 V to 8.25 V;
CL = 270 pF
-
30
60
µs
output voltage
DAA[6:0] = 000 0000
-
-
0.5
V
DAA[6:0] = 111 1111
8.0
-
8.5
V
AM mode
Vo
FM mode
Vo(n)
output noise voltage
VVTUNE = 4 V;
DAA[6:0] = 100 0000;
B = 300 Hz to 22 kHz
-
30
100
µV
RR
ripple rejection
VVTUNE = 4 V;
DAA[6:0] = 101 0101;
fripple = 100 Hz;
VCC(ripple) = 100 mV
-
40
-
dB
∆Vo(step)
step accuracy
VVTUNE = 2 V
−0.5VLSB 0
TEF6901A_3
Product data sheet
+0.5VLSB
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
77 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 110. Dynamic characteristics of the tuner …continued
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Vo
output voltage
VVTUNE = 0.5 V;
DAA[6:0] = 000 0000
-
-
0.5
V
VVTUNE = 4.25 V;
DAA[6:0] = 111 1111
8
-
-
V
DAA[6:0] = 000 0000
-
-
0.5
V
DAA[6:0] = 100 0000
3.8
4.23
4.65
V
DAA[6:0] = 101 0101
2.45
2.74
3.05
V
DAA[6:0] = 010 1010
1.3
1.46
1.6
V
700
1000
1400
mV
-
0.23
-
V
-
10
-
dB
-
5
-
V
-
1.6
-
kΩ
VVTUNE = 4 V
VVTUNE = 2 V
AM channel
AM RF AGC detector A: pin AMMIX1IN; see Figure 40
VAMMIX1IN(p-p) AM AGC start level
(peak-to-peak value)
AGC[1:0] = 00; m = 1
AM RF AGC detector B: pin AMIF2IN; see Figure 40
VAMIF2IN(p-p)
IF voltage on pin
AMIF2IN for AGC start
(peak-to-peak value)
m = 1; fmod = 400 Hz
RF cascode AGC
∆AGC
AGC control range
VVAMCAS
cascode base voltage
RVAMCAS
cascode base source
resistance
IVAMCAS
cascode base current
drive capability
source current
100
-
-
µA
sink current
-
0
-
µA
cascode emitter
DC voltage
minimum gain at cascode
AGC
-
320
-
mV
KAGC = 1
-
800
-
mV
KAGC = 0
-
4.15
-
V
-
-
2
µA
VVAMCASFB
AGC[1:0] = 00; maximum gain
at cascode AGC
maximum gain at cascode
AGC
IVAMCASFB
cascode feedback
current
RF PIN diode AGC current generator output: pin IAMAGC
∆AGC
AGC control range
fRF = 999 kHz; dummy aerial
15 pF/60 pF
-
50
-
dB
Isink(max)
maximum AGC sink
current
VIAMAGC > 1 V
10
-
-
mA
Isource
AGC source current
AGC not active
-
−2.5
-
µA
Isink(FM)
AGC sink current in
FM mode
AGCSW = 1
0.5
1
-
mA
AGCSW = 0
-
-
100
nA
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
78 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 110. Dynamic characteristics of the tuner …continued
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; unless otherwise specified.
Symbol
Parameter
CIAMAGC
Conditions
Min
Typ
Max
Unit
source current
generator output
capacitance
-
3
-
pF
VVDCPIN
bias voltage for AM PIN
diode
4.5
5
5.5
V
RVDCPIN
bias source resistance
-
150
-
Ω
Ibias(max)
maximum bias current
source current
20
-
-
mA
sink current
30
-
-
µA
AM mixer 1 (IF1 = 10.7 MHz)
Mixer input: pins AMMIX1IN and AMMIX1DEC
Ri
input resistance
[3]
10
13.2
16
kΩ
Ci
input capacitance
[3]
-
3
-
pF
Vi(max)
maximum input voltage
500
-
-
mV
1 dB compression point of
VMIX1OUT1-MIX1OUT2; m = 0
Mixer output: pins MIX1OUT1 and MIX1OUT2
Vo(max)(p-p)
maximum output voltage
(peak-to-peak value)
-
12
-
V
gm(conv)
conversion
transconductance Io / Vi
1.75
2.5
3.25
mA
-------V
gm(conv)(T)
conversion
transconductance
variation with
temperature related to
Tamb = 25 °C
Tamb = −40 °C
-
1
-
dB
Tamb = 85 °C
-
−0.2
-
dB
100
-
-
kΩ
Ro
output resistance
[4]
[4]
Co
output capacitance
IP3
3rd-order intercept point RL = 2.6 kΩ (AC load between
output pins); ∆f = 300 kHz
-
4
7
pF
135
138
-
dBµV
IP2
2nd-order intercept
point
RL = 2.6 kΩ (AC load between
output pins)
-
170
-
dBµV
Vi(n)(eq)
equivalent input noise
voltage
band limited noise;
Rgen = 750 Ω; noise of Rgen
included; RL = 2.6 kΩ
(AC load between output pins)
-
5.8
8
nV
---------Hz
F
noise figure of
AM mixer 1
-
4.5
7.1
dB
AM mixer 2 (IF2 = 450 kHz)
Mixer input: pins IF1IN and IF1DEC
input resistance
[5]
-
330
-
Ω
Ci
input capacitance
[5]
-
3
-
pF
Vi(max)(p)
maximum input voltage
(peak value)
1.1
1.4
-
V
50
-
-
kΩ
Ri
1 dB compression point of
VAMMIX2OUT1-AMMIX2OUT2
Mixer output: pins AMMIX2OUT1 and AMMIX2OUT2
Ro
output resistance
[6]
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
79 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 110. Dynamic characteristics of the tuner …continued
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; unless otherwise specified.
Symbol
Parameter
Conditions
[6]
Min
Typ
Max
Unit
-
3
-
pF
Co
output capacitance
Vo(max)(p-p)
maximum output voltage VCCAMMIX2 = 8.5 V
(peak-to-peak value)
-
12
-
V
gm(conv)
conversion
transconductance Io / Vi
1.2
1.6
2.1
mA
-------V
gm(conv)(T)
conversion
transconductance
variation with
temperature related to
Tamb = 25 °C
−1
0
+1
dB
IP3
3rd-order intercept point RL = 1.5 kΩ (AC load between
output pins); ∆f = 300 kHz
134
137
-
dBµV
IP2
2nd-order intercept
point
RL = 1.5 kΩ (AC load between
output pins)
-
170
-
dBµV
Vi(n)(eq)
equivalent input noise
voltage
Rgen = 330 Ω; noise of Rgen
included; RL = 1.5 kΩ
(AC load between output pins)
-
15
22
nV
---------Hz
F
noise figure of
AM mixer 2
-
16
19.5
dB
Ileak
mixer leakage current
-
-
10
µA
Tamb = −40 °C to +85 °C
FM mode;
Tamb = −40 °C to +85 °C
AM IF2 AGC stage: pins AMIF2IN and AMIF2DEC[5]
Ri
input resistance
1.6
2
2.4
kΩ
Ci
input capacitance
-
5
-
pF
Vi
input voltage
-
10
20
µV
VAGC(stop)
AGC stop voltage (input
carrier voltage)
100
-
-
mV
(S+N)/N = 26 dB
-
60
90
µV
(S+N)/N = 46 dB
-
600
900
µV
for α = −10 dB audio
attenuation at MPXAMOUT
AM demodulator output: pin MPXAMOUT
Vsens
sensitivity voltage
m = 0.3; fmod = 400 Hz;
BAF = 2.15 kHz; Rgen = 2 kΩ
(S+N)/N
maximum signal plus
noise-to-noise ratio
m = 0.3; fmod = 400 Hz;
BAF = 2.15 kHz; Rgen = 2 kΩ
54
60
-
dB
Vo
MPXAMOUT output
voltage
m = 0.3; fmod = 400 Hz;
Vi = 100 µV to 100 mV
200
255
320
mV
THD
total harmonic distortion BAF = 2.15 kHz;
VAMIF2IN = 100 µV to 100 mV;
m = 0.8; fmod = 400 Hz
-
0.5
1
%
tst
AM AGC settling time
VAMIF2IN = 100 µV to 100 mV
-
165
-
ms
VAMIF2IN = 100 mV to 100 µV
-
440
-
ms
Ro
output resistance
-
-
500
Ω
Co
output capacitance
-
3
-
pF
ZL
load impedance
10
-
-
kΩ
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
80 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 110. Dynamic characteristics of the tuner …continued
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
RR
ripple rejection
fripple = 100 Hz;
VCC(ripple) = 50 mV (RMS);
VAMIF2IN = 10 mV
20
26
-
dB
Vi(AMIF2IN) = 95 µV; level slope
aligned to (800 ± 50) mV/dec;
level start aligned to
VLEVEL = (1.24 ± 0.04) V
6
-
25
-
V CC(ripple)
RR = ---------------------------V MPXAMOUT
AM level detector output: pin LEVEL
