Data Sheet

INTEGRATED CIRCUITS
DATA SHEET
TEA6848H
New In Car Entertainment car radio
tuner IC with Precision Adjacent
Channel Suppression
(NICE-PACS)
Product specification
Supersedes data of 2004 Oct 21
2004 Nov 12
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
CONTENTS
1
FEATURES
2
GENERAL DESCRIPTION
3
ORDERING INFORMATION
4
QUICK REFERENCE DATA
5
BLOCK DIAGRAM
6
PINNING
7
FUNCTIONAL DESCRIPTION
7.1
7.1.1
7.1.2
7.1.3
7.2
7.3
7.3.1
7.3.2
7.3.9
7.3.10
7.4
7.4.1
7.4.2
7.4.3
7.4.4
7.5
7.6
7.7
Oscillators
VCO
PLL
Crystal oscillator
DAA
FM signal channel
FM mixer 1
Buffer output for weather band flag
(pin WBFLAG)
FM keyed AGC
FM IF amplifier
FM mixer 2
FM IF2 dynamic selectivity
FM quadrature demodulator
Adjacent channel detector and threshold
extension
Bandwidth control ‘active’ flag (pin IFBWFLAG)
Bandwidth control monitor voltage (pin VIFBW)
AM signal channel
AM tuner including mixer 1 and mixer 2
AM RF AGC
AM detector
AM noise blanker
FM and AM level detector
IF2 filter gain alignment
Frequency offset detector/alignment
8
LIMITING VALUES
9
THERMAL CHARACTERISTICS
10
DC CHARACTERISTICS
11
AC CHARACTERISTICS
7.3.3
7.3.4
7.3.5
7.3.6
7.3.7
7.3.8
2004 Nov 12
12
I2C-BUS PROTOCOL
12.1
12.1.1
12.1.2
12.1.3
12.1.4
12.1.5
12.2
12.2.1
12.2.2
12.2.3
12.2.4
12.2.5
12.2.6
12.2.7
12.2.8
12.2.9
12.2.10
I2C-bus specification
Data transfer
I2C-bus pull-up resistors
Frequency setting
Default settings
Timing requirements
I2C-bus protocol
Data transfer mode and IC address
Write mode: data byte 0
Write mode: data byte 1
Write mode: data byte 2
Write mode: data byte 3
Write mode: data byte 4
Write mode: data byte 5
Write mode: data byte 6
Write mode: data byte 7
Read mode: data byte 0
13
TEST AND APPLICATION INFORMATION
14
INTERNAL CIRCUITRY
15
PACKAGE OUTLINE
16
SOLDERING
16.1
Introduction to soldering surface mount
packages
Reflow soldering
Wave soldering
Manual soldering
Suitability of surface mount IC packages for
wave and reflow soldering methods
16.2
16.3
16.4
16.5
2
TEA6848H
17
DATA SHEET STATUS
18
DEFINITIONS
19
DISCLAIMERS
20
PURCHASE OF PHILIPS I2C COMPONENTS
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
1
FEATURES
• FM mixer 1 for conversion of FM RF (65 to 108 MHz
and US weather band) to IF of 10.7 MHz; the mixer
provides inherent image rejection; for European and
US FM band/WB (weather band) the mixer is driven with
a ‘high’ injection Local Oscillator (LO); in Japan
FM band and East Europe FM band the mixer is driven
with a ‘low’ injection LO
• AM cascode AGC stage and RF PIN diode drive circuit;
AGC threshold detection at AM mixer 1 and IF2 AGC
input; threshold for detection at mixer 1 input is
programmable via the I2C-bus
• AM mixer 1 for conversion of AM RF to AM IF1 of
10.7 MHz
• AM IF2 AGC and demodulator
• LC tuner oscillator providing mixer frequencies for
FM mixer and AM mixer 1
• AM AF output switchable to provide AM IF2 for
AM stereo decoder
• AM mixer 2 for conversion of AM IF1 to AM IF2 of
450 kHz
• AM noise blanker with detection at IF1 and blanking at
AM IF2
• Crystal oscillator providing mixer frequencies for
AM mixer 2 and FM mixer 2 and reference for
synthesizer PLL, IF count, timing for Radio Data System
(RDS) update and reference frequency for car audio
signal processor ICs
• Software controlled flag output
• Buffer output for weather band flag
• Adjacent channel detector, modulation detector and
frequency offset for instantaneous bandwidth control of
the integrated filter
• Fast synthesizer PLL tuning system with local control for
inaudible RDS updating
• Flag and voltage output indicating the actual bandwidth
• Timing function for RDS update algorithm and control
signal output for car audio signal processor ICs
(TEA688x, SAA77xx, TEF689x)
• I2C-bus alignment of centre frequency and gain variation
as functions of bandwidth of the IF2 filter and centre
frequency of the offset detector.
• Digital alignment circuit for bus controlled matching of
oscillator tuning voltage to FM antenna tank circuit
tuning voltage
2
GENERAL DESCRIPTION
The TEA6848H is a single IC with car radio tuner for AM,
FM and Weather Band (WB) intended for microcontroller
tuning with the I2C-bus. It provides the following functions:
• AGC PIN diode drive circuit for FM RF AGC; AGC
detection at FM mixer input; the AGC PIN diode drive
can be activated by the I2C-bus as a local function for
search tuning; AGC threshold is a programmable and
keyed function switchable via the I2C-bus
• AM double conversion receiver for LW, MW and SW
(31 m, 41 m and 49 m bands) with IF1 = 10.7 MHz and
IF2 = 450 kHz
• FM IF linear amplifier with high dynamic input range
• FM double conversion receiver with integrated image
rejection for IF1 and for IF2 capable of selecting US FM,
US weather, Europe FM, East Europe FM and
Japan FM bands; fully integrated dynamic selectivity at
450 kHz FM IF2; FM demodulator with dynamic
threshold extension; centre frequency alignment of IF2
selectivity via the I2C-bus
• FM mixer 2 for conversion of FM IF1 to FM IF2 of
450 kHz with inherent image rejection
• Fully integrated dynamic selectivity and
FM demodulator at IF2; improved sensitivity with
dynamic threshold extension; centre frequency of IF2
selectivity alignment via the I2C-bus
• Level detector for AM and FM with temperature
compensated output voltage; starting point and slope of
level output is programmable via the I2C-bus
3
TEA6848H
• The tuning system includes VCO, crystal oscillator and
PLL synthesizer on one chip.
ORDERING INFORMATION
TYPE NUMBER
TEA6848H
2004 Nov 12
PACKAGE
NAME
LQFP80
DESCRIPTION
plastic low profile quad flat package; 80 leads; body 12 × 12 × 1.4 mm
3
VERSION
SOT315-1
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
4
TEA6848H
QUICK REFERENCE DATA
SYMBOL
PARAMETER
VDDA(n)
analog supply voltage 1 to 4 and 6
IDDA(tot)
sum of analog supply
currents 1 to 4 and 6
VDDA5
analog supply voltage 5
IDDA5
analog supply current 5
VDDD
digital supply voltage
IDDD
digital supply current
fAM(ant)
AM input frequency
CONDITIONS
MIN.
TYP.
MAX.
UNIT
8
8.5
9
V
FM mode
45
56
67
mA
AM mode
40
50
60
mA
4.75
5
5.25
V
FM mode
−
7.4
−
mA
AM mode
−
11
−
mA
4.75
5
5.25
V
FM mode
21
26
31
mA
AM mode
22
27
32
mA
LW
0.144
−
0.288
MHz
MW
0.522
−
1.710
MHz
SW
5.730
−
9.99
MHz
MHz
fFM(ant)
FM input frequency
65
−
108
fFM(WB)(ant)
FM weather band input frequency
162.4
−
162.55
MHz
Tamb
ambient temperature
−40
−
+85
°C
AM overall system parameters; see Figs 10 and 11
(S+N)/N
signal plus noise-to-noise ratio
m = 0.3; BAF = 2.15 kHz
−
59
−
dB
THD
total harmonic distortion
m = 0.8; fmod = 1 kHz
−
0.3
−
%
Vsens(rms)
sensitivity (RMS value)
m = 0.3; fmod = 1 kHz;
(S+N)/N = 26 dB;
with European dummy
aerial 15 pF/60 pF;
BAF = 2.15 kHz
−
45
−
µV
FM overall system parameters; see Figs 10 and 11
(S+N)/N
signal plus noise-to-noise ratio
∆f = 22.5 kHz;
de-emphasis = 50 µs;
BAF = 300 Hz to 15 kHz
−
63
−
dB
THD
total harmonic distortion
∆f = 75 kHz;
with 2 × SFE10.7MS3
−
0.35
−
%
Vsens(rms)
sensitivity (RMS value)
∆f = 22.5 kHz;
fmod = 1 kHz;
(S+N)/N = 26 dB;
de-emphasis = 50 µs;
BAF = 300 Hz to 15 kHz;
with 75 Ω dummy antenna
−
1.4
2
µV
2004 Nov 12
4
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40
42
43
44
46
47
48
39 ANTENNA I C-bus
DAA
49
50
51
52
53
54
55
57
56
RDS
UPDATE
VCO
TUNING SYSTEM
2
DAATD
45
WB
58
TFMAGC
63
IFMAGC
WBFLAG
FMMIXIN2
i.c.
RFGND
FMMIXIN1
Vref(MIX)
AM
37
35
34
33
I2C-bus
LEVEL
TAFAMAGC
VAMCAS
×
÷1/ ÷2/
÷3
VAMCASFB
24
AMMIX1IN
AMMIX1DEC
SWFLAG
67
×
AM NOISE
DETECTOR
IF
FILTER
FM
MIXER 2
FM
DEMOD
23
BANDWIDTH
CONTROL
68
LEVEL
69
70
71
I2C-bus
PEAK/
AVERAGE
LEVEL
÷10/
÷20
65
66
90°
90°
AM
AGC
×
BLANK
PULSE
I2C-bus
20.5 MHz
÷2
CRYSTAL
OSCILLATOR
72
73
74
I2Cbus
AM
MIXER 2
LEVEL
DAA
STABI
×
75
I2C-bus
76
77
78
AM
22
MIXER 1
79
80
21
20
19
SCL
AM
BUFFER
MPXOUT
28
27
25
SDA
I2C-bus WB/JAPAN/OIRT
FM
26
64
IFBWFLAG
IF
COUNT
AM
DEMOD
FM
AGC
5
IAMAGC
THFAMAGC
I2C-BUS
VDDA6
TEA6848H
32
31
FM
30 I/Q MIXER 1
29
RDS
MUTE
MUX
38
36
60
61
62
17
18
16
15
14
13
12 11 10 9 8 7 6
5
4
3
2
1
VIFBW
IF2GND
CINT
MODETOUT
TACD
Vlevel(AMFM)
XTAL1
XTALGND
XTAL2
Vlevel(ACD)
ACDTHRES
IREF
AMMIX2OUT1
AMMIX2OUT2
CAGC
Vref(lim)
MIX1OUT1
IFAMPDEC
IF2FILQ
IFAMPIN
VDDA1
IFAMPOUT
AMNBHOLD
AMIF2IN
AMIF2DEC
IREFFMIF2
IFCDAATEST
IF1GND
FMMIX2DEC FMMIX2IN
COFFSET
Fig.1 Block diagram.
FMLIMDCFDB1
FMLIMDCFDB2
TEA6848H
VDDA2
IF2FILI
Product specification
MHC436
MIX1OUT2
handbook, full pagewidth
TKEYEDAGC
MODDET
POWER
SUPPLY
AMPLIFIER
x1/ x15
AM STEREO
DAAOUT
59
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
DAAIN
41
VDDA5
RDSMPX FMMPX
BLOCK DIAGRAM
Vtune
i.c.
MPXDCFDB
OSCTNK
VCOGND
AFSAMPLE TRDSMUTE
FREF
VDDA4
VDDD DGND
VDDA3
OSCFDB
AFHOLD
AMAFIF2
Philips Semiconductors
5
2004 Nov 12
CPOUT
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
6
TEA6848H
PINNING
SYMBOL
PIN
DESCRIPTION
FMLIMDCFDB1
1
decoupling in-phase FM limiter
FMLIMDCFDB2
2
decoupling quadrature phase FM limiter
AMIF2DEC
3
decoupling for AM IF2 input
IREFFMIF2
4
reference current for FM IF2
AMNBHOLD
5
AM noise blanker threshold
AMIF2IN
6
AM IF2 input (450 kHz) for demodulator AGC and AM level detector
IF1GND
7
AM IF1 ground
FMMIX2IN
8
FM mixer 2 input
COFFSET
9
DC feedback for offset compensation RDS mute
FMMIX2DEC
10
FM mixer 2 decoupling
IFCDAATEST
11
test pin for IF centre DAA
IFAMPOUT
12
IF amplifier output (10.7 MHz)
VDDA1
13
analog supply voltage 1 (8.5 V) for FM IF amplifier
IFAMPIN
14
FM IF amplifier and AM mixer 2 input (10.7 MHz)
IFAMPDEC
15
FM IF amplifier and AM mixer 2 decoupling
IF2FILQ
16
test output quadrature phase FM IF2 filter
IF2FILI
17
test output in-phase FM IF2 filter
MIX1OUT1
18
FM mixer and AM mixer 1 IF output 1 (10.7 MHz)
MIX1OUT2
19
FM mixer and AM mixer 1 IF output 2 (10.7 MHz)
VDDA2
20
analog supply voltage 2 (8.5 V) for FM and AM RF
SWFLAG
21
output software programmable flag
AMMIX1DEC
22
AM mixer 1 decoupling
AMMIX1IN
23
AM mixer 1 input
VAMCASFB
24
feedback for cascode AM AGC
VAMCAS
25
cascode AM AGC
TAFAMAGC
26
AF time constant of AM front-end AGC
THFAMAGC
27
HF time constant of AM front-end AGC
IAMAGC
28
PIN diode drive current output of AM front-end AGC
Vref(MIX)
29
reference voltage for FM RF mixer
FMMIXIN1
30
FM RF mixer input 1
RFGND
31
RF ground
i.c.
