PHILIPS TDA9812T

INTEGRATED CIRCUITS
DATA SHEET
TDA9812
Multistandard VIF-PLL and
FM-PLL/AM demodulator
Preliminary specification
File under Integrated Circuits, IC02
Philips Semiconductors
1995 Mar 21
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
TDA9812
FEATURES
GENERAL DESCRIPTION
• 5 V positive supply voltage
The TDA9812/T is an integrated circuit for multistandard
vision IF signal processing and AM and FM sound
demodulation in TV and VTR sets.
• Gain controlled wide band VIF-amplifier (AC-coupled)
• True synchronous demodulation with active carrier
regeneration (very linear demodulation, good
intermodulation figures, reduced harmonics, excellent
pulse response)
• Gated phase detector for L/L accent standard
• VCO frequency switchable between L and L accent
(alignment external) picture carrier frequency
• Separate video amplifier for sound trap buffering with
high video bandwidth
• VIF AGC detector for gain control, operating as peak
sync detector for B/G (optional external AGC) and peak
white detector for L; signal controlled reaction time for L
• Tuner AGC with adjustable Take Over Point (TOP)
• AFC detector without extra reference circuit
• AC-coupled limiter amplifier for sound intercarrier signal
• Alignment-free FM-PLL demodulator with high linearity,
switchable de-emphasis for FM
• AM-SIF AGC detector for gain controlled SIF amplifier
• AM demodulator without extra reference circuit
• Stabilizer circuit for ripple rejection and to achieve
constant output signals.
ORDERING INFORMATION
TYPE
NUMBER
TDA9812
TDA9812T
1995 Mar 21
PACKAGE
NAME
SDIP32
SO28
DESCRIPTION
VERSION
plastic shrink dual in-line package; 32 leads (400 mil)
SOT232-1
plastic small outline package; 28 leads body width 7.5 mm
SOT136-1
2
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
TDA9812
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
VP
supply voltage
4.5
5
5.5
V
IP
supply current
82
96
110
mA
Vi VIF(rms)
vision IF input signal voltage
sensitivity (RMS value)
−
60
100
µV
Vo CVBS(p-p)
CVBS output signal voltage
(peak-to-peak value)
1.7
2.0
2.3
V
B−3
−3 dB video bandwidth on pin CVBS
7
8
−
MHz
S/N(W)
weighted signal-to-noise ratio for
video
56
60
−
dB
−1 dB video at output
B/G and L standard;
CL < 20 pF; RL > 1 kΩ;
AC load
IMα1.1
intermodulation attenuation at ‘blue’
f = 1.1 MHz
58
64
−
dB
IMα3.3
intermodulation attenuation at ‘blue’
f = 3.3 MHz
58
64
−
dB
αH(sup)
suppression of harmonics in video
signal
35
40
−
dB
Vi SIF(rms)
sound IF input signal voltage
sensitivity (RMS value)
−3 dB video at AF output
−
70
100
µV
Vo(rms)
audio output signal voltage for FM
(RMS value)
B/G standard;
54% modulation
−
0.5
−
V
audio output signal voltage for AM
(RMS value)
L standard; 54% modulation −
0.5
−
V
total harmonic distortion
54% modulation
THD
S/N (W)
1995 Mar 21
FM
−
0.15
0.5
%
AM
−
0.5
1.0
%
FM
−
60
−
dB
AM
47
53
−
dB
weighted signal-to-noise ratio
54% modulation
3
1995 Mar 21
4
V i SIF1
V i SIF2
V i VIF1
Vi VIF2
SIF
VIF
5V
VP
(26)
29
GND
(24)
27
C ref
3
(3)
6
(4)
(7)
9
7
(5)
25
(22)
24
(21)
L/L
switch
5.5
V iFM
DEEM I DEEM O
n.c.
MBE452
12 (10)
15 (13)
22 (19)
10 (8)
21 (18)
de-emphasis
(15) (14) (12) (11)
17 16 14 13
FM DETECTOR (PLL)
AF AMPLIFIER
VIDEO
BUFFER
30
n.c.
VIDEO DEMODULATOR
AND AMPLIFIER
SIF
Vo(int)
(9) (17)
11 20
23
(20)
AFC
AFC DETECTOR
18
n.c.
TDA9812
VCO1
VCO TWD
VCO2
2 x f PC
AF/AM
V o AF
Vi (vid)
CVBS
2 V (p-p)
video
1 V (p-p)
Vo (vid)
Multistandard VIF-PLL and
FM-PLL/AM demodulator
Fig.1 Block diagram (TDA9812T pinning in parenthesis).
CSAGC
(6)
8
SIF-AGC
SIF
AMPLIFIER
loop
filter
INTERCARRIER
MIXER AND
AM DEMODULATOR
FPLL
19
(16)
TAGC
tuner
AGC
TUNER AND VIF-AGC
28
(25)
standard
switch
STD
1/2 VP
(23)
26
INTERNAL VOLTAGE
STABILIZER
31 (27)
VIF AMPLIFIER
5
4
32 (28)
1 (1)
2 (2)
n.c.
TOP
C BL
T PLL
handbook, full pagewidth
n.c.