Input: pins AMIF2IN and AMIF2DEC
LST
level start alignment
position
∆VLEVEL
step size for adjustment VAMIF2IN = 0 V; default setting
of level starting point
of level slope
20
40
72
mV
LSL
level slope alignment
position
0
-
7
-
∆Vstep
step size for adjustment VAMIF2IN = 1.4 mV
of level slope
40
60
80
mV
-------dec
∆VLEVEL(T)
level voltage drift over
temperature
-
0.05
-
dB
-----K
Ro
output resistance
-
-
500
Ω
RL
output load resistance
25
-
-
kΩ
CL(max)
maximum load
capacitance
25
-
-
pF
RR
ripple rejection
VCC(ripple) = 50 mV (RMS);
fripple = 100 Hz;
VAMIF2IN = 10 mV
-
24
-
dB
-
8
-
µs
NBL[1:0] = 00
-
1.4
-
V
NBL[1:0] = 01
-
1.0
-
V
NBL[1:0] = 10
-
0.7
-
V
-
5
-
%
V CC(ripple)
RR = -------------------------V LEVEL(AC)
level slope measured from
Vi(AMIF2IN) = 95 µV to
Vi(AMIF2IN) = 950 µV; level
slope aligned to
(800 ± 50) mV/dec
Tamb = −40 °C to +85 °C
AM noise blanker IF part
tsup
suppression time at IF2
IF2 = 450 kHz
Vth
noise blanker trigger
threshold
noise pulse at RF input
(CISPR 16-1);
repetition rate = 100 Hz; pulse
duration 5 ns; tr and tf < 1 ns;
measured at dummy aerial
input (15 pF/60 pF)
mth
modulation threshold for maximum modulation, which
blanking of audio signal triggers the blanking circuit in
the audio part; LODX = 0
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
81 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 110. Dynamic characteristics of the tuner …continued
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
AGC[1:0] = 11
-
9
-
mV
AGC[1:0] = 00; KAGC = 0;
Vi(RF) > VAGC(start);
see Table 34
−15
−10
−7
mA
FM channel
FM RF AGC (FM distance mode; LODX = 0)
Inputs: pins FMMIX1IN1 and FMMIX1IN2[7]
Vi(RF)
RF input voltage for
start of wideband AGC
PIN diode drive output: pin IFMAGC
Isource(max)
maximum AGC source
current
Isink(max)
maximum AGC sink
AGC[1:0] = 00; KAGC = 0
current at AGC recovery
7
10
15
mA
Isource
AGC source current
AM mode; AGCSW = 1
−6
−4
−2.5
mA
AM mode; AGCSW = 0
-
0
-
mA
LODX = 1 (FM local)
−0.75
−0.5
−0.35
mA
500
950
1400
mV
Voltage for narrow-band AGC: pin LEVEL
Vth
threshold voltage for
narrow-band AGC
KAGC = 1 (keyed AGC)
FM mixer 1 (IF1 = 10.7 MHz)
Mixer input: pins FMMIX1IN1 and FMMIX1IN2[7] and mixer output: pins MIX1OUT1 and MIX1OUT2[4]
Ri
input resistance
RFGAIN = 0
3
3.8
4.7
kΩ
RFGAIN = 1
1.6
2.0
2.5
kΩ
Ci
input capacitance
-
2
4
pF
Ro
output resistance
100
-
-
kΩ
Co
output capacitance
-
4
6
pF
Vi(RF)(max)
maximum RF input
voltage
1 dB compression point of
FM mixer output voltage
75
100
-
mV
Vi(n)(eq)
equivalent input noise
voltage
Rgen = 200 Ω; noise of Rgen
included; RL = 2.6 kΩ
-
2.7
3.2
nV
---------Hz
gm(conv)
conversion
RFGAIN = 0
transconductance Io / Vi
12
18
25
mA
-------V
RFGAIN = 1
24
36
50
mA
-------V
-
−0.2 × 10−2 -
K−1
gm(conv)(T)
conversion
transconductance
variation with
temperature
F
noise figure
Rgen = 300 Ω
Tamb = −40 °C
-
2.8
-
dB
Tamb = 25 °C
-
3.1
4.6
dB
Tamb = 85 °C
-
3.5
-
dB
Rgen
recommended
generator resistance
-
200
-
Ω
IP3
3rd-order intercept point RFGAIN = 0
-
120
-
dBµV
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
82 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 110. Dynamic characteristics of the tuner …continued
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
IRR
image rejection ratio
fRFwanted = 87.5 MHz;
fRFimage = 108.9 MHz
25
35
-
dB
4.5
5.6
-
V
V owanted
------------------V oimage
Vo(max)(p-p)
maximum output voltage
(peak-to-peak value)
FM filter and demodulator
Tunable filter
Bmax
Bmin
maximum bandwidth
minimum bandwidth
DYN = 1
-
165
-
kHz
DYN = 0
-
165
-
kHz
DYN = 1
-
57
-
kHz
DYN = 0
-
57
-
kHz
∆fIF2
FM IF2 center frequency
alignment step size
-
2
-
kHz
fIF2(T)
temperature
dependence of IF2
center frequency
−60
-
+60
Hz
-----K
FM demodulator
FM mixer 2 input: pins IF1IN and IF1DEC[5] and output: pin MPXAMOUT
Ri
input resistance
275
330
400
Ω
Ro
output resistance
-
-
500
Ω
RL
load resistance
20
-
-
kΩ
CL
load capacitance
-
-
20
pF
Vi(max)
maximum input voltage
-
280
-
mV
Vi(start)(lim)
input voltage for start of
limiting of VMPXAMOUT
αAF = −3 dB
-
2.3
-
µV
Vi(sens)
sensitivity input voltage
∆f = 22.5 kHz; fmod = 1 kHz;
de-emphasis = 50 µs
(S+N)/N = 26 dB;
Rgen = 330 Ω
-
5
-
µV
(S+N)/N = 46 dB
-
41
-
µV
75
78
-
dB
∆f = 22.5 kHz; fmod = 1 kHz;
Vi = 3 mV;
de-emphasis = 50 µs;
B = 300 Hz to 22 kHz
(S+N)/N
ultimate signal plus
noise-to-noise ratio on
pin MPXAMOUT
THD
total harmonic distortion ∆f = 75 kHz; fmod = 1 kHz;
of VMPXAMOUT
Vi = 10 mV
-
0.5
1
%
∆fmax
maximum FM deviation
THD = 3 %; fmod = 1 kHz;
Vi = 10 mV
120
180
-
kHz
αAM
AM suppression
FM reference: ∆f = 22.5 kHz;
fmod = 1 kHz;
AM: m = 0.3; fmod = 1 kHz;
de-emphasis = 50 µs
10 µV < Vi < 1 V
-
40
-
dB
100 µV < Vi < 1 V
-
50
-
dB
V MPXAMOUT(FM)
--------------------------------------V MPXAMOUT(AM)
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
83 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 110. Dynamic characteristics of the tuner …continued
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; unless otherwise specified.
Symbol
Vo
Parameter
Conditions
Min
Typ
Max
Unit
output voltage
Vi = 20 µV to 1 V
∆f = 1.2 kHz; fmod = 57 kHz
-
7
-
mV
∆f = 22.5 kHz; fmod = 1 kHz
[4]
180
230
290
mV
fcut
cut-off frequency
CL = 0 F; RL > 20 kΩ
-
65
-
kHz
RR
ripple rejection
fripple = 100 Hz to 20 kHz;
VCC(ripple) = 50 mV;
VIF1IN = 3 mV
-
36
-
dB
V CC(ripple)
RR = ---------------------------V MPXAMOUT
FM level detector output: pin LEVEL[5]
Ro
output resistance
-
-
500
Ω
RL
load resistance
25
-
-
kΩ
CL
load capacitance
-
-
25
pF
LST
level start alignment
position
Vi(IF1IN) = 135 µV; level slope
aligned to (800 ± 50) mV/dec;
level start aligned to
VLEVEL = (1.47 ± 0.04) V
6
-
25
-
∆VLEVEL
step size of level start
adjustment
LSL[2:0] = 100
20
40
72
mV
LSL
level slope alignment
position
level slope measured from
Vi(IF1IN) = 135 µV to
Vi(IF1IN) = 1.35 mV; level slope
aligned to (800 ± 50) mV/dec
0
-
7
-
∆Vstep
step size of level slope
adjustment
Vi = 1 mV
40
60
80
mV
-------dec
RR
ripple rejection
VCC(ripple) = 50 mV;
fripple = 100 Hz
-
25
-
dB
FM mode
-
5
10
µV
AM mode; m = 0
-
70
260
µV
V CC(ripple)
RR = ----------------------V level(AC)
IF counter (FM IF2 or AM IF2 counter); see Table 8
Pins IF1IN and IF1DEC[5]
Vi(sens)
sensitivity voltage
Pins AMIF2IN and AMIF2DEC[8]
Vi(sens)
sensitivity voltage
[1]
Measured between pins XTAL1 and XTAL2.