32
internal connection
FMMIXIN2
33
FM RF mixer input 2
WBFLAG
34
buffered weather band flag output
IFMAGC
35
PIN diode drive current output of FM front-end AGC
TFMAGC
36
time constant of FM front-end AGC
TKEYEDAGC
37
time constant of keyed FM front-end AGC
DAAOUT
38
output of digital auto alignment circuit for antenna tank circuit
DAATD
39
temperature compensation diode for digital auto alignment circuit for antenna tank circuit
DAAIN
40
input of digital auto alignment circuit for antenna tank circuit
2004 Nov 12
6
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
SYMBOL
PIN
TEA6848H
DESCRIPTION
i.c.
41
internal connection
Vtune
42
tuning voltage
CPOUT
43
charge pump output
VDDA3
44
analog supply voltage 3 (8.5 V) for tuning PLL
FREF
45
reference frequency output for signal processor IC
VDDD
46
digital supply voltage (5 V)
DGND
47
digital ground
VCOGND
48
VCO ground
OSCFDB
49
VCO feedback
OSCTNK
50
VCO tank circuit
VDDA4
51
analog supply voltage 4 (8.5 V) for VCO
MPXDCFDB
52
DC feedback for FM MPX signal path
AFSAMPLE
53
AF sample flag output for car audio signal processor IC
AFHOLD
54
AF hold flag output for car audio signal processor IC
TRDSMUTE
55
time constant for RDS update mute
AMAFIF2
56
AM demodulator AF output or IF2 output for AM stereo (multiplexed by I2C-bus)
RDSMPX
57
MPX output for RDS decoder and signal processor (not muted)
FMMPX
58
FM demodulator MPX output
VDDA5
59
analog supply voltage 5 (5 V) for on-chip power supply
MODDET
60
modulation detector input
VDDA6
61
analog supply voltage 6 (8.5 V) for on-chip power supply
IFBWFLAG
62
FM IF2 bandwidth flag output
SDA
63
I2C-bus data line input and output
SCL
64
I2C-bus clock line input
VIFBW
65
monitor voltage for FM IF2 bandwidth
IF2GND
66
AM IF2 ground
CINT
67
demodulator loop filter
MODETOUT
68
modulation detector output
TACD
69
adjacent channel detector time constant
Vlevel(AMFM)
70
level voltage output for AM and FM
XTAL1
71
crystal oscillator 1
XTALGND
72
crystal oscillator ground
XTAL2
73
crystal oscillator 2
Vlevel(ACD)
74
level voltage output for adjacent channel detector
ACDTHRES
75
adjacent channel detector threshold
IREF
76
reference current for power supply
AMMIX2OUT1
77
AM mixer 2 output 1 (450 kHz)
AMMIX2OUT2
78
AM mixer 2 output 2 (450 kHz)
CAGC
79
AM IF AGC capacitor/offset detector alignment (FM)
Vref(lim)
80
limiter reference voltage
2004 Nov 12
7
Philips Semiconductors
Product specification
61 VDDA6
62 IFBWFLAG
63 SDA
TEA6848H
64 SCL
65 VIFBW
66 IF2GND
67 CINT
68 MODETOUT
69 TACD
70 Vlevel(AMFM)
71 XTAL1
72 XTALGND
73 XTAL2
74 Vlevel(ACD)
75 ACDTHRES
76 IREF
77 AMMIX2OUT1
78 AMMIX2OUT2
handbook, full pagewidth
79 CAGC
80 Vref(lim)
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
FMLIMDCFDB1
1
60 MODDET
FMLIMDCFDB2
2
59 VDDA5
AMIF2DEC
3
58 FMMPX
IREFFMIF2
4
57 RDSMPX
AMNBHOLD
5
56 AMAFIF2
AMIF2IN
6
55 TRDSMUTE
IF1GND
7
54 AFHOLD
FMMIX2IN
8
53 AFSAMPLE
COFFSET
9
52 MPXDCFDB
51 VDDA4
FMMIX2DEC 10
TEA6848H
IFCDAATEST 11
50 OSCTNK
IFAMPOUT 12
49 OSCFDB
VDDA1 13
48 VCOGND
IFAMPIN 14
47 DGND
IFAMPDEC 15
46 VDDD
IF2FILQ 16
45 FREF
IF2FILI 17
44 VDDA3
MIX1OUT1 18
43 CPOUT
MIX1OUT2 19
42 Vtune
41 i.c.
Fig.2 Pin configuration.
2004 Nov 12
8
DAAIN 40
DAATD 39
DAAOUT 38
TKEYEDAGC 37
TFMAGC 36
IFMAGC 35
WBFLAG 34
FMMIXIN2 33
i.c. 32
RFGND 31
FMMIXIN1 30
Vref(MIX) 29
IAMAGC 28
THFAMAGC 27
TAFAMAGC 26
VAMCAS 25
VAMCASFB 24
AMMIX1IN 23
AMMIX1DEC 22
SWFLAG 21
VDDA2 20
MHC437
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
7
7.3
FUNCTIONAL DESCRIPTION
7.1
7.1.1
7.3.1
Oscillators
VCO
PLL
• US FM = 87.9 to 107.9 MHz
• US weather FM = 162.4 to 162.55 MHz
• Europe FM = 87.5 to 108 MHz
• Japan FM = 76 to 91 MHz
CRYSTAL OSCILLATOR
• East Europe FM = 65 to 74 MHz.
The crystal oscillator provides a 20.5 MHz signal that is
used for:
7.3.2
• Reference frequency for frequency synthesizer PLL
• Local oscillator for AM mixer 2 and FM mixer 2
• Timing signal for the RDS update algorithm
7.3.3
• Reference frequency (75.368 kHz) for the TEA688x (car
audio signal processor - CASP) or TEF689x (car radio
integrated signal processor - CRISP).
FM KEYED AGC
The AGC threshold is programmable and the keyed AGC
function is switchable via the I2C-bus. AGC detection
occurs at the input of the first FM mixer. If the keyed AGC
function is activated, the AGC is keyed only by the narrow
band level. The AGC PIN diode drive can be activated via
the I2C-bus as a local function for search tuning. The AGC
sources a constant 10 mA current into the FM PIN diode in
AM mode.
DAA
To reduce the number of manual alignments in production
the following I2C-bus controlled Digital Auto Alignment
(DAA) functions are included:
• FM RF DAA
7.3.4
– 7-bit DAA circuitry for the conversion of the VCO
tuning voltage to a controlled alignment voltage for
the FM antenna tank circuit
FM IF AMPLIFIER
The FM IF amplifier provides 18 dB amplification with high
linearity over a wide dynamic range.
• FM and AM level DAA
7.3.5
– Level DAA circuitry for alignment of slope (3-bit) and
starting point (5-bit) of the level curve
FM MIXER 2
The FM mixer 2 converts 10.7 MHz FM IF1 to 450 kHz
FM IF2 in I and Q phase to achieve image rejection in the
demodulator.
• IF2 centre DAA
– Centre frequency alignment (7-bit) of integrated
FM IF2 dynamic selectivity.
2004 Nov 12
BUFFER OUTPUT FOR WEATHER BAND FLAG
(PIN WBFLAG)
The buffer output on pin WBFLAG is HIGH for weather
band mode.
• Reference frequency for the IF counter
7.2
FM MIXER 1
It is capable of tuning the US FM, US weather,
Europe FM, Japan FM and East Europe FM bands:
Fast synthesizer PLL tuning system with local control for
inaudible RDS updating.
7.1.3
FM signal channel
FM quadrature mixer converts FM RF (65 to 108 MHz and
weather band) to IF of 10.7 MHz. The FM mixer provides
inherent image rejection and high RF sensitivity.
The varactor tuned VCO provides the local oscillator signal
for both FM and AM mixer 1. It has a frequency range of
162.9 to 248.2 MHz.
7.1.2
TEA6848H
9
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
7.3.6
7.4.2
FM IF2 DYNAMIC SELECTIVITY
FM QUADRATURE DEMODULATOR
The FM quadrature demodulator is adjustment free.
7.3.8
ADJACENT CHANNEL DETECTOR AND THRESHOLD
EXTENSION
In the event of breakthrough of a strong neighbouring
transmitter, the IF2 bandwidth is reduced dynamically.
At low RF input voltages and low modulation levels the IF2
bandwidth is reduced to achieve improved sensitivity by
demodulator threshold extension.
7.3.9
The AGC detection points for AM AGC are at the first AM
mixer input (threshold programmable via the I2C-bus) and
the IF2 AGC input (fixed threshold).
7.4.3
BANDWIDTH CONTROL ‘ACTIVE’ FLAG
(PIN IFBWFLAG)
7.4.4
BANDWIDTH CONTROL MONITOR VOLTAGE
(PIN VIFBW)
7.4.1
Trigger sensitivity can be modified by adding an external
resistor at pin AMNBHOLD.
AM signal channel
AM TUNER INCLUDING MIXER 1 AND MIXER 2
7.5
The AM tuner is realized in a double conversion technique
and is capable of selecting LW, MW and SW bands.
FM and AM level detector
FM and AM level detectors provide the temperature
compensated output voltage. The starting points and
slopes of the level detector outputs are programmable via
the I2C-bus.
AM mixer 1 converts AM RF to IF1 of 10.7 MHz, while
AM mixer 2 converts IF1 of 10.7 MHz to IF2 of 450 kHz:
• LW = 144 to 288 kHz
• MW = 530 to 1710 kHz (US AM band)
• SW = 5.73 to 9.99 MHz (including the 31 m, 41 m and
49 m bands).
2004 Nov 12
AM NOISE BLANKER
The detection point for the AM noise blanker is the output
stage of AM mixer 1, while blanking is realized at the
output of the mixer 2.
The actual bandwidth is indicated by a voltage at pin VIFBW
that is proportional, not linear, to the IF bandwidth.
7.4
AM DETECTOR
The AM output provides either a detected AM AF or the
corresponding AM IF2 signal. The IF2 signal can be used
for AM stereo decoder processing. Soft mute function is
controlled by the I2C-bus in AM mono mode.
Flag output IBFW = 1 from pin IFBWFLAG indicates that
the IF2 bandwidth is reduced.
7.3.10
AM RF AGC
The AM wideband AGC in front of the first AM mixer is
realized first by a cascaded NPN transistor, which controls
the transconductance of the RF amplifier JFET with 10 dB
of AGC range. Second, an AM PIN diode stage with
antenna type and frequency dependent AGC range is
available. The minimum JFET drain source voltage is
controlled by a DC feedback loop (pin VAMCASFB) in
order to limit the cascode AGC range to 10 dB. If the
cascode AGC is not required, a simple RF AGC loop is
possible by using only a PIN diode. In this event
pins VAMCASFB and VAMCAS have to be open-circuit.
In FM mode, the cascade switches off the JFET bias
current to reduce total power consumption. The PIN diode
is biased by 1 mA in FM mode.
The IF bandwidth of the FM IF2 is automatically adjusted
depending on modulation and reception conditions. The
centre frequency of the selectivity is adjusted by a 7-bit
instruction via the I2C-bus. The dynamic selectivity mode
and three fixed bandwidths (60, 90 and 130 kHz) can be
selected via the I2C-bus. The IF2 bandwidth is set to
13 kHz in weather band mode.
7.3.7
TEA6848H
10
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
7.6
IF2 filter gain alignment
7.7
The 4-bit filter gain alignment reduces the change in
IF filter gain spread when the bandwidth is changed in
dynamic mode from 155 kHz (maximum) to 25 kHz
(minimum).
TEA6848H
Frequency offset detector/alignment
A very strong undesired neighbouring signal causes offset
in the demodulator in case of weak desired input signal.
The frequency offset detector reduces the bandwidth of
the IF2 filter when the detected offset in the demodulator
is too large.
A frequency has to be chosen in the middle of
European/US FM band, Japan band or OIRT band (for
East Europe) and the IC has to be set into dynamic
bandwidth mode (IF2 bandwidth is 155 kHz).
There are four bits available for frequency offset detector
alignment. Every band has to be aligned separately.
Tuning has to be set to middle of the band, input signal
unmodulated, bit IFBW = 1 (alignment voltage will be
given to pin IFBWFLAG). The DC voltage at
pin IFBWFLAG has to be aligned to the minimum value.
Setting and clearing the FMBW bit continuously allows the
adjustment of the gain alignment to minimum change in
AM/FM DC level.
8 LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 60134).
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
VDDA1
analog supply voltage 1 for FM IF amplifier
−0.3
+10
V
VDDA2
analog supply voltage 2 for FM and AM RF
−0.3
+10
V
VDDA3
analog supply voltage 3 for tuning PLL
−0.3
+10
V
VDDA4
analog supply voltage 4 for voltage controlled
oscillator
−0.3
+10
V
VDDA5
analog supply voltage 5 for on-chip power supply
−0.3
+6.5
V
VDDA6
analog supply voltage 6 for on-chip power supply
−0.3
+10
V
VDDD
digital supply voltage
−0.3
+6.5
V
∆VDD8.5-DD5
difference between any 8.5 V supply voltage and
any 5 V supply voltage
−0.3
−
V
Tstg
storage temperature
−55
+150
°C
Tamb
ambient temperature
Ves
electrostatic handling voltage
note 1
−40
+85
°C
note 2
−200
+200
V
note 3
−2000
+2000
V
Notes
1. To avoid damage and wrong operation it is necessary to keep all 8.5 V supply voltages at a higher level than any 5 V
supply voltage. This is also necessary during power-on and power-down sequences. Precautions have to be
provided in such a way that interference cannot pull down the 8.5 V supply below the 5 V supply.
2. Machine model (R = 0 Ω, C = 200 pF).
3. Human body model (R = 1.5 kΩ, C = 100 pF).
9
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
Rth(j-a)
thermal resistance from junction to ambient
Rth(j-c)
thermal resistance from junction to case
2004 Nov 12
11
in free air
VALUE
UNIT
54
K/W
9
K/W
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
10 DC CHARACTERISTICS
VDDA(n) = 8.5 V; VDDA5 = 5 V; VDDD = 5 V; Tamb = 25 °C; tested in the circuit of Figs 10 and 11; unless otherwise
specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply voltage
VDDA(n)
analog supply voltages 1 to 4 and 6
8
8.5
9
V
VDDA5
analog supply voltage 5
4.75
5
5.25
V
VDDD
digital supply voltage
4.75
5
5.25
V
Supply current in FM mode
IDDD
digital supply current
Europe/US band
21
26
31
mA
Japan/East Europe band
26.5
33
39.5
mA
5.5
7.3
8.8
mA
IDDA1
analog supply current 1 for FM IF
amplifier
IDDA2
analog supply current 2 for FM RF
4.2
5.2
6.2
mA
IDDA3
analog supply current 3 for tuning PLL
3.2
4
4.8
mA
IDDA4
analog supply current 4 for VCO
5.2
6.5
7.8
mA
IDDA5
analog supply current 5 for on-chip
power supply
Europe/US band
−
3.8
−
mA
Japan/East Europe band
−
7.4
−
mA
IDDA6
analog supply current 6 for on-chip
power supply
21.5
27
32.5
mA
IMIX1OUT1
bias current of FM mixer output 1
4.8
6
7.2
mA
IMIX1OUT2
bias current of FM mixer output 2
4.8
6
7.2
mA
Supply current in AM mode
IDDD
digital supply current
22
27
32
mA
IDDA1
analog supply current 1 for
AM mixer 2
100
120
140
µA
IDDA2
analog supply current 2 for RF
1.4
1.8
2.2
mA
IDDA3
analog supply current 3 for tuning PLL
1.8
2.2
2.6
mA
IDDA4
analog supply current 4 for VCO
5
6.5
8
mA
IDDA5
analog supply current 5 for on-chip
power supply
−
11
−
mA
IDDA6
analog supply current 6 for on-chip
power supply
14
17.5
21
mA
IMIX1OUT1
bias current of AM mixer 1 output 1
4.8
6
7.2
mA
IMIX1OUT2
bias current of AM mixer 1 output 2
4.8
6
7.2
mA
IAMMIX2OUT1 bias current of AM mixer 2 output 1
3.6
4.5
5.4
mA
IAMMIX2OUT2 bias current of AM mixer 2 output 2
3.6
4.5
5.4
mA
On-chip power supply reference current generator: pin IREF
Vo(ref)
output reference voltage
RIREF = 120 kΩ
4
4.25
4.5
V
Ro
output resistance
RIREF = 120 kΩ
−
10
−
kΩ
Io(max)
maximum output current
RIREF = 120 kΩ
−100
−
+100
nA
2004 Nov 12
12
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
11 AC CHARACTERISTICS
VDDA(n) = VMIX1OUT1 = VMIX1OUT2 = VAMMIX2OUT1 = VAMMIX2OUT2 = 8.5 V; VDDD = VDDA5 = 5 V; Tamb = 25 °C; tested in the
circuit of Figs 10 and 11; all AC values are given in RMS; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Voltage controlled oscillator
fosc
oscillator frequency
C/N
carrier-to-noise ratio
RR
∆f osc
ripple rejection -----------f osc
162.9
−
248.2
fosc = 200 MHz; ∆f = 10 kHz
−
97
−
fripple = 100 Hz;
VDDA4(ripple) = 100 mV (RMS);
fosc = 200 MHz
92
99
−
dB
−
20.5
−
MHz
−
112
−
note 1
80
100
160
MHz
dBc
-----------Hz
Crystal oscillator
fxtal
crystal frequency
C/N
carrier-to-noise ratio
fxtal = 20.5 MHz; ∆f = 10 kHz
dBc
-----------Hz
CIRCUIT INPUTS: PINS XTAL1, XTALGND AND XTAL2
Vo(osc)(rms)
oscillator output voltage
(RMS value)
VXTAL1, VXTAL2
DC bias voltage
1.7
2.1
2.5
V
Ri
real part of input
impedance
VXTAL1 − VXTAL2 = 1 mV; note 1
−250
−
−
Ω
Ci
input capacitance
note 1
8
10
12
pF
mV
Synthesizer
PROGRAMMABLE DIVIDER
Nprog
programmable divider ratio
512
−
32767
∆Nstep
programmable divider step
size
−
1
−
CHARGE PUMP: PIN CPOUT
Isink(cp1)l
low charge pump 1 sink
current
0.4 V < VCPOUT < 7.6 V;
data byte 3: bit 0 = 0, bit 1 = 1,
bit 2 = 1 for FM weather band;
fVCO > fref × divider ratio
−
300
−
µA
Isource(cp1)l
low charge pump 1 source
current
0.4 V < VCPOUT < 7.6 V;
data byte 3: bit 0 = 0, bit 1 = 1,
bit 2 = 1 for FM weather band;
fVCO < fref × divider ratio
−
−300
−
µA
Isink(cp1)h
high charge pump 1 sink
current
0.4 V < VCPOUT < 7.6 V;
data byte 3: bit 0 = 1, bit 1 = 1,
bit 2 = 1; AM stereo mode;
VCO divider = 10 (LW and MW);
fVCO > fref × divider ratio
−
1
−
mA
2004 Nov 12
13
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
SYMBOL
PARAMETER
CONDITIONS
TEA6848H
MIN.
TYP.
MAX.
UNIT
Isource(cp1)h
high charge pump 1 source 0.4 V < VCPOUT < 7.6 V;
current
data byte 3: bit 0 = 1, bit 1 = 1,
bit 2 = 1; AM stereo mode;
VCO divider = 10 (LW and MW);
fVCO < fref × divider ratio
−
−1
−
mA
Isink(cp2)
charge pump 2 sink current 0.3 V < VCPOUT < 7.1 V;
data byte 3: bit 0 = 0, bit 1 = 0,
bit 2 = 0; FM standard mode;
fVCO > fref × divider ratio
−
130
−
µA
Isource(cp2)
charge pump 2 source
current
0.3 V < VCPOUT < 7.1 V;
data byte 3: bit 0 = 0, bit 1 = 0,
bit 2 = 0; FM standard mode;
fVCO < fref × divider ratio
−
−130
−
µA
Isink(cp3)
charge pump 3 sink current 0.4 V < Vtune < 7.6 V;
data byte 3: bit 0 = 0, bit 1 = 0,
bit 2 = 0; FM standard mode;
fVCO > fref × divider ratio
−
3
−
mA
Isource(cp3)
charge pump 3 source
current
0.4 V < Vtune < 7.6 V;
data byte 3: bit 0 = 0, bit 1 = 0,
bit 2 = 0; FM standard mode;
fVCO < fref × divider ratio
−
−3
−
mA
VDAAIN = 0.4 to 8 V
−10
−
+10
nA
0
−
8.5
V
CHARGE PUMP: PIN Vtune
Antenna Digital Auto Alignment (DAA)
DAA INPUT: PIN DAAIN
Ibias(cp)
charge pump buffer input
bias current
Vi(cp)
charge pump buffer input
voltage
DAA OUTPUT: PIN DAAOUT; note 2
Vo(AM)
DAA output voltage in
AM mode
IDAAOUT < 100 µA
−
−
0.3
V
Vo(FM)
DAA output voltage in
FM mode
minimum value;
data byte 2 = 10000000;
VDAAIN = 0.5 V; VDAATD = 0.45 V
−
−
0.5
V
maximum value;
data byte 2 = 11111111;
VDAAIN = 4.7 V; VDAATD = 0.45 V
8
−
8.5
V
data byte 2 = 10000000
−
0.65
−
V
data byte 2 = 11000000
3.8
4
4.2
V
data byte 2 = 11010101
2.3
2.6
2.9
V
data byte 2 = 10101010
1.2
1.4
1.6
V
VDAAIN = 4 V; VDAATD = 0.45 V
VDAAIN = 2 V; VDAATD = 0.45 V
2004 Nov 12
14
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
SYMBOL
PARAMETER
CONDITIONS
TEA6848H
MIN.
TYP.
MAX.
UNIT
Vo(n)
DAA output noise voltage
data byte 2 = 11000000;
FM mode; VDAAIN = 4 V;
VDAATD = 0.45 V;
B = 300 Hz to 22 kHz
−
30
100
µV
∆Vo(T)
DAA output voltage
variation with temperature
Tamb = −40 to +85 °C;
data byte 2 = 11000000
−8
−
+8
mV
∆Vo(step)
DAA step accuracy
n = 0 to 127; FM mode;
VDAAOUT = 0.5 to 8 V;
VDAAIN = 2 V; VDAATD = 0.45 V
0.5VLSB VLSB
1.5VLSB mV
∆Vo(sink)
DAA output variation
caused by sink current
VDAAIN = 4 V; IL = 50 µA
−VLSB
−
+VLSB
∆Vo(source)
DAA output variation
caused by source current
VDAAIN = 4 V; IL = −50 µA
−VLSB
−
+VLSB
tst
DAA output settling time
VDAAOUT = 0.2 to 8.25 V;
CL = 270 pF
−
20
30
µs
RR
V DAAOUT
ripple rejection ----------------------V DDA3
data byte 2 = 10101011;
FM mode; VDAAIN = 4 V;
VDAATD = 0.45 V; fripple = 100 Hz;
VDDA3(ripple) = 100 mV (RMS)
−
65
−
dB
CL
DAA output load
capacitance
−
−
270
pF
µA
DAA TEMPERATURE COMPENSATION: PIN DAATD
Isource
compensation diode
source current
VDAATD = 0.2 to 1.2 V
−50
−40
−30
TCsource
temperature coefficient of
compensation diode
source current
VDAATD = 0.2 to 1.2 V;
Tamb = −40 to +85 °C
−300
−
+300
−
8
−
bit
−
30
100
µV
prescaler ratio = 10
−
90
−
prescaler ratio = 40
−
22
−
prescaler ratio = 10
−
132
−
prescaler ratio = 40
−
225
−
–6
10
----------K
IF counter (FM IF2 or AM IF2 counter)
NIF
IF counter length for
AM and FM
PINS FMMIX2IN AND FMMIX2DEC; note 3
Vsens(rms)
sensitivity voltage
(RMS value)
FM mode
N
counter result (decimal)
period = 2 ms;
VFMMIX2IN-FMMIX2DEC = 100 µV
period = 20 ms;
VFMMIX2IN-FMMIX2DEC = 100 µV
2004 Nov 12
15
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
SYMBOL
PARAMETER
CONDITIONS
TEA6848H
MIN.
TYP.
MAX.
UNIT
PINS AMIF2IN AND AMIF2DEC; note 4
Vsens(rms)
sensitivity voltage
(RMS value)
AM mode; m = 0
−
30
70
µV
N
counter result (decimal)
period = 2 ms;
VAMIF2IN-AMIF2DEC = 200 µV
−
132
−
period = 20 ms;
VAMIF2IN-AMIF2DEC = 200 µV
−
40
−
−
272
−
fxtal = 20.5 MHz
−
75.368
−
kHz
not loaded
60
90
−
mV
3.2
3.4
3.7
V
Reference frequency for car signal processor IC TEA688x and TEF689x; note 5
REFERENCE FREQUENCY DIVIDER
Nref
crystal oscillator divider
ratio
fref
reference frequency
VOLTAGE GENERATOR: PIN FREF
Vo(p-p)
AC output voltage
(peak-to-peak value)
VO
DC output voltage
Ro
output resistance
−
−
50
kΩ
RL(min)
minimum load resistance
for first I2C-bus address
1
−
−
MΩ
Weather band flag: pin WBFLAG
Isource(max)
maximum source current
−
−5
−
mA
Ri(shunt)
internal shunt resistance to
ground
−
50
−
kΩ
Vo(max)
maximum output voltage
for FM mode
measured with respect to
pin RFGND
0
−
0.2
V
Vo
output voltage for weather
band mode
measured with respect to
pin RFGND
4
−
5
V
m = 0.3; data byte 4: bit 5 = 0,
bit 6 = 0
−
150
−
mV
m = 0.3; data byte 4: bit 5 = 1,
bit 6 = 0
−
275
−
mV
m = 0.3; data byte 4: bit 5 = 0,
bit 6 = 1
−
400
−
mV
m = 0.3; data byte 4: bit 5 = 1,
bit 6 = 1
−
525
−
mV
AGC start level
0.20
0.27
0.35
V
AM signal channel
AM RF AGC STAGE (PIN DIODE DRIVE)
Vi(p)
RF input voltage for
wideband AGC start level
(peak value)
AM IF AGC STAGE INPUT: PIN AMIF2IN
Vi(p)
2004 Nov 12
IF2 input voltage
(peak value)
16
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
SYMBOL
PARAMETER
CONDITIONS
TEA6848H
MIN.
TYP.
MAX.
UNIT
AM RF AGC CURRENT GENERATOR OUTPUT: PIN IAMAGC
Isink(max)
maximum AGC sink
current
Vo = 2.8 V
11
15
19
mA
Isink
AGC sink current
FM mode
1
−
−
mA
Ro
output resistance
Io = 1 µA
0.5
−
−
MΩ
Co
AM AGC current generator
output capacitance
−
5
7
pF
RF CASCODE AGC
AM cascode off current
FM mode
−
−
100
nA
Vcas(FB)
cascode feedback voltage
VAMMIX1IN-AMMIX1DEC above
threshold; minimum gain
−
0.26
−
V
Icas(FB)
cascode feedback sense
current
0
−
1
µA
−
5
−
V
100
−
−
µA
15
25
40
kΩ
Icas(off)
Pin VAMCASFB
Pin VAMCAS
Vcas
cascode voltage
Icas
cascode transistor base
current capability
VAMMIX1IN-AMMIX1DEC below
threshold; maximum gain
AM MIXER 1 (IF1 = 10.7 MHZ)
Mixer inputs: pins AMMIX1DEC and AMMIX1IN
Ri
input resistance
note 6
Ci
input capacitance
note 6
VI
DC input voltage
Vi(max)
maximum input voltage
1 dB compression point of
VMIX1OUT1-MIX1OUT2; m = 0
2.5
5
7.5
pF
2.3
2.7
3.1
V
500
−
−
mV
Mixer outputs: pins MIX1OUT1 and MIX1OUT2
Ro
output resistance
note 7
100
−
−
kΩ
note 7
−
4
7
pF
12
15
−
V
4.8
6
7.2
mA
2.0
2.55
3.2
mA
--------V
Co
output capacitance
Vo(max)(p-p)
maximum output voltage
(peak-to-peak value)
Ibias
mixer bias current
AM mode
Mixer
gm(conv)
2004 Nov 12
conversion
transconductance
I MIX1OUT
--------------------V MIX1IN
17
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
SYMBOL
PARAMETER
CONDITIONS
TEA6848H
MIN.