[2]
Conversion gain formula of DAA: V DAAOUT =  1.915 × --------- + 0.1 × V VTUNE where n = 0 to 127.


128
[3]
Input parameters of AM mixer 1 measured between pins AMMIX1IN and AMMIX1DEC.
[4]
Output parameters of FM and AM mixer 1 measured between pins MIX1OUT1 and MIX1OUT2.
[5]
Input parameters of FM mixer 2 measured between pins IF1IN and IF1DEC.
[6]
Output parameters of AM mixer 2 measured between pins AMMIX2OUT1 and AMMIX2OUT2.
[7]
Input parameters of FM mixer 1 measured between pins FMMIX1IN1 and FMMIX1IN2.
[8]
Input parameters of AM mixer 2 measured between pins AMIF2IN and AMIF2DEC.
n
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
84 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
JFET
LNA
RFIN
CASCODE
RF
FILTER
pin
diode
TRFAGC IAMAGC
9
VAMCASFB
18
15
VAMCAS
AMMIX1IN
MIX1OUT1,
MIX1OUT2
IF1IN
AMMIX2OUT1,
AMMIX2OUT2
AMIF2IN
19
21
23, 24
27
28, 29
32
detector A
X
AM
MIXER1
X
AM
MIXER2
AGC
THRESHOLD
TEF6901AH
AGC threshold
AGC[1:0]
AGC
detector B
008aaa004
reduce cascode
AGC control range
KAGC
enable 1 mA
pin diode current
(FM mode)
AGCSW
Fig 40. AM AGC circuit
12.2 Dynamic characteristics of the sound processor
Table 111. Dynamic characteristics of the sound processor
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB;
bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain
(byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fMPXAMOUT = 1 kHz;
30 % FM modulation without
pilot
-
330
-
mV
Stereo decoder and AM path
Vo(FM)
FM mono output voltage
on pins LFOUT and
RFOUT
Vo(AM)
AM output voltage on
fAM = 1 kHz;
pins LFOUT and RFOUT 30 % AM modulation
-
365
-
mV
αcs
channel separation
40
-
-
dB
gf(L-R)
stereo adjust for fine
measure 1 kHz level for L − R
adjustment of separation modulation; compare to 1 kHz
level for L + R modulation
CSA[3:0] = 0000
-
0
-
dB
CSA[3:0] = 0001
-
0.2
-
dB
:
-
:
-
dB
CSA[3:0] = 1110
-
2.8
-
dB
CSA[3:0] = 1111
-
3.0
-
dB
fFMMPX = 1 kHz
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
85 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 111. Dynamic characteristics of the sound processor …continued
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB;
bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain
(byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
S/N
signal-to-noise ratio
fMPXAMIN = 20 Hz to 15 kHz;
referenced to 1 kHz at
91 % FM modulation;
DEMP = 1
70
-
-
dB
THD
total harmonic distortion
FM mode; DEMP = 1;
measured with 15 kHz
brick-wall low-pass filter
fMPXAMIN = 200 Hz to
15 kHz
-
-
0.3
%
VMPXAMIN = 50 %; L; pilot on
-
-
0.3
%
VMPXAMIN = 50 %; R;
pilot on
-
-
0.3
%
FM mode
−1
-
+1
dB
40
50
-
dB
Vo(bal)
mono channel balance
V oL
--------V oR
α19
pilot signal suppression
9 % pilot; fpilot = 19 kHz;
referenced to 1 kHz at
91 % FM modulation;
DEMP = 1
α
subcarrier suppression
modulation off; referenced to
1 kHz at 91 % FM modulation
fsc = 38 kHz
35
50
-
dB
fsc = 57 kHz
40
-
-
dB
fsc = 76 kHz
50
60
-
dB
24
-
-
dB
fMPXAMIN = 20 Hz
−0.5
-
+0.5
dB
fMPXAMIN = 20 kHz
−0.5
-
+0.5
dB
DEMP = 1 (τ = 50 µs)
-
3.18
-
kHz
DEMP = 0 (τ = 75 µs)
-
2.12
-
kHz
-
4.0
5.5
%
1.3
2.7
-
%
hysteresis of pilot
threshold voltage
-
2
-
dB
minimum suppression
time
-
15
-
µs
PSRR
power supply ripple
rejection
FM mode; fripple = 100 Hz;
VCC(AC) = Vripple = 100 mV
(RMS)
∆Vout
frequency response
FM mode
fcut(de-em)
mi(pilot)
hyspilot
cut-off frequency of
de-emphasis filter
−3 dB point; see Figure 31
stereo
pilot threshold
modulation for automatic
on
switching by pilot input
off
voltage
Noise blanker
FM part
tsup(min)
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
86 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 111. Dynamic characteristics of the sound processor …continued
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB;
bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain
(byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
Symbol
Parameter
Conditions
VMPXAMIN(M)
noise blanker sensitivity
at MPXAMIN input
(peak value of noise
pulses)
tpulse = 10 µs; fpulse = 100 Hz
VLEVEL(M)
noise blanker sensitivity
at LEVEL output
(peak value of noise
pulses) (test mode)
Min
Typ
Max
Unit
NBS[1:0] = 00
-
65
-
mV
NBS[1:0] = 01
-
100
-
mV
NBS[1:0] = 10
-
125
-
mV
NBS[1:0] = 11
-
160
-
mV
NBL[1:0] = 00
-
10
-
mV
NBL[1:0] = 01
-
25
-
mV
NBL[1:0] = 10
-
36
-
mV
NBL[1:0] = 11
-
50
-
mV
-
200
-
µs
NBS[1:0] = 00
-
16.5
-
V/ms
NBS[1:0] = 01
-
18.6
-
V/ms
NBS[1:0] = 10
-
21
-
V/ms
NBS[1:0] = 11
-
23.5
-
V/ms
USS[1:0] = 00
-
−0.06
-
V/kHz
USS[1:0] = 01
-
−0.08
-
V/kHz
USS[1:0] = 10
-
−0.12
-
V/kHz
-
−0.16
-
V/kHz
WAS[1:0] = 00
-
−7.5
-
-
WAS[1:0] = 01
-
−10
-
-
WAS[1:0] = 10
-
−15
-
-
WAS[1:0] = 11
-
−20
-
-
tpulse = 10 µs; fpulse = 100 Hz
AM audio part
tsup(min)
minimum suppression
time
MAM
noise blanker sensitivity;
triggered from pulses at
MPXAMIN slew rate
Weak signal processing
Detectors
VeqUSN/∆f
USN equivalent voltage
to frequency deviation
ratio
see Figure 24;
fMPXAMOUT = 150 kHz;
VMPXAMOUT = 250 mV;
HCMP = 1
[1]
USS[1:0] = 11
VeqWAM/VLEV(p-p) WAM equivalent voltage
to peak-to-peak voltage
on pin LEVEL ratio
see Figure 24;
VLEVEL = 200 mV (p-p) at
f = 21 kHz on the level
voltage; HCMP = 1
TEF6901A_3
Product data sheet
[1]
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
87 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 111. Dynamic characteristics of the sound processor …continued
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB;
bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain
(byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Setting of time constants for SNC, MUTE and HCC
tUSN(attack)
USN detector attack time soft mute and SNC
-
1
-
ms
tUSN(recovery)
USN detector recovery
time
soft mute and SNC
-
1
-
ms
∆USS
USN detector
desensitization
USN sensitivity setting (USS)
versus level voltage (USN
sensitivity setting is
automatically reduced as level
voltage decreases)
VLEVEL > 1.25 V
-
-
3
-
1.25 V > VLEVEL > 1.125 V
-
-
2
-
1.125 V > VLEVEL > 1.0 V
-
-
1
-
-
-
0
-
tWAM(attack)
WAM detector attack
time (SNC)
-
1
-
ms
tWAM(recovery)
WAM detector recovery
time (SNC)
-
1
-
ms
tpeak(USN)(attack)
peak detector attack time
for USN read-out via
I2C-bus
-
1
-
ms
tpeak(USN)(recovery) peak detector recovery
time for USN read-out via
I2C-bus
-
10
-
ms
peak detector attack time
for WAM read-out via
I2C-bus
-
1
-
ms
-
10
-
ms
1.0 V > VLEVEL
tpeak(WAM)(attack)
tpeak(WAM)(recovery) peak detector recovery
time for WAM read-out
via I2C-bus
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