TYP.
138
−
dBµV
−
170
−
dBµV
−
5.8
8
nV
-----------Hz
−
4.5
7.1
dB
−
330
−
Ω
RL = 2.6 kΩ (AC load between
output pins); ∆f = 300 kHz
135
2nd-order intermodulation
RL = 2.6 kΩ (AC load between
output pins)
Vi(n)(eq)
equivalent input noise
voltage
band limited noise;
Rgen = 750 Ω; RL = 2.6 kΩ
(AC load between output pins)
F
noise figure of AM mixer 1
IP3
3rd-order intermodulation
IP2
UNIT
K−1
−9 ×
conversion
transconductance variation
with temperature
∆g m(conv)
--------------------------------g m(conv) × ∆T
MAX.
−
−
gm(conv)(T)
10−4
AM MIXER 2 (IF2 = 450 kHz)
Mixer inputs: pins IFAMPIN and IFAMPDEC
Ri
input resistance
note 8
Ci
input capacitance
note 8
VI
DC voltage
Vi(max)(p)
maximum input voltage
(peak value)
1 dB compression point of
VAMMIX2OUT1-AMMIX2OUT2
−
5
7
pF
2.4
2.7
3
V
1.1
1.4
−
V
Mixer outputs: pins AMMIX2OUT1 and AMMIX2OUT2
Ro
output resistance
note 9
50
−
−
kΩ
Co
output capacitance
note 9
−
4
7
pF
Vo(max)(p-p)
maximum output voltage
(peak-to-peak value)
VDDA6 = 8.5 V
12
15
−
V
Ibias
mixer bias current
AM mode
3.6
4.5
5.4
mA
1.9
mA
--------V
Mixer
gm(conv)
conversion
transconductance
I AMMIX2OUT
---------------------------V IFAMPIN
1.3
1.6
gm(conv)(T)
conversion
transconductance variation
with temperature
∆g m(conv)
--------------------------------g m(conv) × ∆T
−
−9 × 10−4 −
IP3
3rd-order intermodulation
RL = 1.5 kΩ (AC load between
output pins); ∆f = 300 kHz
134
137
−
dBµV
IP2
2nd-order intermodulation
RL = 1.5 kΩ (AC load between
output pins)
−
170
−
dBµV
Vi(n)(eq)
equivalent input noise
voltage
Rgen = 330 Ω; RL = 1.5 kΩ
(AC load between output pins)
−
15
22
nV
-----------Hz
2004 Nov 12
18
K−1
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
SYMBOL
PARAMETER
F
noise figure of AM mixer 2
IL
mixer leakage current
CONDITIONS
FM mode
TEA6848H
MIN.
TYP.
MAX.
UNIT
−
16
19.5
dB
−
−
10
µA
AM IF2 AGC STAGE: PINS AMIF2IN AND AMIF2DEC; note 4
Vi
input voltage
audio attenuation α = −10 dB
data byte 4: bit 4 = 1; mute on
−
25
40
µV
data byte 4: bit 4 = 0; mute off
−
6
10
µV
−
14
30
µV
VAGC(start)
AGC start voltage
input carrier voltage
VAGC(stop)
AGC stop voltage
maximum input peak voltage
1
−
−
V
VAGC(ctrl)
AGC control voltage
Vi = 1 mV
4.1
4.3
4.7
V
∆AGC
AGC range
between start and stop of AGC
−
89
−
dB
Ri
input resistance
1.8
2
2.2
kΩ
Ci
input capacitance
−
10
15
pF
(S+N)/N = 26 dB
−
45
65
µV
(S+N)/N = 46 dB
−
600
900
µV
−
60
−
dB
m = 0.8; fmod = 400 Hz
−
0.5
1
%
m = 0.8; fmod = 100 Hz
−
1.25
2.5
%
AM DETECTOR
Vsens(rms)
sensitivity voltage
(RMS value)
m = 0.3; fmod = 400 Hz;
BAF = 2.15 kHz; Rgen = 2 kΩ;
note 4
(S+N)/N
maximum signal plus
noise-to-noise ratio
m = 0.3; fmod = 400 Hz;
BAF = 2.15 kHz; Rgen = 2 kΩ
THD
total harmonic distortion
BAF = 2.15 kHz; CAGC = 10 µF;
VAMIF2IN = 100 µV to 250 mV
(RMS)
tsw
FM to AM switching time
VAMIF2IN = 100 µV; CAGC = 10 µF −
1000
1500
ms
tst
AM AGC settling time
VAMIF2IN = 100 µV to 100 mV
−
400
600
ms
VAMIF2IN = 100 mV to 100 µV
−
600
900
ms
minimum at VAMIF2IN = 14 µV
1.5
3
4.5
mV
maximum at VAMIF2IN = 5 mV
130
180
230
mV
AM mono; m = 0.3; data byte 3:
bit 0 = 1, bit 1 = 0, bit 2 = 1;
fmod = 400 Hz;
VAMIF2IN = 100 µV to 500 mV
(RMS)
200
250
300
mV
data byte 3: bit 0 = 1, bit 1 = 1,
bit 2 = 1; AM stereo
−
−
500
Ω
data byte 3: bit 0 = 1, bit 1 = 0,
bit 2 = 1; AM mono
−
−
500
Ω
Output: pin AMAFIF2
Vo(rms)
Ro
2004 Nov 12
AM IF2 output voltage
(RMS value)
output resistance
AM stereo; m = 0; data byte 3:
bit 0 = 1, bit 1 = 1, bit 2 = 1
19
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
SYMBOL
PARAMETER
CONDITIONS
TEA6848H
MIN.
TYP.
MAX.
UNIT
Co
output capacitance
data byte 3: bit 0 = 1, bit 1 = 0,
bit 2 = 1
−
5
7
pF
ZL
load impedance
data byte 3: bit 0 = 1, bit 1 = 0,
bit 2 = 1; AM mono
100
−
−
kΩ
data byte 3: bit 0 = 1, bit 1 = 1,
bit 2 = 1; AM stereo
10
−
−
kΩ
VDDA5(ripple) = 100 mV (RMS);
fripple = 100 Hz
−
24
−
dB
VDDA6(ripple) = 100 mV (RMS);
fripple = 100 Hz
−
26
−
dB
0
RR
ripple rejection
AM IF2 LEVEL DETECTOR OUTPUT: PIN Vlevel(AMFM); see Fig.4
Vlevel(AMFM)
DC output voltage
−
7
V
VAMIF2IN < 1 µV; standard setting 0.1
of level DAA
VAMIF2IN = 10 µV to 1 V
0.5
0.9
V
VAMIF2IN = 1.4 mV; standard
setting of level DAA
1.6
2.2
2.8
V
∆Vlevel(AMFM)
step size for adjustment of
level starting point
VAMIF2IN = 0 V; standard setting
of level slope
30
40
50
mV
Vlevel(slope)
slope of level voltage
VAMIF2IN = 140 µV to 140 mV;
standard setting of level slope
650
800
950
mV
--------------20 dB
∆Vstep
step size for adjustment of
level slope
VAMIF2IN = 1.4 mV
45
60
75
mV
--------------20 dB
Blevel(AMFM)
bandwidth of level output
voltage
VAMIF2IN = 15 mV; standard
setting of level DAA
200
300
−
kHz
Ro
output resistance
−
−
500
Ω
RR
V level
ripple rejection ---------------V DDA6
−
36
−
dB
4.3
4.6
5.1
V
VDDA6(ripple) = 100 mV (RMS);
fripple = 100 Hz
AM NOISE BLANKER; TEST SIGNAL AND TEST CIRCUIT; see Fig.5
Threshold: pin AMNBHOLD
VO
DC output voltage
tsup
suppression time
Vpulse = 200 mV (peak);
Vlevel(AMFM) < 1.8 V
6
7.5
10
µs
ftrigger
trigger sensitivity frequency Vpulse = 200 mV (peak);
Vleve(AMFM)l < 1.8 V
−
1000
−
Hz
Vpulse = 200 mV (peak);
Vlevel(AMFM) > 2.2 V
−
−
100
Hz
Vpulse = 20 mV (peak);
Vlevel(AMFM) < 1.8 V
−
−
100
Hz
35
50
65
µA
Noise detector output: pin TRDSMUTE
Isink(AGC)
2004 Nov 12
AM noise blanker AGC sink VTRDSMUTE = 3 V
current
20
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
SYMBOL
VAGC
PARAMETER
AM noise blanker AGC
voltage
CONDITIONS
AM mixer 1 input Vi = 0 V
TEA6848H
MIN.
TYP.
MAX.
UNIT
1.9
2.2
2.5
V
RF input voltage for start of data byte 4: bit 5 = 1, bit 6 = 1
wideband AGC
data byte 4: bit 5 = 0, bit 6 = 1
(RMS value)
data byte 4: bit 5 = 1, bit 6 = 0
−
3
−
mV
−
6
−
mV
−
9
−
mV
data byte 4: bit 5 = 0, bit 6 = 0
−
12
−
mV
4
5
6
kΩ
data byte 4: bit 5 = 0, bit 6 = 0;
VFMMIXIN1-FMMIXIN2 = 0 V
4.1
4.6
5.1
V
VIFMAGC = 2.5 V;
VTFMAGC = VO(ref) − 0.5 V;
data byte 4: bit 5 = 0, bit 6 = 0,
bit 7 = 0
8
11.5
15
mA
Isource(AGC)(max) maximum AGC source
current
VIFMAGC = 2.5 V;
VTFMAGC = VO(ref) + 0.5 V;
data byte 4: bit 5 = 0, bit 6 = 0,
bit 7 = 0
−15
−11.5
−8
mA
Isource(AGC)
AM mode
−15
−11.5
−8
mA
VIFMAGC = 2.5 V; data byte 4:
bit 3 = 1 (FM local)
−0.65
−0.5
−0.35
mA
data byte 4: bit 5 = 0, bit 6 = 0,
bit 7 = 1; keyed AGC
500
950
1400
mV
FM signal channel
FM RF AGC (FM DISTANCE MODE; DATA BYTE 4: BIT 3 = 0)
Inputs: pins FMMIXIN1 and FMMIXIN2; note 10
Vi(RF)(rms)
Pin TFMAGC
Rsource
source resistance
VO(ref)
DC output reference
voltage
PIN diode drive output: pin IFMAGC
Isink(AGC)(max)
maximum AGC sink
current
AGC source current
Level voltage output: pin Vlevel(AMFM)
Vth
threshold voltage for
narrow-band AGC
FM RF MIXER
Reference voltage: pin Vref(MIX)
Vref
reference voltage
FM mode
6.5
7.1
7.9
V
AM mode
2.7
3.1
3.4
V
70
100
−
mV
−
2.6
3.1
nV
-----------Hz
Inputs: pins FMMIXIN1 and FMMIXIN2; note 10
Vi(RF)(max)
maximum RF input voltage 1 dB compression point of
FM mixer output voltage
(peak-to-peak value)
Vi(n)(eq)
equivalent input noise
voltage
Ri
input resistance
1.4
2.8
4.2
kΩ
Ci
input capacitance
−
5
7
pF
2004 Nov 12
Rgen = 200 Ω; RL = 2.6 kΩ
21
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
SYMBOL
PARAMETER
CONDITIONS
TEA6848H
MIN.
TYP.
MAX.
UNIT
Outputs: pins MIX1OUT1 and MIX1OUT2; note 7
Ro
output resistance
100
−
−
kΩ
Co
output capacitance
2
3.5
5
pF
Ibias
mixer bias current
4.8
6
7.2
mA
Vo(max)(p-p)
maximum output voltage
(peak-to-peak value)
3
−
−
V
gm(conv)
conversion
transconductance
8.5
12.5
18
mA
--------V
gm(conv)(T)
conversion
transconductance variation
with temperature
−
−1 × 10−3 −
K−1
F
noise figure
−
3
4.6
dB
Rgen(opt)
optimum generator
resistance
−
200
−
Ω
IP3
3rd-order intermodulation
113
116
−
dBµV
IRR
image rejection ratio
V MIX1OUTwanted
-------------------------------------V MIX1OUTimage
25
30
−
dB
data byte 3 = X010X110;
22
fRFwanted = 162.475 MHz;
fRFimage = 183.875 MHz; weather
band mode; fref = 25 kHz
30
−
dB
RL = 330 Ω; VIFAMPIN = 1 mV;
note 8
15
17
19
dB
FM mode
FM mixer
fRFwanted = 87.5 MHz;
fRFimage = 108.9 MHz
IF AMPLIFIER
G
gain
F
noise figure
−
10
13
dB
IP3
3rd-order intermodulation
113
116
−
dBµV
Inputs: pins IFAMPIN and IFAMPDEC; note 8
Vi(max)(p)
maximum input voltage
(peak value)
1 dB compression point of
IF amplifier output voltage
(peak value)
200
−
−
mV
Vi(n)(eq)
equivalent input noise
voltage
Rgen = 330 Ω; RL = 330 Ω
−
8
10
nV
-----------Hz
Ri
input resistance
270
330
390
Ω
Ci
input capacitance
−
5
7
pF
Output: pin IFAMPOUT
Vo(max)(p)
maximum output voltage
(peak value)
1.2
1.5
−
V
Ro
output resistance
270
330
390
Ω
Co
output capacitance
−
5
7
pF
2004 Nov 12
22
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
SYMBOL
PARAMETER
CONDITIONS
TEA6848H
MIN.
TYP.
MAX.
UNIT
Tunable filter
Bmax
maximum bandwidth
data byte 4: bit 1 = 0, bit 0 = 0;
dynamic mode
−
160
−
kHz
Bmin
minimum bandwidth
data byte 4: bit 1 = 0, bit 0 = 0;
dynamic mode; VTACD = 4.2 V
−
25
−
kHz
B13
bandwidth in weather band
mode
−
13
−
kHz
B60
bandwidth in narrow band
mode
data byte 4: bit 1 = 1, bit 0 = 1
−
60
−
kHz
B90
bandwidth in mid band
mode
data byte 4: bit 1 = 1, bit 0 = 0
−
90
−
kHz
B130
bandwidth in wideband
mode
data byte 4: bit 1 = 0, bit 0 = 1
−
130
−
kHz
monitor output voltage for
IF2 bandwidth
fixed bandwidth = narrow
−
1.35
−
V
PIN VIFBW
Vo
Ro
fixed bandwidth = mid
−
0.94
−
V
fixed bandwidth = wide
−
0.55
−
V
−
5
−
kΩ
output resistance
Adjacent channel detector
MODULATION DETECTOR INPUT: PIN MODDET
Ri
input resistance
−
42.4
−
kΩ
Ci
input capacitance
−
5
7
pF
−
33.9
−
kΩ
MODULATION DETECTOR OUTPUT: PIN MODETOUT
Ro
output resistance
DETECTOR ADJUST: PIN ACDTHRES
Ri
input resistance
6.2
7.8
9.4
kΩ
Ci
input capacitance
−
5
7
pF
−
4.5
−
µV
Rgen = 165 Ω;
(S+N)/N = 26 dB
−
11
−
µV
(S+N)/N = 46 dB
−
90
−
µV
FM demodulator and level detector; see Figs 6 and 7
FM DEMODULATOR
FM mixer 2 input: pins FMMIX2IN and FMMIX2DEC; note 3
αAF = −3 dB
Vstart(lim)(rms)
start of limiting of RDS
MPX output voltage
(RMS value)
Vo(sens)(rms)
sensitivity for RDS MPX
∆f = 22.5 kHz; fmod = 1 kHz;
output voltage (RMS value) de-emphasis = 50 µs
2004 Nov 12
23
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
SYMBOL
PARAMETER
CONDITIONS
TEA6848H
MIN.
TYP.
MAX.
UNIT
RDS MPX output: pin RDSMPX
65
68
−
dB
−
0.35
0.7
%
VFMMIX2IN = 30 to 70 µV
20
30
−
dB
VFMMIX2IN = 70 to 500 µV
30
40
−
dB
VFMMIX2IN = 500 µV to 300 mV 35
45
−
dB
VFMMIX2IN = 300 mV to 1 V
40
−
dB
(S+N)/N
maximum signal plus
∆f = 22.5 kHz; fmod = 1 kHz;
noise-to-noise ratio of RDS de-emphasis = 50 µs;
MPX output voltage
VFMMIX2IN = 10 mV
THD
total harmonic distortion of
RDS MPX output voltage
∆f = 75 kHz; fmod = 1 kHz;
de-emphasis = 50 µs;
VFMMIX2IN = 200 µV to 800 mV
αAM
AM suppression
V o(rms)
--------------------------V o(AM)(rms)
FM: ∆f = 22.5 kHz; fmod = 1 kHz;
AM: m = 0.3; fmod = 1 kHz;
de-emphasis = 50 µs
Vo(rms)
RDS MPX output voltage
(RMS value)
30
VFMMIX2IN = 20 µV to 1 V; note 3
∆f = 5 kHz; fmod = 57 kHz
45
50
55
mV
∆f = 22.5 kHz; fmod = 1 kHz
205
230
255
mV
−
µA
Io(max)(rms)
maximum RDS MPX
output current (RMS value)
100
−
Ro
output resistance
−
−
500
Ω
RL
load resistance
20
−
−
kΩ
CL
load capacitance
−
−
50
pF
B
bandwidth RDS MPX
output
CL = 0; RL > 20 kΩ
200
300
−
kHz
PSRR
power supply ripple
rejection
fripple = 100 Hz to 20 kHz
−
40
−
dB
FM MPX output: pin FMMPX; note 3
(S+N)/N
maximum signal plus
noise-to-noise ratio of
FM MPX output voltage
∆f = 22.5 kHz; fmod = 1 kHz;
de-emphasis = 50 µs;
VFMMIX2IN = 10 mV
65
68
−
dB
THD
total harmonic distortion of
FM MPX output voltage
∆f = 75 kHz; fmod = 1 kHz;
de-emphasis = 50 µs;
VFMMIX2IN = 200 µV to 800 mV
−
0.1
0.3
%
αAM
AM suppression
V o(rms)
--------------------------V o(AM)(rms)
FM: ∆f = 22.5 kHz; fmod = 1 kHz;
AM: m = 0.3; fmod = 1 kHz;
de-emphasis = 50 µs
VFMMIX2IN = 30 to 70 µV
20
30
−
dB
VFMMIX2IN = 70 to 500 µV
30
40
−
dB
VFMMIX2IN = 500 µV to 300 mV 35
45
−
dB
VFMMIX2IN = 300 mV to 1 V
40
−
dB
2004 Nov 12
24
30
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
SYMBOL
Vo(rms)
PARAMETER
FM MPX output voltage
(RMS value)
CONDITIONS
TEA6848H
MIN.
TYP.
MAX.
UNIT
∆f = 22.5 kHz; fmod = 1 kHz;
VFMMIX2IN = 20 µV to 1 V
205
230
255
mV
∆f = 1.5 kHz; fmod = 1 kHz;
VFMMIX2IN = 20 µV to 1 V;
weather band mode
150
230
310
mV
100
−
−
µA
Io(max)
maximum FM MPX output
current
B
bandwidth FM MPX output
CL = 0; RL > 20 kΩ
200
−
−
kHz
PSRR
power supply ripple
rejection
fripple = 100 Hz to 20 kHz
−
40
−
dB
RL
load resistance
20
−
−
kΩ
Ro
output resistance
−
−
500
Ω
CL
load capacitance
−
−
50
pF
tsw
AM to FM switching time
VFMMIX2IN = 100 µV
−
100
150
ms
αmute
muting depth
data byte 2: bit 7 = 1 (mute)
60
80
−
dB
Voffset(DC)
DC offset during RDS
update mute pin FMMPX
∆V = Vmuted − Vnotmuted
−30
−
+30
mV
no mute
5.2
5.7
6.2
V
mute
0.7
1.2
1.7
V
MPX mute
RDS update: pin TRDSMUTE
VTRDSMUTE
voltage at pin TRDSMUTE
Idch
discharge current
Vo = 3 V; data byte 2: bit 7 = 1
24
32
38
µA
Ich
charge current
Vo = 3 V; data byte 2: bit 7 = 0
−38
−32
−24
µA
VFMMIX2IN = 10 µV to 1 V
0
−
7
V
VFMMIX2IN < 1 µV; standard
setting of level DAA
0.1
0.35
0.9
V
VFMMIX2IN = 1 mV; standard
setting of level DAA
1
1.5
2.1
V
FM IF LEVEL DETECTOR OUTPUT: PIN Vlevel(AMFM); note 3
Vlevel(AMFM)
DC output voltage
∆Vlevel(AMFM)
step size of starting point
adjustment
data byte 5: bit 2 = 1, bit 1 = 0,
bit 0 = 0
30
40
50
mV
Vlevel(slope)
slope of level voltage
∆V level(AMFM)
--------------------------------∆V FMMIX2IN
VFMMIX2IN = 1 to 300 mV;
standard setting of level slope
650
800
950
mV
--------------20 dB
∆Vstep
step size of slope
adjustment
VFMMIX2IN = 1 mV
45
60
75
mV
--------------20 dB
Blevel(AMFM)
bandwidth of level output
voltage
VFMMIX2IN = 10 mV; standard
setting of level DAA
200
300
−
kHz
Isource
output source current
−
−
−300
µA
Isink
output sink current
50
−
−
µA
Ro
output resistance
−
−
500
Ω
2004 Nov 12
25
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
SYMBOL
RR
PARAMETER
ripple rejection
CONDITIONS
TEA6848H
MIN.
TYP.
MAX.
UNIT
−
40
−
dB
6.4
8
9.6
kΩ
after first bus transmission with
data byte 0: bit 7 = 1 (start of
RDS update); Vo = 0.5 V
1.0
1.2
1.4
mA
no RDS update in progress;
Vo = 0.5 V
1.0
1.2
1.4
mA
fripple = 100 Hz;
VDDA6(ripple) = 100 mV (RMS)
PIN Vlevel(ACD)
Ro
output resistance
RDS update
Output: pin AFHOLD
Isink(max)
maximum sink current
Output: pin AFSAMPLE
Isink(max)
maximum sink current
Notes
1. Measured between pins XTAL1 and XTAL2.
n
2. DAA conversion gain formula: V DAAOUT = 2 ×  0.75 × ---------- + 0.125 × ( V DAAIN + V DAATD ) – V DAATD ; where


128
n = 0 to 127.
3. Input parameters of FM mixer 2 measured between pins FMMIX2IN and FMMIX2DEC.
4. Input parameters of AM IF2 measured between pins AMIF2IN and AMIF2DEC.
5. Reference frequency pin FREF: Rext = 68 kΩ connected to ground activates the 2nd I2C-bus address.
6. Input parameters of AM mixer 1 measured between pins AMMIX1DEC and AMMIX1IN.
7. Output parameters of FM mixer and AM mixer 1 measured between pins MIX1OUT1 and MIX1OUT2.
8. Input parameters of AM mixer 2 measured between pins IFAMPIN and IFAMPDEC.
9. Output parameters of AM mixer 2 measured between pins AMMIX2OUT1 and AMMIX2OUT2.
10. Input parameters of FM mixer measured between pins FMMIXIN1 and FMMIXIN2.
2004 Nov 12
26
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
MHC438
10
−10
8
Vlevel(AMFM)
(V)
7
THD
(%)
6
−20
5
handbook, full pagewidth
VAMAFIF2
(dB)
0
(1)
(2)
−30
4
(3)
−40
3
(4)
−50
2
(5)
−60
−70
10−3
1
(6)
10−2
10−1
1
10
0
103
102
VAMIF2IN (mV)
(1)
(2)
(3)
(4)
(5)
(6)
AF: fIF = 450 kHz; m = 0.3; fmod = 1 kHz; soft mute off.
AF: fIF = 450 kHz; m = 0.3; fmod = 1 kHz; soft mute on.
Noise: unweighted B = 2.15 kHz; soft mute off.
Noise: unweighted B = 2.15 kHz; soft mute on.
Level detector output voltage, default setting.
THD: m = 0.8.
Fig.3 AM detector and level output.
2004 Nov 12
27
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
MHC439
6
handbook, full pagewidth
Vlevel(AMFM)
(V)
5
4
(1)
3
(2)
2
(3)
1
0
10 −3
10 −2
10 −1
1
10 2
10
VAMIF2IN (mV)
10 3
(1) Level DAA setting byte 5 = FFH.
(2) Level DAA setting byte 5 = 84H (standard setting).
(3) Level DAA setting byte 5 = 00H.
Fig.4 AM level voltage.
handbook, full pagewidth
Trep
70
Vlevel(AMFM)
71
Vpulse
TEA6848H
73
1 kΩ
VXTAL2
77
test signal
1 kΩ
78
18
50 Ω
oscilloscope,
counter
4.7 nF
100 Ω
Vpulse
MHC440
100 Ω
VIFAMPIN
8.5 V
Test signal: Trep = 2 ms, tr < 50 ns, tf < 50 ns and duty factor 50%.
VIFAMPIN = 4 V and VXTAL2 = 3 V.
Fig.5 Test circuit for AM noise blanker.
2004 Nov 12
8.5 V
14
19
28
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
MHC441
6
Vlevel(AMFM)
(V)
handbook, full pagewidth
5
(1)
4
(2)
3
2
(3)
1
0
10−3
10−2
10−1
1
10
102
103
VFMMIX2IN (mV)
(1) Level DAA setting byte 5 = FFH.
(2) Level DAA setting byte 5 = 84H (standard setting).
(3) Level DAA setting byte 5 = 00H.
Fig.6 FM level voltage.
2004 Nov 12
29
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
MHC442
10
FMMPX;
VRDSMPX
(dB) 0
−10
9
Vlevel(AMFM)
(V)
8
THD
(%)
7
−20
6
handbook,
full pagewidth
V
(1)
(2)
−30
5
(3)
−40
4
−50
3
−60
2
(4)
−70
1
(5)
−80
10−3
10−2
10−1
1
10
0
103
102
VFMMIX2IN (mV)
(1)
(2)
(3)
(4)
(5)
Output voltage for FMMPX and RDSMPX: fIF = 10.7 MHz; ∆f = 22.5 kHz; fmod = 1 kHz.
Noise: unweighted B = 250 Hz to 15 kHz with de-emphasis 50 µs for FMMPX.
Noise: unweighted B = 250 Hz to 15 kHz with de-emphasis 50 µs for RDSMPX.
THD for FMMPX and RDSMPX.
Level for standard setting of level DAA, byte 5 = 84H.
Fig.7 (S+N)/N, THD and level voltage for FM mode as a function of FM demodulator input voltage.
2004 Nov 12
30
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
12 I2C-BUS PROTOCOL
12.1
12.1.2
Information about the I2C-bus can be found in the brochure
“The I2C-bus and how to use it” (order number
9398 393 40011).
The standard I2C-bus specification is expanded by the
following definitions.
IC addresses:
• 1st IC address C2H: 1100001 R/W
12.1.3
• 2nd IC address C0H: 1100000 R/W.
Structure of the
increment.
logic: slave transceiver with auto
• First: bit MUTE = 1
A second I2C-bus address can be selected by connecting
pin FREF via a 68 kΩ resistor to GND.