88 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 111. Dynamic characteristics of the sound processor …continued
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB;
bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain
(byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
soft mute start voltage
FM mode; see Figure 28;
equivalent level voltage that
causes αmute = 3 dB;
MSL[1:0] = 11
MST[2:0] = 000
-
0.75
-
V
MST[2:0] = 001
-
0.88
-
V
MST[2:0] = 010
-
1
-
V
MST[2:0] = 011
-
1.12
-
V
MST[2:0] = 100
-
1.25
-
V
MST[2:0] = 101
-
0.68
-
V
MST[2:0] = 110
-
0.73
-
V
MST[2:0] = 111
-
0.85
-
V
MST[2:0] = 000
-
1.35
-
V
MST[2:0] = 001
-
1.58
-
V
MST[2:0] = 010
-
1.80
-
V
MST[2:0] = 011
-
1.12
-
V
MST[2:0] = 100
-
1.25
-
V
MST[2:0] = 101
-
1.50
-
V
MST[2:0] = 110
-
1.70
-
V
MST[2:0] = 111
-
1.91
-
V
Control functions
Vstart(mute)
AM mode; see Figure 29;
equivalent level voltage that
causes αmute = 3 dB;
MSL[1:0] = 11
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
89 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 111. Dynamic characteristics of the sound processor …continued
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB;
bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain
(byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
Symbol
Parameter
Conditions
Cmute
soft mute slope
FM mode; see Figure 28;
slope of soft mute attenuation
with respect to equivalent level
voltage; MST[2:0] = 000
C mute
∆α mute
= --------------------------∆V eq.LEVEL
Min
Typ
Max
Unit
MSLE = 0; MSL[1:0] = 00
-
8
-
dB/V
MSLE = 0; MSL[1:0] = 01
-
16
-
dB/V
MSLE = 0; MSL[1:0] = 10
-
24
-
dB/V
MSLE = 0; MSL[1:0] = 11
-
32
-
dB/V
MSLE = 1; MSL[1:0] = 00
-
40
-
dB/V
MSLE = 1; MSL[1:0] = 01
-
48
-
dB/V
MSLE = 0; MSL[1:0] = 00
-
8
-
dB/V
MSLE = 0; MSL[1:0] = 01
-
12
-
dB/V
MSLE = 0; MSL[1:0] = 10
-
16
-
dB/V
MSLE = 0; MSL[1:0] = 11
-
20
-
dB/V
MSLE = 1; MSL[1:0] = 00
-
24
-
dB/V
MSLE = 1; MSL[1:0] = 01
-
28
-
dB/V
MSLE = 1; MSL[1:0] = 10
-
32
-
dB/V
MSLE = 1; MSL[1:0] = 11
-
36
-
dB/V
UMD[1:0] = 00
-
3
-
dB
UMD[1:0] = 01
-
6
-
dB
UMD[1:0] = 10
-
9
-
dB
UMD[1:0] = 11
-
12
-
dB
SST[3:0] = 0000
-
1.5
-
V
:
-
:
-
V
AM mode; see Figure 29;
slope of soft mute attenuation
with respect to equivalent level
voltage; MST[2:0] = 011
αmute(max)
Vstart(SNC)
maximum soft mute
attenuation by USN
SNC stereo blend start
voltage
see Figure 30;
fMPXAMOUT = 150 kHz;
VMPXAMOUT = 0.6 V (RMS);
USS[1:0] = 11
see Figure 25; equivalent level
voltage that causes channel
separation is 10 dB;
SSL[1:0] = 10
SST[3:0] = 1000
-
2.0
-
V
:
-
:
-
V
SST[3:0] = 1111
-
2.45
-
V
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
90 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 111. Dynamic characteristics of the sound processor …continued
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB;
bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain
(byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
Symbol
Parameter
Conditions
CSNC
SNC slope
see Figure 25; slope of
channel separation between
30 dB and 10 dB with respect
to level voltage;
SST[3:0] = 1010
C SNC
Vstart(HCC)
CHCC
∆α cs
= --------------------------∆V eq.LEVEL
HCC start voltage
HCC slope
∆α 10 kHz
C HCC = --------------------------∆V eq.LEVEL
αHCC(max)
fcut
maximum HCC
attenuation
Min
Typ
Max
Unit
SSL[1:0] = 00
-
38
-
dB/V
SSL[1:0] = 01
-
51
-
dB/V
SSL[1:0] = 10
-
63
-
dB/V
SSL[1:0] = 11
-
72
-
dB/V
HST[2:0] = 000
-
1.17
-
V
HST[2:0] = 001
-
1.42
-
V
HST[2:0] = 010
-
1.67
-
V
HST[2:0] = 011
-
1.92
-
V
HST[2:0] = 100
-
2.17
-
V
HST[2:0] = 101
-
2.67
-
V
HST[2:0] = 110
-
3.17
-
V
HST[2:0] = 111
-
3.67
-
V
HSL[1:0] = 00
-
9
-
dB/V
HSL[1:0] = 01
-
11
-
dB/V
HSL[1:0] = 10
-
14
-
dB/V
HSL[1:0] = 11
-
18
-
dB/V
HCSF = 1; HCSFH = 0
-
10
-
dB
HCSF = 0; HCSFH = 0
-
14
-
dB
HCF[2:0] = 000
-
reserved
-
kHz
HCF[2:0] = 001
-
2
-
kHz
HCF[2:0] = 010
-
3
-
kHz
HCF[2:0] = 011
-
5
-
kHz
HCF[2:0] = 100
-
7
-
kHz
HCF[2:0] = 101
-
10
-
kHz
HCF[2:0] = 110
-
wide
-
-
HCF[2:0] = 111
-
unlimited
-
-
see Figure 26; faudio = 10 kHz;
equivalent level voltage that
causes αHCC = 3 dB;
HSL[1:0] = 10
see Figure 26; faudio = 10 kHz;
HST[2:0] = 010
see Figure 26; faudio = 10 kHz
cut-off frequency of fixed see Figure 27; −3 dB point
HCC
(first order filter)
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
91 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 111. Dynamic characteristics of the sound processor …continued
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB;
bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain
(byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
Symbol
Parameter
Analog-to-digital converters for
Conditions
Min
Typ
Max
Unit
I2C-bus
Level analog-to-digital converter (8-bit); see Table 10
VLEVEL(min)
lower voltage limit of
conversion range
-
0.25
-
V
VLEVEL(max)
upper voltage limit of
conversion range
-
4.25
-
V
∆VLEVEL
bit resolution voltage
-
15.7
-
mV
Ultrasonic noise analog-to-digital converter (4-bit); see Figure 24
∆fUSN(min)
conversion range lower
deviation limit
fMPXAMOUT = 150 kHz
-
0
-
kHz
∆fUSN(max)
conversion range upper
deviation limit
fMPXAMOUT = 150 kHz
-
100
-
kHz
∆fUSN
bit resolution
-
6.25
-
kHz
Wideband AM analog-to-digital converter (4-bit); see Figure 24
VWAM(min)(p-p)
lower voltage limit of
conversion range
(peak-to-peak value)
fLEVEL = 21 kHz
-
0
-
mV
VWAM(max)(p-p)
upper voltage limit of
conversion range
(peak-to-peak value)
fLEVEL = 21 kHz
-
800
-
mV
∆VWAM(p-p)
bit resolution voltage
(peak-to-peak value)
-
53.3
-
mV
Tone/volume control
Zi
input impedance
measured unbalanced;
pins INAL, INAR, INAC, INBL,
INBR, INC and IND
110
160
-
kΩ
Zo
output impedance
pins LFOUT, RFOUT, LROUT
and RROUT
-
-
100
Ω
Gs(main)
signal gain from
pins INAL, INAR, INAC,
INBL, INBR, INC and
IND to LFOUT, RFOUT,
LROUT and RROUT
−1
-
+1
dB
Vi(max)
maximum input voltage
2
-
-
V
THD = 0.2 %; Gvol = −6 dB;
pins INAL, INAR, INAC, INBL,
INBR, INC and IND
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
92 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 111. Dynamic characteristics of the sound processor …continued
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB;
bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain
(byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Vo(max)
maximum output voltage
Gvol = +6 dB
THD = 0.2 %
1.4
1.8
-
V
THD = 1 %; RL = 5 kΩ;
CL = 10 nF
1.4
1.8
-
V
THD = 0.2 %
2
2.2
-
V
THD = 0.2 %; VCC = 8.0 V
1.6
1.8
-
V
RL = 5 kΩ; CL = 10 nF;
THD = 1 %
2
2.25
-
V
RL = 5 kΩ; CL = 10 nF;