• Second: bit MUTE = 0.
12.1.4
DATA TRANSFER
DEFAULT SETTINGS
No default settings at power-on reset. One I2C-bus
transmission is required to program the IC.
Data sequence: address, byte 0, byte 1, byte 2, byte 3,
byte 4, byte 5, byte 6, and byte 7. The data transfer has to
be in this order. The LSB = 0 indicates a WRITE operation
to the TEA6848H.
12.1.5
Table 1
Bit 7 of each byte is considered the MSB and has to be
transferred as the first bit of the byte.
TIMING REQUIREMENTS
Timing requirements of I2C-bus software
FUNCTION
TIMING
Switching from 400 ms (10 µF at pin CAGC)
FM to AM
The data becomes valid at the output of the internal
latches with the acknowledge of each byte. A STOP
condition after any byte can shorten transmission times.
Switching from 100 ms (10 µF at pin CAGC; wideband
AM to FM
position has to be set for at least
100 ms to activate speed-up circuitry)
When writing to the transceiver by using the STOP
condition before completion of the whole transfer:
Start-up in FM
mode
• The remaining bytes will contain the old information
• If the transfer of a byte is not completed, this byte is lost
and the previous information is available.
2004 Nov 12
FREQUENCY SETTING
For new frequency setting, in both AM and FM mode, the
programmable divider is enabled by setting bit MUTE = 1.
To select an FM frequency, two I2C-bus transmissions are
necessary:
Subaddresses are not used.
12.1.1
I2C-BUS PULL-UP RESISTORS
When the IC is used together with the TEA688x or
TEF689x and both SCL and SDA lines are connected via
the I2C-bus to the TEA688x or TEF689x, the pull-up
resistors of the tuner IC should be connected to the digital
supply voltage of the TEA688x or TEF689x. Otherwise an
I2C-bus pull-down can occur switching off the tuner IC
supply when the I2C-bus buffer interface of the TEA688x
or TEF689x is enabled for data transfer to the tuner IC.
I2C-bus specification
I2C-bus
TEA6848H
wideband position has to be set for at
least 100 ms to activate speed-up
circuitry
Switching to
500 µs (18 nF at pin TACD; wideband
dynamic mode position has to be set for at least
500 µs to activate clamping circuitry at
pin TACD)
31
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
I2C-bus protocol
12.2
12.2.1
DATA TRANSFER MODE AND IC ADDRESS
Table 2
Write mode
S(1)
address (write)
A(2)
address (read)
A(2)
data byte 1
0
0
0
0/1(1)
R/W(2)
data byte(s)
A(2)
P(3)
Notes
1. S = START condition.
2. A = acknowledge.
3. P = STOP condition.
Table 3
Read mode
S(1)
Notes
1. S = START condition.
2. A = acknowledge.
Table 4
IC address byte
IC ADDRESS
1
1
0
MODE
Notes
1. Defined by address pin FREF:
a) 1 = 1st IC address
b) 0 = 2nd IC address.
2. Read or write mode:
a) 0 = write operation to TEA6848H
b) 1 = read operation from TEA6848H.
12.2.2
WRITE MODE: DATA BYTE 0
Table 5
Format of data byte 0
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
AF
PLL14
PLL13
PLL12
PLL11
PLL10
PLL9
PLL8
Table 6
Description of data byte 0 bits
BIT
SYMBOL
7
AF
Alternative frequency. If AF = 0, then normal operation. If AF = 1, then AF (RDS)
update mode.
6 to 0
PLL[14:8]
Setting of programmable counter of synthesizer PLL. Upper byte of PLL divider
word.
2004 Nov 12
DESCRIPTION
32
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
12.2.3
TEA6848H
WRITE MODE: DATA BYTE 1
Table 7
Format of data byte 1
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
PLL7
PLL6
PLL5
PLL4
PLL3
PLL2
PLL1
PLL0
Table 8
Description of data byte 1 bits
BIT
SYMBOL
7 to 0
PLL[7:0]
DESCRIPTION
Setting of programmable counter of synthesizer PLL. Lower byte of PLL divider
word.
WRITE MODE: DATA BYTE 2
12.2.4
Table 9
Format of data byte 2
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
MUTE
DAA6
DAA5
DAA4
DAA3
DAA2
DAA1
DAA0
Table 10 Description of data byte 2 bits
BIT
SYMBOL
7
MUTE
6 to 0
DAA[6:0]
12.2.5
DESCRIPTION
FM audio mute. If MUTE = 0, then FM audio not muted. If MUTE = 1, then FM audio
muted; writing to programmable divider and antenna DAA enabled.
Setting of antenna digital auto alignment.
WRITE MODE: DATA BYTE 3
Table 11 Format of data byte 3
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
IFMT
FREF2
FREF1
FREF0
IFPR
BND1
BND0
AMFM
Table 12 Description of data byte 3 bits
BIT
SYMBOL
7
IFMT
6 to 4
FREF[2:0]
3
IFPR
IF counter prescaler ratio. If IFPR = 0, then IF prescaler ratio is 40. If IFPR = 1, then
IF prescaler ratio is 10.
2 and 1
BND[1:0]
Band switch. These 2 bits select in FM mode band and local or distant, see Table 14; in
AM mode band and AM stereo, see Table 15.
0
AMFM
2004 Nov 12
DESCRIPTION
IF measuring time. If IFMT = 0, then IF measuring time is 20 ms. If IFMT = 1, then
IF measuring time is 2 ms.
Reference frequency for synthesizer. These 3 bits determine the reference
frequency, see Table 13.
AM or FM switch. If AMFM = 0, then FM mode. If AMFM = 1, then AM mode.
33
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
Table 13 Reference frequency setting
FREF2
FREF1
FREF0
fref (kHz)
0
0
0
100
1
0
0
50
0
1
0
25
1
1
0
20
0
0
1
10
1
0
1
10
0
1
1
10
1
1
1
10
FREQUENCY BAND
VCO DIVIDER
CHARGE PUMP CURRENT
Table 14 FM mode
BND1
BND0
0
0
FM standard
2
130 µA + 3 mA
0
1
FM Japan
3
130 µA + 3 mA
1
0
FM East Europe
3
1 mA
1
1
FM weather
1
300 µA
VCO DIVIDER
CHARGE PUMP CURRENT
10
1 mA
Table 15 AM mode
BND1
BND0
0
0
AM SW mono
0
1
AM SW stereo
10
1 mA
1
0
AM LW/MW mono
20
1 mA
1
1
AM LW/MW stereo
20
1 mA
12.2.6
FREQUENCY BAND
WRITE MODE: DATA BYTE 4
Table 16 Format of data byte 4
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
KAGC
AGC1
AGC0
AMSM/FMBW
LODX
FLAG
BW1
BW0
2004 Nov 12
34
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
Table 17 Description of data byte 4 bits
BIT
SYMBOL
7
KAGC
6 and 5
AGC[1:0]
4
DESCRIPTION
Keyed FM AGC. If KAGC = 0, then keyed FM AGC is off. If KAGC = 1, then keyed
FM AGC is on.
Wideband AGC. These 2 bits set the start value of wideband AGC. For AM,
see Table 18 and for FM, see Table 19.
AMSM/FMBW AM soft mute or FM bandwidth. AM mode: if AMSM/FMBW = 0, then AM soft mute
is off; if AMSM/FMBW = 1, then AM soft mute is on. FM mode: see Table 20.
3
LODX
Local or distance. If LODX = 0, then distance mode is on. If LODX = 1, then local
mode is on.
2
FLAG
Software programmable flag. If FLAG = 0, then flag output pin SWFLAG is HIGH.
If FLAG = 1, then flag output pin SWFLAG is LOW.
1 and 0
BW[1:0]
FM IF2 bandwidth setting. See Table 20.
Table 18 Setting of wideband AGC for AM (m = 0.3)
AGC1
AGC0
AM MIXER 1 INPUT VOLTAGE (PEAK VALUE)
(mV)
0
0
150
0
1
275
1
0
400
1
1
525
AGC1
AGC0
FM RF MIXER INPUT VOLTAGE (RMS VALUE)
(mV)
1
1
3
1
0
6
0
1
9
0
0
12
Table 19 Setting of wideband AGC for FM
Table 20 FM IF2 bandwidth setting
FMBW
BW1
BW0
0
0
0
dynamic mode
0
0
1
130 kHz fixed
0
1
0
90 kHz fixed
0
1
1
60 kHz fixed
1
0
0
25 kHz frequency offset alignment mode; bandwidth flag output
switched to frequency offset detector alignment voltage
2004 Nov 12
FM IF2 BANDWIDTH B−3 dB
35
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
12.2.7
TEA6848H
WRITE MODE: DATA BYTE 5
Table 21 Format of data byte 5
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
LST4
LST3
LST2
LST1
LST0
LSL2
LSL1
LSL0
Table 22 Description of data byte 5 bits
BIT
SYMBOL
DESCRIPTION
7 to 3
LST[4:0]
Setting of level DAA starting point. These 5 bits determine the offset of the level
detector output voltage.
2 to 0
LSL[2:0]
Setting of level DAA slope. These 3 bits determine the steepness of the level detector
output voltage.
Table 23 Standard setting of data byte 5 bits
SETTING OF LEVEL DAA STARTING POINT
SETTING OF LEVEL DAA SLOPE
LST4
LST3
LST2
LST1
LST0
LSL2
LSL1
LSL0
1
0
0
0
0
1
0
0
WRITE MODE: DATA BYTE 6
12.2.8
Table 24 Format of data byte 6
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
TE
CF6
CF5
CF4
CF3
CF2
CF1
CF0
Table 25 Description of data byte 6 bits
BIT
SYMBOL
7
TE
6 to 0
CF[6:0]
12.2.9
DESCRIPTION
Threshold extension. If TE = 0, then threshold extension is off. If TE = 1, then
threshold extension is on.
Setting of FM IF2 centre frequency DAA. The content of CF6 to CF0 determines the
centre frequency of the 450 kHz filter.
WRITE MODE: DATA BYTE 7
Table 26 Format of data byte 7
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
FOF3
FOF2
FOF1
FOF0
FGN3
FGN2
FGN1
FGN0
Table 27 Description of data byte 7 bits
BIT
SYMBOL
7 to 4
FOF[3:0]
Frequency offset gain alignment.
3 to 0
FGN[3:0]
IF2 filter gain alignment.
2004 Nov 12
DESCRIPTION
36
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
12.2.10 READ MODE: DATA BYTE 0
Table 28 Format of 1st data byte
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
IFC7
IFC6
IFC5
IFC4
IFC3
IFC2
IFC1
IFC0
Table 29 Description of data byte 0 bits
BIT
SYMBOL
7 to 0
IFC[7:0]
DESCRIPTION
IF counter result. These bits contain the least significant eight bits of the IF counter
result.
13 TEST AND APPLICATION INFORMATION
Table 30 List of components for test and application circuits (Figs 8, 9, 10 and 11)
SYMBOL
PARAMETER
TYPE
MANUFACTURER
−
C1
capacitor for VCO tuning
270 pF; type NP0
L1
10.7 MHz IF coil
P7 PSG P826RC 5134N=S TOKO
L2
450 kHz IF coil
P7PSGAE-5078D=S
TOKO
L3
oscillator coil
E543SNAS-02010
TOKO
L4
FM image rejection
611SNS-1066Y
TOKO
L5
FM input transformer
369INS-3076X
TOKO
L6
FM antenna coil
LQN1HR50; 215 nH
MURATA
L7
PIN diode bias
LQN1HR21; 500 nH
MURATA
L8
connection image reject
wire 10 mm/printed coil
−
L9
AM input
388BN-1211Z
TOKO
R4
resistor for stabilizer
3.3 kΩ; RC12G
BC Components
−
crystal 20.5 MHz
LN-G102-587
NDK
2004 Nov 12
37
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
handbook, full pagewidth
antenna
TEA6848H
A
C1
4.7 kΩ
Vtune
VDDD
10 kΩ
2.2 kΩ
3.9
nF
2.2 MΩ
22 Ω
f ref
PLL
3.3
nF
22
Ω
1.2 kΩ
DGND
22
nF
100 nF
+ 47
µF
1
nF
L3
BB156
2.7
pF
1.8
pF
100 nF
40
BB814
L4
41
42 43
44
47
48
50
49
51
VCO
TUNING SYSTEM
2
39 ANTENNA I C-bus
DAA
L8
45 46
BAS16
22 kΩ
1
nF
+
2.2
kΩ
22
Ω
1
nF
BA595
18 pF
L6
6.8
µH
6.8 pF
1 µF
35
32
31
L5
12
pF
30
AM
TEA6848H
B
LEVEL
I2C-bus
D
×
FM
I/Q MIXER 1
29
÷1/ ÷2/
÷3
E
90°
F
×
BAQ806
22 Ω
100 kΩ
÷2
I
+
26
220 nF
25
24
I2C-bus
AM
AGC
PEAK/
AVERAGE
LEVEL
150
pF
220
nF
÷10/
÷20
56
µH
BC847C
220
nF
2.2 nF
470
µH
100 nF
H
27
22 µF
820
µH
×
BLANK
PULSE
I2C-bus
AM
MIXER 2
×
23
270
pF
J
K
AM
22
MIXER 1
21
L
19
20
18
17
16
15
14
13 12 11
22 nF
1 nF
G
FM
MIXER 2
28
1.8 MΩ
560
Ω
AM-NOISE
DETECTOR
90°
22 nF
100 nF
C
WB/JAPAN/OIRT
RFGND
270 Ω
5V
10 nF
FM
AGC
34
33
500 nH
1
pF
215
nH
36
WB FLAG
4:6
L7
I2C-bus
37
+
1
nF
330
Ω
+
10
µF
38
1 µF
BF862
22
nF
22 nF
22
nF
10 9
220
nF
87
6
5
100
nF
10 nF
L9
BAV99
2.2
MΩ
10
kΩ
SW CONTROL
FLAG
22
Ω
SFE 10.7
MS3
L1
22
Ω
22 nF
M
22
Ω
SFE 10.7
MS3
N
MHC443
For list of components see Table 30.