THD = 1 %; VCC = 8.0 V
1.7
1.9
-
V
Gvol = +3 dB;
OUTA = 1 (+3 dB)
fmax
frequency response (pins upper −1 dB point; referenced
INAL, INAR, INAC, INBL, to 1 kHz
INBR, INC and IND)
20
-
-
kHz
αASI
attenuation during ASI
f = 20 kHz referenced to 1 kHz
-
0.15
1
dB
CMRR
common mode rejection
ratio
Gvol = 0 dB; line input
capacitance Ci = 1 µF
faudio = 1 kHz on common
mode inputs
-
60
-
dB
faudio = 20 Hz to 20 kHz on
common mode inputs
40
-
-
dB
faudio = 20 Hz to 10 kHz;
Vi = 1 V (RMS)
-
0.02
0.1
%
faudio = 20 Hz to 10 kHz;
Vi = 2 V (RMS);
Gvol = −10 dB
-
0.03
0.2
%
faudio = 25 Hz;
Vi = 500 mV (RMS);
Gbass = +8 dB; Gvol = 0 dB
-
0.025
0.2
%
faudio = 4 kHz;
Vi = 500 mV (RMS);
Gtreble = +8 dB; Gvol = 0 dB
-
0.02
0.2
%
60
75
-
dB
faudio = 20 Hz to 10 kHz
75
90
-
dB
faudio = 20 kHz
70
-
-
dB
THD
total harmonic distortion
configured as non-inverting,
single-ended inputs
αcs
channel separation
faudio = 20 Hz to 20 kHz
αS
input isolation of one
selected source to any
other input
source impedance of unused
input: 600 Ω
TEF6901A_3
Product data sheet
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Rev. 03 — 20 March 2008
93 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 111. Dynamic characteristics of the sound processor …continued
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB;
bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain
(byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
Symbol
Parameter
Conditions
Vnoise(rms)
noise voltage
(RMS value)
ITU-R ARM-weighted and
20 kHz ‘brick wall’ without
input signal (source
impedance 600 Ω);
unbalanced
Voffset(max)
PSRR
maximum DC offset
power supply ripple
rejection
Min
Typ
Max
Unit
Gvol = 0 dB
-
12
20
µV
Gbass = +6 dB;
Gtreble = +6 dB; Gvol = 0 dB
-
24
35
µV
Gvol = +20 dB
-
71
100
µV
Gvol = +20 dB; balanced
-
100
140
µV
Gvol = −10 dB
-
10
18
µV
Gvol = −40 dB
-
9.5
13.5
µV
outputs muted
-
5
12
µV
using ‘A-weighting’ filter and
20 kHz ‘brick wall’;
Gvol = −20 dB; start of
loudness = −12 dB
-
6.8
10
µV
between any two settings
(non-consecutive) on any one
audio control
-
7
-
mV
between any two settings
(non-consecutive) on volume
control; Gvol ≤ +6 dB
-
7
-
mV
between any two settings
(non-consecutive) on input
gain control; Ging ≤ +6 dB
-
7
-
mV
VCC(AC) = Vripple = 200 mV
(RMS); Gvol = 0 dB
fripple = 20 Hz to 100 Hz
35
65
-
dB
fripple = 100 Hz to 1 kHz
50
70
-
dB
fripple = 1 kHz to 20 kHz
30
50
-
dB
-
70
-
dB
-
110
-
dB
-
12
-
ms
-
18
-
dB
-
−10
-
dB
-
2
-
dB
fripple = 500 Hz
αct
crosstalk between bus
fclk = 100 kHz
inputs and signal outputs
td
delay time from VCC
applied to final
DC voltage at outputs
[2]
Input gain
Ging
Gstep(vol)
input gain control
see Table 76
maximum setting
[3]
minimum setting
[3]
step resolution
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
94 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 111. Dynamic characteristics of the sound processor …continued
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB;
bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain
(byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
Symbol
Parameter
Conditions
volume/balance gain
control
see Table 83
Min
Typ
Max
Unit
Volume
Gvol
maximum setting
[3]
-
20
-
dB
minimum setting
[3]
-
−75
-
dB
-
−90
−80
dB
-
1
-
dB
-
0.25
1
dB
mute attenuation;
20 Hz to 20 kHz
Gstep(vol)
step resolution
|∆Gset|
gain set error
∆Gstep(vol)
gain step error
|∆Gtrack|
gain tracking error
between left and right
Gvol = +20 dB to −35 dB
Gvol = −36 dB to −75 dB
-
0.55
3
dB
-
-
1
dB
Gvol = +20 dB to −35 dB
-
0.1
1
dB
Gvol = −36 dB to −75 dB
-
0.3
3
dB
-
20
-
dB
Loudness; see Table 100 and Figure 39
[4]
Gbass
loudness bass control
range
Gtreble
loudness treble control
range
-
4
-
dB
Gstep
loudness step resolution
-
2
-
dB
TRF[1:0] = 00
-
8
-
kHz
TRF[1:0] = 01
-
10
-
kHz
TRF[1:0] = 10
-
12
-
kHz
TRF[1:0] = 11
-
15
-
kHz
TRE[2:0] = 111; TREM = 1
-
14
-
dB
TRE[2:0] = 111; TREM = 0
-
−14
-
dB
Treble
ftreble
Gtreble
treble control filter
frequency
treble gain control
see Figure 37; −3 dB
frequency of maximum treble
setting referenced to 100 kHz
Gstep(treble)
step resolution gain
-
2
-
dB
∆Gstep(treble)
treble step error
-
-
0.5
dB
BAF[1:0] = 00
-
60
-
Hz
BAF[1:0] = 01
-
80
-
Hz
BAF[1:0] = 10
-
100
-
Hz
BAF[1:0] = 11
-
120
-
Hz
Bass
fbass
Gbass
bass control filter
frequency at maximum
gain
bass gain control
see Figure 38
BAS[3:0] = 0111; BASM = 1
-
14
-
dB
BAS[3:0] = 0111; BASM = 0
-
−14
-
dB
Gstep(bass)
step resolution gain
-
2
-
dB
∆Gstep(bass)
bass step error
-
-
0.5
dB
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
95 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 111. Dynamic characteristics of the sound processor …continued
VCC = 8.5 V; Tamb = 25 °C; see Figure 43; all AC values are given in RMS; treble: 10 kHz filter frequency; treble = 0 dB;
bass: 60 Hz filter frequency; bass = 0 dB; faudio = 1 kHz; Gvol = 0 dB; Gfader = 0 dB; loudness off; standard output gain
(byte OUTPUT; bit OUTA = 0); RL = 10 kΩ; CL = 1 nF; unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
EQbow
equalizer bowing
faudio = 1 kHz;
Vi = 500 mV (RMS);
Gbass = +12 dB; fbass = 60 Hz;
Gtreble = +12 dB;
fcut(treble) = 15 kHz
-
1.8
-
dB
fader gain control
see Table 91
-
0
-
dB
Fader
Gfader
maximum setting
minimum setting
-
−64
-
dB
output mute
-
-
−80
dB
Gstep(fader)
step resolution gain
-
1
-
dB
∆Gstep(fader)
fader step error
-
-
1
dB
αmute
audio mute
80
90
-
dB
volume control: mute and
output muted (bits MULF,
MURF, MULR and MURR)
[1]
The equivalent level voltage is that value of the level voltage (on pin LEVEL) which results in the same weak signal control effect (for
instance HCC roll-off) as the output value of the specified detector (USN, WAM and multipath).
[2]
Crosstalk between bus inputs and signal outputs:
[3]
The input gain setting ING and the volume setting VOL define the overall volume. The overall range is limited to −83 dB to +28 dB. For
values > +28 dB the actual value is +28 dB. For overall values < −83 dB the actual value is mute.
[4]
The maximum bass gain including BASS setting is +20 dB.
V bus(p-p)
α ct = 20log -------------------V o(rms)
13. I2C-bus characteristics
The maximum I2C-bus communication speed is 400 kbit/s. SDA and SCL HIGH and LOW
internal thresholds are specified according to an I2C-bus voltage range from 2.5 V to 3.3 V
including I2C-bus voltage tolerances of 10 %. The bus interface tolerates also SDA and
SCL signals from a 5 V bus. Restrictions for VIL in a 5 V application can be derived from
Table 112.
Table 112. I2C-bus parameters
Symbol
Parameter
Conditions
VIL
LOW-level input voltage
-
-
1.09
V
VIH
HIGH-level input voltage
1.56
-
-
V
CSDA
capacitance of SDA pin
-
4
6
pF
CSCL
capacitance of SCL pin
-
3
5
pF
TEF6901A_3
Product data sheet
Min
Typ
Max
Unit
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
96 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
Table 112. I2C-bus parameters …continued
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
tDOR(HL)
data output reaction time
(acknowledge and read
data) HIGH-to-LOW
VDD = 5 V; I = 3 mA;
Cb = 400 pF;
see Figure 41
-
700
863
ns
VDD = 3.3 V;
Rp = 1.8 kΩ;
Cb = 400 pF;
see Figure 41
-
570
668
ns
VDD = 2.5 V; Rp = 35 kΩ;
Cb = 10 pF;
see Figure 41
-
520
593
ns
-
450
488
ns
20 + 0.1Cb 10 × VDD
-
ns
20 + 0.1Cb -
250
ns
tDOR(LH)
data output reaction time
(read data) LOW-to-HIGH
see Figure 41
tof
output fall time
Cb = 10 pF to 120 pF;
see Figure 42
[1]
Cb ≥ 120 pF;
see Figure 42
[1][2]
[1]
Minimum value of tof; Cb = total capacitance of one I2C-bus line [pF].
[2]
Typical value of tof; the output fall time tof [ns] depends on the total load capacitance Cb [pF] and the I2C-bus voltage VDD [V]:
tof = 1⁄12 × VDD × Cb.
0.7VDD
SDA
SCL
VIL(max)
VIL(max)
tDOR(LH)
tDOR(HL)
001aac124
001aab802
a. Data change from LOW to HIGH.
b. Data change from HIGH to LOW.
Fig 41. Data output reaction time of the IC
VDD
0.7VDD
0.3VDD
tof
001aab803
Fig 42. Definition of the fall time of the output signal
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
97 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
14. Overall system parameters
Table 113. Overall system parameters
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
-
102
-
mA
-
89
-
mA
LW
144
-
288
kHz
MW
522
-
1710
kHz
SW
2.3
-
26.1
MHz
fRF = 990 kHz; m = 0.3;
fmod = 1 kHz;
BAF = 2.15 kHz;
(S+N)/N = 26 dB;
dummy aerial
15 pF/60 pF
-
50
-
µV
54
58
-
dB
Supply current in FM mode
ICC
total supply current
inclusive IV60
Supply current in AM mode
ICC
total supply current
inclusive IV60
AM overall system parameters
ftune
AM tuning frequency
Vsens
sensitivity voltage
S/N
ultimate signal-to-noise
ratio
THD
total harmonic
distortion
200 µV < VRF < 1 V;
m = 0.8; fAF = 400 Hz
-
0.4
1
%
IP3
3rd-order intercept
point
∆f = 40 kHz
-
130
-
dBµV
65
-
108
MHz
FM overall system parameters
ftune
FM tuning frequency
Vsens
sensitivity voltage (RF
input voltage at
(S+N)/N = 26 dB)
∆f = 22.5 kHz;
fmod = 1 kHz;
DEMP = 1; B = 300 Hz
to 22 kHz; measured
with 75 Ω dummy
antenna and test circuit
-
2
-
µV
(S+N)/N
maximum signal plus
Vi = 3 mV;
noise-to-noise ratio of
∆f = 22.5 kHz;
MPXAM output voltage fmod = 1 kHz;
DEMP = 1; B = 300 Hz
to 22 kHz; measured
with 75 Ω dummy
antenna and test circuit
-
60
-
dB
THD
total harmonic
distortion
∆f = 75 kHz
-
0.5
1
%
IP3
3rd-order intercept
point
∆f = 400 kHz
-
120
-
dBµV
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
98 of 107
xxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x xxxxxxxxxxxxxx xxxxxxxxxx xxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx
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xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxx x x
C1
L
R
L
R
L
100 nF
2.2 pF
51
50
60
59
58
57
56
55
54
53
R
M−
M+
L
R
M
M
L−
R−
M
L
R
L+
R+
52
AUDIO STEP INTERPOLATION
61
VP
FM
STEREO
DECODER
vco
1 nF
270 pF
DIV
fREF
62
HIGH
CUT
DE-EMPHASIS
50 µs/75 µs
INPUT GAIN,
VOLUME,
BALANCE,
MUTE
INPUT
SELECT
LOUDNESS,
BASS,
TREBLE
48
47
46
45
F/R
FADER
hcc
soft mute
44
LO2 90°
4.7 100 nF
kΩ
vco
PLL
÷N
AM NOISE
DETECTOR
BAND
÷M
OFFS
FM NOISE
DETECTOR
LO1 90°
1
2.2 kΩ
WAM
Rev. 03 — 20 March 2008
Φ
2
3
VP
4
1 nF
5
tuning
mute
43
I2C-BUS
TUNING
STATE
MACHINE
reset
hold
fast
readhold
RDS
40
RDS
DEMODULATOR
pll
rds
vcm
7 vtc
LEVEL
22 kΩ
10
6.8 pF
1 nF
11
12
iFM
8
AM IF NOISE
DETECTOR
CASCODE
CONTROL
9
rf
13
rf
14
30
15
i.c.
16
dc
17
18
20
mix1
22
21
220
100
nF 15 µH nF
82 Ω
if1
25
1 mH
27 pF
27
28
29
220
nF
22
nF
(1) Pull-up resistor at RDCL only required for direct mode of RDS outputs.
47
Ω
VP
L4
SFE10.7MS3
VP
30
1 µF
L3
1.5 MΩ
Fig 43. Application diagram of TEF6901AH
26
22
nF
47 pF
560 Ω
BF862
BAV99
VP
24
100
nF
BC848C
220 pF
22
nF
VP
47 µF
34
1 µF
6v
33
47 Ω
VP
SFP450H
VP
31
22
nF
32
008aaa005
Integrated car radio
99 of 107
© NXP B.V. 2008. All rights reserved.
10 nF
100
nF
35
TEF6901A
BAP70AM
560 Ω
470 kΩ
23
100 nF
10 nF
gnd
36
100 nF
19
100
nF
AM
DEMODULATOR
MIXER
MIXER
1 nF
1 µF
RDDA
38
IF COUNT
FM/AM
RF AGC
iAM
RDCL
LO2
LO1
8.2 pF
1 nF
FM
DEMODULATOR
R4
10
kΩ(1)
37
vcc
vref
32
21
6.8 pF
6.8 µH
ifbw
MIXER
90°
MIXER
BAP64-04
90°
90°
L2
100 nH
BB207
LO2
R3
10
kΩ
39
i.c.
TEF6901AH
SCL
SDA
41
VP microcontroller
BW
90°
R2
10
kΩ
42
dig
pll
LO1
R1
10
kΩ
swap
6
22 nF
VP
I2C-bus
SM
WEAK SIGNAL AND
FM BANDWIDTH
CONTROL LOGIC
antenna DAA
3.3
nF
HCC
MULTIPATH,
LEVEL,
ADJACENT CHANNEL,
MODULATION AND
OFFSET
DETECTION
MOD
10 kΩ
3.9
nF 1.2 kΩ
SNC
USN
63
64
100 pF
LFOUT
RFOUT
LROUT
RROUT
snc
L1
47
kΩ
49
÷2
BB208
100 nF
NOISE
BLANKER
ana
NXP Semiconductors
=
LINE INPUTS
100 nF
15. Application information
TEF6901A_3
Product data sheet
20.5 MHz
TEF6901A
NXP Semiconductors
Integrated car radio
Table 114. List of components[1]
Symbol
Component
Type
2.2
pF[2]
Manufacturer
-
C1
capacitor for frequency pulling
C2
capacitor for VCO tuning
270 pF
-
C3
decoupling capacitor for VCO tuning
1 nF
-
R1
resistor for supply V60
47 Ω; 0.2 W
-
L1
oscillator coil
E543SNAS-02010
TOKO
L2
FM RF selectivity coil
C6342A-R11
SAGAMI
L3
10.7 MHz IF transformer
PF670CCS-A065DX
TOKO
L4
450 kHz IF transformer
P7PSGAE-A021YBY=S
TOKO
X1
crystal 20.5 MHz
LN-G102-587
NDK
D1
VCO varactor diode
BB208
NXP Semiconductors
D2
RF selectivity varactor diode
BB207
NXP Semiconductors
D3
FM PIN diode
BAP64-04
NXP Semiconductors
D4
AM PIN diode
BAP70AM
NXP Semiconductors
D5
ElectroStatic Discharge (ESD) protection diode
BAV99
NXP Semiconductors
T1
AM Low Noise Amplifier (LNA) JFET transistor
BF862
NXP Semiconductors
T2
AM LNA cascode transistor
BC847C
NXP Semiconductors
F1
10.7 MHz ceramic filter
SFELA10M7HAA0-B0
muRata
F2
450 kHz ceramic filter
CFWLA450KGFA-B0
muRata
[1]
All low value capacitors (≤ 1 nF) must be of NP0 type for guaranteed high frequency performance.