Fig.8 Application diagram (continued in Fig.9).
2004 Nov 12
38
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
handbook, full pagewidth
TEA6848H
A
8.5 V
3.3 µH
RDS/
MPX
52
53
47 +
µF
6.8
nF
220 nF
54
55
5V
3.3 µH
12 kΩ
AM
AUDIO/IF
AF
HOLD
AF
SAMPLE
FM
MPX
1
nF
100
nF
200
nF
VDDA5
57
56
RDS
UPDATE
WB
58
59
POWER
SUPPLY
AMPLIFIER
x1/ x15
VDDA6
60
61
62
RDS
MUTE
MUX
B
I2C-BUS
47
µF
IFBWFLAG
63
AM STEREO
+
100
nF
SDA
64
SCL
IF
COUNT
AM
DEMOD
C
FM
D
AM
65
E
BUFFER
MPXOUT
66
VIFBW
IF2GND
F
67
390 Ω 8.2 nF
270 pF
G
FM
DEMOD
IF
FILTER
H
BANDWIDTH
CONTROL
LEVEL
68
69
70
20.5 MHz
I
CRYSTAL
OSCILLATOR
33 nF
8.2 nF
Vlevel(AMFM)
71
20.5
MHz
72
73
33 nF
74
I2C-bus
LEVEL
DAA
STABI
10 kΩ
75
I2C-bus
22 nF
VDDA5
5V
820 Ω
J
K
L
3
4
R4
3.3 kΩ
22
nF
2
47
nF
76
77
78
79
80
1
47 nF
120 kΩ
220 nF
+
TEA6848H
10 µF
47 nF
L2
M
SFR450H
22 nF
22 Ω
8.5 V
N
MHC444
Fig.9 Application diagram (continued from Fig.8).
2004 Nov 12
39
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
handbook, full pagewidth
fref
FM RF WB
input FLAG
PLL
antenna
input
5V
analog
TEA6848H
A
100 nF
68 kΩ
4.7 kΩ
10 kΩ
4.7
kΩ
100
nF
47 Ω
1.2 kΩ
100 nF
C1
2.7
pF
100 nF
41
42 43
+ 47
µF
0Ω
DGND
22
nF
relay 2
40
1
nF
L3
22 Ω
relay 1
L4
B
22 Ω
BB156
3.3
nF
2.2 kΩ
3.9 nF
relay 3
270 pF
relay 1
Vtune
2.2 MΩ
100 kΩ
44
45 46
47
48
1.8
pF
50
49
51
BB814
22 kΩ
VCO
TUNING SYSTEM
2
39 ANTENNA I C-bus
DAA
BAS16
L8
38
10 +
µF
22
Ω
1
nF
6.8 pF
L7
1 µF
35
34
WB FLAG 33
32
31
L5
12
pF
1 pF
4:6
30
E
FM
I/Q MIXER 1
÷1/ ÷2/
÷3
F
90°
G
×
H
FM
MIXER 2
I
÷2
J
+
560 820
µH
Ω
AM-NOISE
DETECTOR
90°
26
AM
AGC
25
24
I2C-bus
PEAK/
AVERAGE
LEVEL
150 pF
100
nF
÷10/
÷20
56 µH
2.2 nF
×
BLANK
PULSE
I2C-bus
AM
MIXER 2
BC847C
220
nF
470
µH
23
270
pF
K
×
L
AM
22 MIXER 1
21
47 Ω
1.8 MΩ
20
M
19
17
Q
13 12 11 10 9
22
22
nF
nF
14
15
16
I
22
nF
BF862
87
6
5
100
nF
220 nF
1 nF
N
L1
22 Ω
10 nF
2.2 MΩ
L9
18
22
nF
BAV99
10 nF
D
28
27
22 µF
SW
CONTROL
FLAG
C
×
29
22 Ω
220
nF
TEA6848H
I2C-bus WB/JAPAN/OIRT
LEVEL
22 nF
100 nF
BAQ806
220 nF
10
kΩ
AM
RFGND
270 Ω
6.8 µH
FM
AGC
36
500 nH
215
nH
I2C-bus
37
+
BA595
1 nF
18 pF
L6
2.2
kΩ
330
Ω
+
1
nF
1 µF
22 Ω
22
Ω
22
nF
IF1GND
SFE10.7
MS3
SFE 10.7
MS3
10 kΩ
100 nF
O
68 kΩ
68 kΩ
100 nF
304 Ω
304 Ω
22 Ω
330
Ω
VCC1 8.5 V
AM RF
input
Q
filter
output
I
test
mode
52
Ω
IF
output
2Ω
IF
input
For list of components see Table 30.
Fig.10 Test circuit (continued in Fig.11).
2004 Nov 12
100 nF
100 nF
100 nF
40
330
Ω
FMIF1
output
52
Ω
2Ω
FMIF2
input
I-centre
frequency
test mode
MHC445
input
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
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AF
AF
HOLD
SAMPLE
AM
AUDIO/IF
RDS/
MPX
FM
MPX
TEA6848H
47 µF
+
A
100
nF
100
nF
100
nF
47 +
µF
3.3 µH
100 nF
3.3 µH
100 nF
3.3 µH
B
68 kΩ
(1.5 kΩ)
68 kΩ
(1.5 kΩ)
47 +
µF
10 kΩ
10 kΩ
+
220
nF
47
µF
6.8
nF
100
nF
330
pF
100 nF
10 kΩ
200
nF
SDA
SCL
52
53
54
55
57
56
RDS
UPDATE
WB
58
AMPLIFIER
x1/ x15
59
60
POWER
SUPPLY
61
56 kΩ
+
100
nF
47 µF
62
IFBWFLAG
63 SDA
AM STEREO
RDS
MUTE
MUX
C
I2C-BUS
64 SCL
IF
COUNT
AM
DEMOD
DGND
D
FM
E
I2C-bus interface
AM
65
F
BUFFER
MPXOUT
66
IF2GND
G
67
390 Ω 8.2 nF
270 pF
H
FM
DEMOD
IF
FILTER
I
BANDWIDTH
CONTROL
68
22 nF
LEVEL
69
70
8.2 nF
CRYSTAL
OSCILLATOR
72
71
20.5 MHz
J
74
LEVEL
DAA
STABI
22 nF
I2C-bus
TEA6848H
K
76
77
78
L
M
3
4
R4
3.3 kΩ
22
nF
2
10 kΩ
820 Ω
R76 120 kΩ
220 nF
79
80
1
47
nF
8.2 nF
75
+
I2C-bus
20.5
MHz
73
10 µF
47 nF
47 nF
L2
N
22 Ω
SFR450H
22 nF
coaxial connector (SMC)
test pin and STOCKO connector
100 nF
jumper
100 nF
MHC446
O
2 kΩ
47 Ω
AM IF2
input
2 kΩ
AM IF
output
Fig.11 Test circuit (continued from Fig.10).
2004 Nov 12
41
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
Table 31 DC operating points
UNLOADED DC VOLTAGE (V)
SYMBOL
PIN
AM MODE
MIN.
FM MODE
TYP.
MAX.
MIN.
TYP.
MAX.
FMLIMDCFDB1
1
floating
3.7
4.2
4.8
FMLIMDCFDB2
2
floating
3.7
4.2
4.8
AMIF2DEC
3
2.4
IREFFMIF2
4
0
0.4
0.55
0.7
AMNBHOLD
5
4.3
4.6
5.1
8
8.4
−
AMIF2IN
6
2.4
2.7
3.2
IF1GND
7
external 0
FMMIX2IN
8
0
1.8
2.1
COFFSET
9
floating
FMMIX2DEC
10
0
IFCDAATEST
11
0
IFAMPOUT
12
7.2
2.7
3.2
floating
floating
external 0
0.1
−
1.5
3.5
4
4.5
0.1
−
1.5
1.8
2.1
3
3.6
0
7.9
−
2.4
VDDA1
13
external 8.5
IFAMPIN
14
2.4
2.7
3
external 8.5
1.5
2
2.5
IFAMPDEC
15
2.4
2.7
3
1.5
2
2.5
IF2FILQ
16
0
0
IF2FILI
17
0
0
MIX1OUT1
18
external 8.5
external 8.5
MIX1OUT2
19
external 8.5
external 8.5
VDDA2
20
external 8.5
external 8.5
SWFLAG
21
open-collector
AMMIX1DEC
22
2.3
2.75
3.1
floating
AMMIX1IN
23
2.3
2.75
3.1
floating
VAMCASFB
24
3.7
4.3
4.9
0
0.1
0.2
VAMCAS
25
4.5
5
5.5
0
0.1
1
TAFAMAGC
26
0
2.8
4.6
0 (no WB)
0.3 (no WB)
0.5 (no WB)
THFAMAGC
27
2.5
2.8
3.1
floating
IAMAGC
28
8.5 (external biasing)
1
2
3
Vref(MIX)
29
2.7
3.1
3.4
6.5
7.1
7.9
FMMIXIN1
30
1
1.3
1.6
2.3
2.8
3.3
RFGND
31
external 0
2.3
2.8
3.3
4 (WB)
4.5 (WB)
5 (WB)
− (FM)
<0.5 (FM)
− (FM)
0.1 (external
biasing)
−
4 (external
biasing)
external 0
i.c.
32
−
FMMIXIN2
33
1
WBFLAG
34
0
IFMAGC
35
5 (external application)
2004 Nov 12
−
1.3
1.6
42
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
UNLOADED DC VOLTAGE (V)
SYMBOL
PIN
AM MODE
MIN.
FM MODE
TYP.
MAX.
TFMAGC
36
7.5
8
8.3
TKEYEDAGC
37
floating
DAAOUT
38
−
0.2
0.3
DAATD
39
floating
DAAIN
40
0
i.c.
41
−
Vtune
42
0
−
8.5
CPOUT
43
0
−
8.5
3.4
3.7
−
8.5
MIN.
TYP.
MAX.
3.9
4.6
5.3
1
−
7
0.2
−
8.25
0.2
−
1.5
0
−
8.5
0
−
8.5
0
−
8.5
3.4
3.7
2.2
2.8
3.4
5
6.1
7.2
−
VDDA3
44
external 8.5
FREF
45
3.2
external 8.5
VDDD
46
external 5
external 5
DGND
47
external 0
external 0
VCOGND
48
external 0
external 0
OSCFDB
49
2.2
2.8
3.4
6.1
7.2
3.2
OSCTNK
50
5
VDDA4
51
external 8.5
external 8.5
MPXDCFDB
52
−
2
2.4
2.8
AFSAMPLE
53
0
0
0.2
0.5
AFHOLD
54
open-collector 5
TRDSMUTE
55
1.7
2.2
2.7
1.2 (muted)
1.7 (muted)
AMAFIF2
56
4
4.3
4.6
RDSMPX
57
0
FMMPX
58
0
0.2
0.5
open-collector
0.7 (muted)
5.2 (not muted) 5.7 (not muted) 6.2 (not muted)
0.5
floating 3.3
1
3.2
4
4.8
3.2
4
4.8
2.5
3
VDDA5
59
external 5
external 5
MODDET
60
0
2
VDDA6
61
external 8.5
external 8.5
IFBWFLAG
62
open-collector 8.5
3 (IFBW = 1)
3.3 (IFBW = 1)
4.1 (IFBW = 1)
SDA
63
4.8
5
5.2
4.8
5
5.2
SCL
64
4.8
5
5.2
4.8
5
5.2
VIFBW
65
0
0.1
−
0.5
−
4
IF2GND
66
external 0
external 0
CINT
67
0
3.2
4
4.8
MODETOUT
68
0
2
3
4
TACD
69
0
3.2
3.6
4
Vlevel(AMFM)
70
0
−
7
0
−
7
XTAL1
71
1.7
2.1
2.5
1.7
2.1
2.5
XTALGND
72
external 0
2004 Nov 12
external 0
43
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
UNLOADED DC VOLTAGE (V)
SYMBOL
PIN
AM MODE
MIN.
FM MODE
TYP.
MAX.
MIN.
TYP.
MAX.
XTAL2
73
1.7
2.1
2.5
1.7
2.1
2.5
Vlevel(ACD)
74
0.5
1
2
0.3
0.5
0.8
ACDTHRES
75
0.37
−
0.4
0.37
−
0.4
IREF
76
4
4.25
4.5
4
4.25
4.5
AMMIX2OUT1
77
external 8.5
external 8.5
AMMIX2OUT2
78
external 8.5
external 8.5
CAGC
79
3.6
4.3
4.8
1.7
2.5
3.3
Vref(lim)
80
0.5
0.8
1.2
3.6
4.2
4.8
14 INTERNAL CIRCUITRY
Table 32 Equivalent pin circuits
PIN
SYMBOL
1
FMLIMDCFDB1
2
FMLIMDCFDB2
EQUIVALENT CIRCUIT
1, 2
MDB088
3
AMIF2DEC
6
AMIF2IN
500 Ω
3
2 kΩ
6
MHC375
2004 Nov 12
44
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
PIN
4
SYMBOL
TEA6848H
EQUIVALENT CIRCUIT
IREFFMIF2
4
MDB089
5
AMNBHOLD
80 kΩ
5
MHC377
7
IF1GND
8
FMMIX2IN
10
FMMIX2DEC
4 kΩ
4 kΩ
10
350 Ω
8
MDB090
9
COFFSET
1 MΩ
9
MHC379
11
IFCDAATEST
MHC453
11
2004 Nov 12
45
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
PIN
12
SYMBOL
TEA6848H
EQUIVALENT CIRCUIT
IFAMPOUT
330 Ω
12
MHC381
13
VDDA1
14
IFAMPIN
15
IFAMPDEC
5
kΩ
5
kΩ
330 Ω
14
16
15
MDB091
IF2FILQ
16
MHC455
17
IF2FILI
17
2004 Nov 12
46
MHC454
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
PIN
SYMBOL
18
MIX1OUT1
19
MIX1OUT2
TEA6848H
EQUIVALENT CIRCUIT
18
19
MHC383
20
VDDA2
21
SWFLAG
21
MHC384
22
AMMIX1DEC
23
AMMIX1IN
400 Ω
23
22
MHC385
24
VAMCASFB
10 kΩ
24
MHC447
25
VAMCAS
1 kΩ
25
MHC448
2004 Nov 12
47
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
PIN
26
SYMBOL
TEA6848H
EQUIVALENT CIRCUIT
TAFAMAGC
26
MDB100
27
THFAMAGC
27
MDB101
28
IAMAGC
28
MHC388
29
Vref(MIX)
29
MHC389
30
FMMIXIN1
33
FMMIXIN2
10
kΩ
10
kΩ
30
31
2004 Nov 12
RFGND
48
33
MHC390
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
PIN
SYMBOL
32
i.c.