[2]
The capacitor is used to achieve a crystal frequency of 20.5 MHz together with the crystal type LN-G102-587.
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
100 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
16. Package outline
QFP64: plastic quad flat package; 64 leads (lead length 1.6 mm); body 14 x 14 x 2.7 mm
SOT393-1
c
y
X
A
48
33
49
32
ZE
e
E HE
A
A2
(A 3)
A1
θ
wM
pin 1 index
Lp
bp
L
17
64
detail X
16
1
w M
bp
e
v M A
ZD
D
B
HD
v M B
0
5
10 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A
max.
A1
A2
A3
bp
c
D (1)
E (1)
e
mm
3
0.25
0.10
2.75
2.55
0.25
0.45
0.30
0.23
0.13
14.1
13.9
14.1
13.9
0.8
HD
HE
17.45 17.45
16.95 16.95
L
Lp
v
w
y
1.6
1.03
0.73
0.16
0.16
0.1
Z D (1) Z E (1)
1.2
0.8
1.2
0.8
θ
o
7
o
0
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
REFERENCES
OUTLINE
VERSION
IEC
JEDEC
SOT393-1
134E07
MS-022
JEITA
EUROPEAN
PROJECTION
ISSUE DATE
00-01-19
03-02-20
Fig 44. Package outline SOT393-1 (QFP64)
TEF6901A_3
Product data sheet
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Rev. 03 — 20 March 2008
101 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
17. Soldering
This text provides a very brief insight into a complex technology. A more in-depth account
of soldering ICs can be found in Application Note AN10365 “Surface mount reflow
soldering description”.
17.1 Introduction to soldering
Soldering is one of the most common methods through which packages are attached to
Printed Circuit Boards (PCBs), to form electrical circuits. The soldered joint provides both
the mechanical and the electrical connection. There is no single soldering method that is
ideal for all IC packages. Wave soldering is often preferred when through-hole and
Surface Mount Devices (SMDs) are mixed on one printed wiring board; however, it is not
suitable for fine pitch SMDs. Reflow soldering is ideal for the small pitches and high
densities that come with increased miniaturization.
17.2 Wave and reflow soldering
Wave soldering is a joining technology in which the joints are made by solder coming from
a standing wave of liquid solder. The wave soldering process is suitable for the following:
• Through-hole components
• Leaded or leadless SMDs, which are glued to the surface of the printed circuit board
Not all SMDs can be wave soldered. Packages with solder balls, and some leadless
packages which have solder lands underneath the body, cannot be wave soldered. Also,
leaded SMDs with leads having a pitch smaller than ~0.6 mm cannot be wave soldered,
due to an increased probability of bridging.
The reflow soldering process involves applying solder paste to a board, followed by
component placement and exposure to a temperature profile. Leaded packages,
packages with solder balls, and leadless packages are all reflow solderable.
Key characteristics in both wave and reflow soldering are:
•
•
•
•
•
•
Board specifications, including the board finish, solder masks and vias
Package footprints, including solder thieves and orientation
The moisture sensitivity level of the packages
Package placement
Inspection and repair
Lead-free soldering versus PbSn soldering
17.3 Wave soldering
Key characteristics in wave soldering are:
• Process issues, such as application of adhesive and flux, clinching of leads, board
transport, the solder wave parameters, and the time during which components are
exposed to the wave
• Solder bath specifications, including temperature and impurities
TEF6901A_3
Product data sheet
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Rev. 03 — 20 March 2008
102 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
17.4 Reflow soldering
Key characteristics in reflow soldering are:
• Lead-free versus SnPb soldering; note that a lead-free reflow process usually leads to
higher minimum peak temperatures (see Figure 45) than a PbSn process, thus
reducing the process window
• Solder paste printing issues including smearing, release, and adjusting the process
window for a mix of large and small components on one board
• Reflow temperature profile; this profile includes preheat, reflow (in which the board is
heated to the peak temperature) and cooling down. It is imperative that the peak
temperature is high enough for the solder to make reliable solder joints (a solder paste
characteristic). In addition, the peak temperature must be low enough that the
packages and/or boards are not damaged. The peak temperature of the package
depends on package thickness and volume and is classified in accordance with
Table 115 and 116
Table 115. SnPb eutectic process (from J-STD-020C)
Package thickness (mm)
Package reflow temperature (°C)
Volume (mm3)
< 350
≥ 350
< 2.5
235
220
≥ 2.5
220
220
Table 116. Lead-free process (from J-STD-020C)
Package thickness (mm)
Package reflow temperature (°C)
Volume (mm3)
< 350
350 to 2000
> 2000
< 1.6
260
260
260
1.6 to 2.5
260
250
245
> 2.5
250
245
245
Moisture sensitivity precautions, as indicated on the packing, must be respected at all
times.
Studies have shown that small packages reach higher temperatures during reflow
soldering, see Figure 45.
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
103 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
maximum peak temperature
= MSL limit, damage level
temperature
minimum peak temperature
= minimum soldering temperature
peak
temperature
time
001aac844
MSL: Moisture Sensitivity Level
Fig 45. Temperature profiles for large and small components
For further information on temperature profiles, refer to Application Note AN10365
“Surface mount reflow soldering description”.
18. Revision history
Table 117. Revision history
Document ID
Release date
Data sheet status
Change notice
Supersedes
TEF6901A_3
20080320
Product data sheet
PCN20071211003
TEF6901A_2
Modifications:
TEF6901A_2
Modifications:
TEF6901A_1
•
The format of this data sheet has been redesigned to comply with the new identity guidelines of
NXP Semiconductors.
•
•
Legal texts have been adapted to the new company name where appropriate.
Table 106: test mode description corrected
20060710
•
•
•
•
•
Product data sheet
TEF6901A_1
Table 22: added row 1Fh
Section 8.2.27: changed 1Fh to 1Eh in table titles
Section 8.2.28: added
Table 110: AM demodulator output pin MPXAMOUT specification: changed values of Vo
Table 111: stereo decoder and AM path specification: changed value of Vo(AM)
20060202
Preliminary data sheet
TEF6901A_3
Product data sheet
-
-
-
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
104 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
19. Legal information
19.1 Data sheet status
Document status[1][2]
Product status[3]
Definition
Objective [short] data sheet
Development
This document contains data from the objective specification for product development.
Preliminary [short] data sheet
Qualification
This document contains data from the preliminary specification.
Product [short] data sheet
Production
This document contains the product specification.
[1]
Please consult the most recently issued document before initiating or completing a design.
[2]
The term ‘short data sheet’ is explained in section “Definitions”.
[3]
The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status
information is available on the Internet at URL http://www.nxp.com.
19.2 Definitions
Draft — The document is a draft version only. The content is still under
internal review and subject to formal approval, which may result in
modifications or additions. NXP Semiconductors does not give any
representations or warranties as to the accuracy or completeness of
information included herein and shall have no liability for the consequences of
use of such information.
Short data sheet — A short data sheet is an extract from a full data sheet
with the same product type number(s) and title. A short data sheet is intended
for quick reference only and should not be relied upon to contain detailed and
full information. For detailed and full information see the relevant full data
sheet, which is available on request via the local NXP Semiconductors sales
office. In case of any inconsistency or conflict with the short data sheet, the
full data sheet shall prevail.
19.3 Disclaimers
General — Information in this document is believed to be accurate and
reliable. However, NXP Semiconductors does not give any representations or
warranties, expressed or implied, as to the accuracy or completeness of such
information and shall have no liability for the consequences of use of such
information.
Right to make changes — NXP Semiconductors reserves the right to make
changes to information published in this document, including without
limitation specifications and product descriptions, at any time and without
notice. This document supersedes and replaces all information supplied prior
to the publication hereof.
Suitability for use — NXP Semiconductors products are not designed,
authorized or warranted to be suitable for use in medical, military, aircraft,
space or life support equipment, nor in applications where failure or
malfunction of an NXP Semiconductors product can reasonably be expected
to result in personal injury, death or severe property or environmental
damage. NXP Semiconductors accepts no liability for inclusion and/or use of
NXP Semiconductors products in such equipment or applications and
therefore such inclusion and/or use is at the customer’s own risk.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. NXP Semiconductors makes no
representation or warranty that such applications will be suitable for the
specified use without further testing or modification.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) may cause permanent
damage to the device. Limiting values are stress ratings only and operation of
the device at these or any other conditions above those given in the
Characteristics sections of this document is not implied. Exposure to limiting
values for extended periods may affect device reliability.