34
WBFLAG
TEA6848H
EQUIVALENT CIRCUIT
200 Ω
34
50 kΩ
MHC391
35
IFMAGC
35
MHC392
36
TFMAGC
10 kΩ
10 kΩ
36
MHC393
37
TKEYEDAGC
5 kΩ
37
MHC394
38
DAAOUT
36
kΩ
38
MHC395
2004 Nov 12
49
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
PIN
39
SYMBOL
EQUIVALENT CIRCUIT
DAATD
DAAIN
43
MHC396
39
39
40
TEA6848H
2.5 kΩ
40
MHC397
41
i.c.
42
Vtune
42
MHC398
CPOUT
40
39
43
43
MHC399
44
2004 Nov 12
VDDA3
50
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
PIN
45
SYMBOL
TEA6848H
EQUIVALENT CIRCUIT
FREF
1 kΩ
45
MHC400
46
VDDD
47
DGND
48
VCOGND
49
OSCFDB
50
OSCTNK
3 kΩ
50
49
MHC401
51
VDDA4
52
MPXDCFDB
52
MHC449
53
AFSAMPLE
53
MHC402
2004 Nov 12
51
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
PIN
54
SYMBOL
EQUIVALENT CIRCUIT
AFHOLD
54
MHC403
55
TRDSMUTE
55
MHC404
56
AMAFIF2
0.35 pF
201 kΩ
56
MHC405
57
RDSMPX
300 Ω
57
MDB102
2004 Nov 12
52
TEA6848H
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
PIN
58
SYMBOL
TEA6848H
EQUIVALENT CIRCUIT
FMMPX
280 Ω
58
MDB103
59
VDDA5
60
MODDET
60
MDB104
61
VDDA6
62
IFBWFLAG
62
1 kΩ
62
50 µA
AM
FM (FMBW = 1)
MDB095
63
SDA
63
1 kΩ
MHC410
2004 Nov 12
53
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
PIN
64
SYMBOL
TEA6848H
EQUIVALENT CIRCUIT
SCL
1 kΩ
64
MHC411
65
VIFBW
65
MDB096
66
IF2GND
67
CINT
67
MDB097
68
MODETOUT
68
MHC450
69
TACD
2 kΩ
69
MHC451
2004 Nov 12
54
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
PIN
70
SYMBOL
TEA6848H
EQUIVALENT CIRCUIT
Vlevel(AMFM)
150 Ω
70
MHC414
71
XTAL1
72
XTALGND
73
XTAL2
27.6 pF
27.6 pF
20 kΩ
20 kΩ
71
73
10 kΩ
10 kΩ
72
MHC415
74
Vlevel(ACD)
8 kΩ
74
MDB212
75
ACDTHRES
75
MDB099
2004 Nov 12
55
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
PIN
76
SYMBOL
TEA6848H
EQUIVALENT CIRCUIT
IREF
10 kΩ
76
77
AMMIX2OUT1
78
AMMIX2OUT2
MHC418
77
78
MHC419
2004 Nov 12
56
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
PIN
79
SYMBOL
TEA6848H
EQUIVALENT CIRCUIT
CAGC
79
AM
10 kΩ
420 Ω
79
FM
80
MDB092
Vref(lim)
80
MHC452
2004 Nov 12
57
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
15 PACKAGE OUTLINE
LQFP80: plastic low profile quad flat package; 80 leads; body 12 x 12 x 1.4 mm
SOT315-1
c
y
X
A
60
41
40 Z E
61
e
E HE
A A2
(A 3)
A1
w M
θ
bp
Lp
L
pin 1 index
80
21
1
detail X
20
ZD
e
v M A
w M
bp
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
1.6
0.16
0.04
1.5
1.3
0.25
0.27
0.13
0.18
0.12
12.1
11.9
12.1
11.9
0.5
HD
HE
14.15 14.15
13.85 13.85
L
Lp
v
w
y
1
0.75
0.30
0.2
0.15
0.1
Z D (1) Z E (1)
θ
1.45
1.05
7
o
0
1.45
1.05
o
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
REFERENCES
OUTLINE
VERSION
IEC
JEDEC
SOT315-1
136E15
MS-026
2004 Nov 12
JEITA
EUROPEAN
PROJECTION
ISSUE DATE
00-01-19
03-02-25
58
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
To overcome these problems the double-wave soldering
method was specifically developed.
16 SOLDERING
16.1
Introduction to soldering surface mount
packages
If wave soldering is used the following conditions must be
observed for optimal results:
This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our “Data Handbook IC26; Integrated Circuit Packages”
(document order number 9398 652 90011).
• Use a double-wave soldering method comprising a
turbulent wave with high upward pressure followed by a
smooth laminar wave.
• For packages with leads on two sides and a pitch (e):
There is no soldering method that is ideal for all surface
mount IC packages. Wave soldering can still be used for
certain surface mount ICs, but it is not suitable for fine pitch
SMDs. In these situations reflow soldering is
recommended.
16.2
TEA6848H
– larger than or equal to 1.27 mm, the footprint
longitudinal axis is preferred to be parallel to the
transport direction of the printed-circuit board;
– smaller than 1.27 mm, the footprint longitudinal axis
must be parallel to the transport direction of the
printed-circuit board.
Reflow soldering
The footprint must incorporate solder thieves at the
downstream end.
Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.
Driven by legislation and environmental forces the
worldwide use of lead-free solder pastes is increasing.
• For packages with leads on four sides, the footprint must
be placed at a 45° angle to the transport direction of the
printed-circuit board. The footprint must incorporate
solder thieves downstream and at the side corners.
Several methods exist for reflowing; for example,
convection or convection/infrared heating in a conveyor
type oven. Throughput times (preheating, soldering and
cooling) vary between 100 seconds and 200 seconds
depending on heating method.
During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.
Typical reflow peak temperatures range from
215 °C to 270 °C depending on solder paste material. The
top-surface temperature of the packages should
preferably be kept:
Typical dwell time of the leads in the wave ranges from
3 seconds to 4 seconds at 250 °C or 265 °C, depending
on solder material applied, SnPb or Pb-free respectively.
• below 225 °C (SnPb process) or below 245 °C (Pb-free
process)
A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.
– for all BGA, HTSSON..T and SSOP..T packages
16.4
– for packages with a thickness ≥ 2.5 mm
Fix the component by first soldering two
diagonally-opposite end leads. Use a low voltage (24 V or
less) soldering iron applied to the flat part of the lead.
Contact time must be limited to 10 seconds at up to
300 °C.
– for packages with a thickness < 2.5 mm and a
volume ≥ 350 mm3 so called thick/large packages.
• below 240 °C (SnPb process) or below 260 °C (Pb-free
process) for packages with a thickness < 2.5 mm and a
volume < 350 mm3 so called small/thin packages.
When using a dedicated tool, all other leads can be
soldered in one operation within 2 seconds to 5 seconds
between 270 °C and 320 °C.
Moisture sensitivity precautions, as indicated on packing,
must be respected at all times.
16.3
Wave soldering
Conventional single wave soldering is not recommended
for surface mount devices (SMDs) or printed-circuit boards
with a high component density, as solder bridging and
non-wetting can present major problems.
2004 Nov 12
Manual soldering
59
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
16.5
TEA6848H
Suitability of surface mount IC packages for wave and reflow soldering methods
SOLDERING METHOD
PACKAGE(1)
WAVE
REFLOW(2)
BGA, HTSSON..T(3), LBGA, LFBGA, SQFP, SSOP..T(3), TFBGA,
VFBGA, XSON
not suitable
suitable
DHVQFN, HBCC, HBGA, HLQFP, HSO, HSOP, HSQFP, HSSON,
HTQFP, HTSSOP, HVQFN, HVSON, SMS
not suitable(4)
suitable
PLCC(5), SO, SOJ
suitable
suitable
not
recommended(5)(6)
suitable
SSOP, TSSOP, VSO, VSSOP
not
recommended(7)
suitable
CWQCCN..L(8), PMFP(9), WQCCN..L(8)
not suitable
LQFP, QFP, TQFP
not suitable
Notes
1. For more detailed information on the BGA packages refer to the “(LF)BGA Application Note” (AN01026); order a copy
from your Philips Semiconductors sales office.
2. All surface mount (SMD) packages are moisture sensitive. Depending upon the moisture content, the maximum
temperature (with respect to time) and body size of the package, there is a risk that internal or external package
cracks may occur due to vaporization of the moisture in them (the so called popcorn effect). For details, refer to the
Drypack information in the “Data Handbook IC26; Integrated Circuit Packages; Section: Packing Methods”.
3. These transparent plastic packages are extremely sensitive to reflow soldering conditions and must on no account
be processed through more than one soldering cycle or subjected to infrared reflow soldering with peak temperature
exceeding 217 °C ± 10 °C measured in the atmosphere of the reflow oven. The package body peak temperature
must be kept as low as possible.
4. These packages are not suitable for wave soldering. On versions with the heatsink on the bottom side, the solder
cannot penetrate between the printed-circuit board and the heatsink. On versions with the heatsink on the top side,
the solder might be deposited on the heatsink surface.
5. If wave soldering is considered, then the package must be placed at a 45° angle to the solder wave direction.
The package footprint must incorporate solder thieves downstream and at the side corners.
6. Wave soldering is suitable for LQFP, QFP and TQFP packages with a pitch (e) larger than 0.8 mm; it is definitely not
suitable for packages with a pitch (e) equal to or smaller than 0.65 mm.
7. Wave soldering is suitable for SSOP, TSSOP, VSO and VSSOP packages with a pitch (e) equal to or larger than
0.65 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm.
8. Image sensor packages in principle should not be soldered. They are mounted in sockets or delivered pre-mounted
on flex foil. However, the image sensor package can be mounted by the client on a flex foil by using a hot bar
soldering process. The appropriate soldering profile can be provided on request.
9. Hot bar soldering or manual soldering is suitable for PMFP packages.
2004 Nov 12
60
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
17 DATA SHEET STATUS
LEVEL
DATA SHEET
STATUS(1)
PRODUCT
STATUS(2)(3)
Development
DEFINITION
I
Objective data
II
Preliminary data Qualification
This data sheet contains data from the preliminary specification.
Supplementary data will be published at a later date. Philips
Semiconductors reserves the right to change the specification without
notice, in order to improve the design and supply the best possible
product.
III
Product data
This data sheet contains data from the product specification. Philips
Semiconductors reserves the right to make changes at any time in order
to improve the design, manufacturing and supply. Relevant changes will
be communicated via a Customer Product/Process Change Notification
(CPCN).
Production
This data sheet contains data from the objective specification for product
development. Philips Semiconductors reserves the right to change the
specification in any manner without notice.
Notes
1. Please consult the most recently issued data sheet before initiating or completing a design.
2. The product status of the device(s) described in this data sheet may have changed since this data sheet was
published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com.
3. For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
18 DEFINITIONS
19 DISCLAIMERS
Short-form specification  The data in a short-form
specification is extracted from a full data sheet with the
same type number and title. For detailed information see
the relevant data sheet or data handbook.
Life support applications  These products are not
designed for use in life support appliances, devices, or
systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips
Semiconductors customers using or selling these products
for use in such applications do so at their own risk and
agree to fully indemnify Philips Semiconductors for any
damages resulting from such application.
Limiting values definition  Limiting values given are in
accordance with the Absolute Maximum Rating System
(IEC 60134). Stress above one or more of the limiting
values may cause permanent damage to the device.
These are stress ratings only and operation of the device
at these or at any other conditions above those given in the
Characteristics sections of the specification is not implied.
Exposure to limiting values for extended periods may
affect device reliability.
Right to make changes  Philips Semiconductors
reserves the right to make changes in the products including circuits, standard cells, and/or software described or contained herein in order to improve design
and/or performance. When the product is in full production
(status ‘Production’), relevant changes will be
communicated via a Customer Product/Process Change
Notification (CPCN). Philips Semiconductors assumes no
responsibility or liability for the use of any of these
products, conveys no licence or title under any patent,
copyright, or mask work right to these products, and
makes no representations or warranties that these
products are free from patent, copyright, or mask work
right infringement, unless otherwise specified.
Application information  Applications that are
described herein for any of these products are for
illustrative purposes only. Philips Semiconductors make
no representation or warranty that such applications will be
suitable for the specified use without further testing or
modification.
2004 Nov 12
61
Philips Semiconductors
Product specification
New In Car Entertainment car radio tuner IC with
Precision Adjacent Channel Suppression (NICE-PACS)
TEA6848H
20 PURCHASE OF PHILIPS I2C COMPONENTS
Purchase of Philips I2C components conveys a license under the Philips’ I2C patent to use the
components in the I2C system provided the system conforms to the I2C specification defined by
Philips. This specification can be ordered using the code 9398 393 40011.
2004 Nov 12
62
Philips Semiconductors – a worldwide company
Contact information
For additional information please visit http://www.semiconductors.philips.com.
Fax: +31 40 27 24825
For sales offices addresses send e-mail to: [email protected]
SCA76
© Koninklijke Philips Electronics N.V. 2004
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.
Printed in The Netherlands
R32/03/pp63
Date of release: 2004
Nov 12
Document order number:
9397 750 14272
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