Terms and conditions of sale — NXP Semiconductors products are sold
subject to the general terms and conditions of commercial sale, as published
at http://www.nxp.com/profile/terms, including those pertaining to warranty,
intellectual property rights infringement and limitation of liability, unless
explicitly otherwise agreed to in writing by NXP Semiconductors. In case of
any inconsistency or conflict between information in this document and such
terms and conditions, the latter will prevail.
No offer to sell or license — Nothing in this document may be interpreted
or construed as an offer to sell products that is open for acceptance or the
grant, conveyance or implication of any license under any copyrights, patents
or other industrial or intellectual property rights.
Quick reference data — The Quick reference data is an extract of the
product data given in the Limiting values and Characteristics sections of this
document, and as such is not complete, exhaustive or legally binding.
19.4 Trademarks
Notice: All referenced brands, product names, service names and trademarks
are the property of their respective owners.
I2C-bus — logo is a trademark of NXP B.V.
20. Contact information
For additional information, please visit: http://www.nxp.com
For sales office addresses, send an email to: [email protected]
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
105 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
21. Contents
1
2
3
4
5
6
6.1
6.2
7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
7.11
7.12
7.13
7.14
7.15
7.16
7.17
7.18
7.19
7.20
7.21
7.22
7.23
7.24
7.25
7.26
7.27
7.28
7.29
7.30
7.31
7.32
7.33
7.34
7.35
8
General description . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Quick reference data . . . . . . . . . . . . . . . . . . . . . 2
Ordering information . . . . . . . . . . . . . . . . . . . . . 3
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pinning information . . . . . . . . . . . . . . . . . . . . . . 5
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5
Functional description . . . . . . . . . . . . . . . . . . . 7
FM mixer 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
FM RF AGC . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
FM mixer 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
FM IF2 channel filter . . . . . . . . . . . . . . . . . . . . . 7
FM limiter and level detection . . . . . . . . . . . . . . 8
FM demodulator . . . . . . . . . . . . . . . . . . . . . . . . 8
Center frequency and bandwidth tuning and
center frequency DAA. . . . . . . . . . . . . . . . . . . . 8
Bandwidth control algorithm . . . . . . . . . . . . . . . 8
VCO and dividers . . . . . . . . . . . . . . . . . . . . . . . 8
Crystal oscillator . . . . . . . . . . . . . . . . . . . . . . . . 8
Tuning PLL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Antenna DAA . . . . . . . . . . . . . . . . . . . . . . . . . . 9
AM RF AGC control . . . . . . . . . . . . . . . . . . . . . 9
AM mixer 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
AM IF noise blanker . . . . . . . . . . . . . . . . . . . . . 9
AM IF AGC amplifier and demodulator . . . . . . . 9
AM level detection. . . . . . . . . . . . . . . . . . . . . . . 9
AM and FM level DAA. . . . . . . . . . . . . . . . . . . . 9
AM and FM IF counter . . . . . . . . . . . . . . . . . . . 9
Tuning mute . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
FM stereo decoder . . . . . . . . . . . . . . . . . . . . . 10
FM and AM AF noise blanker . . . . . . . . . . . . . 10
Fixed high cut and high cut control . . . . . . . . . 10
De-emphasis. . . . . . . . . . . . . . . . . . . . . . . . . . 10
Weak signal processing . . . . . . . . . . . . . . . . . 10
Audio step interpolation . . . . . . . . . . . . . . . . . 11
Source selector. . . . . . . . . . . . . . . . . . . . . . . . 11
VU-meter read . . . . . . . . . . . . . . . . . . . . . . . . 11
Volume and balance . . . . . . . . . . . . . . . . . . . . 11
CD compression . . . . . . . . . . . . . . . . . . . . . . . 11
Bass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Treble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Loudness . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Fader. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
RDS/RBDS demodulator . . . . . . . . . . . . . . . . 12
I2C-bus protocol . . . . . . . . . . . . . . . . . . . . . . . . 12
8.1
Read mode. . . . . . . . . . . . . . . . . . . . . . . . . . .
8.1.1
Read mode: data byte IFCOUNTER . . . . . . .
8.1.2
Read mode: data byte LEVEL . . . . . . . . . . . .
8.1.3
Read mode: data byte USN/WAM . . . . . . . . .
8.1.4
Read mode: data byte MOD . . . . . . . . . . . . .
8.1.5
Read mode: data byte IFBW . . . . . . . . . . . . .
8.1.6
Read mode: data byte ID . . . . . . . . . . . . . . . .
8.1.7
Read mode: data byte TEMP . . . . . . . . . . . . .
8.2
Write mode. . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2.1
Mode and subaddress byte for write . . . . . . .
8.2.2
Write mode: data byte BANDWIDTH . . . . . . .
8.2.3
Write mode: data bytes PLLM and PLLL . . . .
8.2.4
Write mode: data byte DAA . . . . . . . . . . . . . .
8.2.5
Write mode: data byte AGC . . . . . . . . . . . . . .
8.2.6
Write mode: data byte BAND . . . . . . . . . . . . .
8.2.7
Tuning overview . . . . . . . . . . . . . . . . . . . . . . .
8.2.8
Write mode: data byte LEVELALGN . . . . . . .
8.2.9
Write mode: data byte IFCF . . . . . . . . . . . . . .
8.2.10
Write mode: data byte IFCAP . . . . . . . . . . . .
8.2.10.1 Factory alignment of bits IFCAP[3:0] . . . . . . .
8.2.10.2 Initialization of the radio . . . . . . . . . . . . . . . . .
8.2.10.3 Factory alignment of IFCF . . . . . . . . . . . . . . .
8.2.11
Write mode: data byte ACD . . . . . . . . . . . . . .
8.2.12
Write mode: data byte SENSE. . . . . . . . . . . .
8.2.13
Write mode: data byte TIMING . . . . . . . . . . .
8.2.14
Write mode: data byte SNC . . . . . . . . . . . . . .
8.2.15
Write mode: data byte HIGHCUT. . . . . . . . . .
8.2.16
Write mode: data byte SOFTMUTE . . . . . . . .
8.2.17
Write mode: data byte RADIO . . . . . . . . . . . .
8.2.18
Write mode: data byte INPUT . . . . . . . . . . . .
8.2.19
Write mode: data byte VOLUME . . . . . . . . . .
8.2.20
Write mode: data byte TREBLE . . . . . . . . . . .
8.2.21
Write mode: data byte BASS . . . . . . . . . . . . .
8.2.22
Write mode: data byte FADER . . . . . . . . . . . .
8.2.23
Write mode: data byte OUTPUT . . . . . . . . . .
8.2.24
Write mode: data byte BALANCE . . . . . . . . .
8.2.25
Write mode: data byte LOUDNESS . . . . . . . .
8.2.26
Write mode: data byte POWER . . . . . . . . . . .
8.2.27
Write mode: data bytes RESERVED . . . . . . .
8.2.28
Write mode: data byte TEST . . . . . . . . . . . . .
9
Limiting values . . . . . . . . . . . . . . . . . . . . . . . .
10
Thermal characteristics . . . . . . . . . . . . . . . . .
11
Static characteristics . . . . . . . . . . . . . . . . . . .
12
Dynamic characteristics . . . . . . . . . . . . . . . . .
12.1
Dynamic characteristics of the tuner . . . . . . .
12.2
Dynamic characteristics of the sound
processor . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13
14
16
17
18
20
20
21
21
27
34
36
36
37
38
39
40
40
40
41
41
41
42
42
44
45
47
50
54
56
58
65
66
68
68
69
69
72
72
73
73
74
74
76
76
85
continued >>
TEF6901A_3
Product data sheet
© NXP B.V. 2008. All rights reserved.
Rev. 03 — 20 March 2008
106 of 107
TEF6901A
NXP Semiconductors
Integrated car radio
13
14
15
16
17
17.1
17.2
17.3
17.4
18
19
19.1
19.2
19.3
19.4
20
21
I2C-bus characteristics . . . . . . . . . . . . . . . . . . 96
Overall system parameters . . . . . . . . . . . . . . . 98
Application information. . . . . . . . . . . . . . . . . . 99
Package outline . . . . . . . . . . . . . . . . . . . . . . . 101
Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Introduction to soldering . . . . . . . . . . . . . . . . 102
Wave and reflow soldering . . . . . . . . . . . . . . 102
Wave soldering . . . . . . . . . . . . . . . . . . . . . . . 102
Reflow soldering . . . . . . . . . . . . . . . . . . . . . . 103
Revision history . . . . . . . . . . . . . . . . . . . . . . . 104
Legal information. . . . . . . . . . . . . . . . . . . . . . 105
Data sheet status . . . . . . . . . . . . . . . . . . . . . 105
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Contact information. . . . . . . . . . . . . . . . . . . . 105
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
© NXP B.V. 2008.
All rights reserved.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: [email protected]
Date of release: 20 March 2008
Document identifier: TEF6901A_3
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