CAGC
TADJ
Philips Semiconductors
Preliminary specification
TDA9812
BLOCK DIAGRAM
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
TDA9812
PINNING
SYMBOL
PIN SDIP32
PIN SO28
DESCRIPTION
Vi VIF1
1
1
VIF differential input signal voltage 1
Vi VIF2
2
2
VIF differential input signal voltage 2
CBL
3
3
black level detector
n.c.
4
−
not connected
n.c.
5
−
not connected
TADJ
6
4
tuner AGC take-over adjust (TOP)
TPLL
7
5
PLL loop filter
CSAGC
8
6
SIF AGC capacitor
STD
9
7
standard switch
Vo CVBS
10
8
CVBS output signal voltage
LSWI
11
9
L/L accent switch
Vo AF
12
10
audio voltage frequency output
DEEMI
13
11
de-emphasis input
DEEMO
14
12
de-emphasis output
CDEC
15
13
decoupling capacitor
n.c.
16
14
not connected
Vi FM
17
15
sound intercarrier input voltage
n.c.
18
−
not connected
TAGC
19
16
tuner AGC output
Vo(int)
20
17
sound intercarrier output voltage
Vo(vid)
21
18
composite video output voltage
Vi(vid)
22
19
video buffer input voltage
AFC
23
20
AFC output
VCO1
24
21
VCO1 reference circuit for 2fPC
VCO2
25
22
VCO2 reference circuit for 2fPC
Cref
26
23
1⁄ V
2 P
GND
27
24
ground
CVAGC
28
25
VIF AGC capacitor
VP
29
26
supply voltage
n.c.
30
−
not connected
Vi SIF1
31
27
SIF differential input signal voltage 1
Vi SIF2
32
28
SIF differential input signal voltage 2
1995 Mar 21
5
reference capacitor
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
handbook, halfpage
Vi VIF1
1
32 V i SIF2
Vi VIF2
2
31 V i SIF1
C BL
3
n.c.
TDA9812
handbook, halfpage
Vi VIF1
1
28 V i SIF2
30 n.c.
Vi VIF2
2
27 V i SIF1
4
29 VP
C BL
3
26 VP
n.c.
5
28 C VAGC
TADJ
4
25 C VAGC
TADJ
TPLL
5
24 GND
CSAGC
6
23 Cref
STD
7
6
27 GND
TPLL
7
26 Cref
CSAGC
8
25 VCO2
TDA9812
STD
24 VCO1
9
Vo CVBS 10
23 AFC
22 VCO2
TDA9812T
Vo CVBS
8
21 VCO1
LSWI
9
20 AFC
LSWI 11
22 Vi(vid)
Vo AF 10
19 Vi(vid)
Vo AF 12
21 Vo(vid)
DEEM I 11
18 Vo(vid)
DEEM I 13
20 Vo(int)
DEEM O 12
17 Vo(int)
DEEM O 14
19 TAGC
CDEC 13
16 TAGC
n.c. 14
15 V i FM
CDEC 15
18 n.c.
17 V i FM
n.c. 16
MBE435
MBE436
Fig.2 Pin configuration (SDIP32).
1995 Mar 21
Fig.3 Pin configuration (SO28).
6
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
TDA9812
FUNCTIONAL DESCRIPTION
VCO, travelling wave divider and AFC
Vision IF amplifier
The VCO operates with a resonance circuit (with L and C
in parallel) at double the PC frequency. The VCO is
controlled by two integrated variable capacitors. The
control voltage required to tune the VCO from its freerunning frequency to actually double the PC frequency is
generated by the Frequency-Phase detector and fed via
the loop filter to the first variable capacitor (FPLL). This
control voltage is amplified and additionally converted into
a current which represents the AFC output signal. The
VCO centre frequency can be decreased (required for
L/L accent standard) by activating an additional internal
capacitor. This is achieved by using the L/L accent switch.
In this event the second variable capacitor can be
controlled by a variable resistor at the L/L accent switch for
setting the VCO centre frequency to the required
L/L accent value. At centre frequency the AFC output
current is equal to zero.
The vision IF amplifier consists of three AC-coupled
differential amplifier stages. Each differential stage
comprises a feedback network controlled by emitter
degeneration.
Tuner and VIF AGC
The AGC capacitor voltage is transferred to an internal IF
control signal, and is fed to the tuner AGC to generate the
tuner AGC output current (open-collector output). The
tuner AGC take-over point can be adjusted. This allows the
tuner and the SWIF filter to be matched to achieve the
optimum IF input level.
The AGC detector charges/discharges the AGC capacitor
to the required voltage for setting of VIF and tuner gain in
order to keep the video signal at a constant level.
Therefore for negative video modulation the sync level and
for positive video modulation the peak white level of the
video signal is detected. In order to reduce the reaction
time for positive modulation, where a very large time
constant is needed, an additional level detector increases
the discharging current of the AGC capacitor (fast mode)
in the event of a decreasing VIF amplitude step. The
additional level information is given by the black-level
detector voltage.
The oscillator signal is divided-by-two with a Travelling
Wave Divider (TWD) which generates two differential
output signals with a 90 degree phase difference
independent of the frequency.
Video demodulator and amplifier
The video demodulator is realized by a multiplier which is
designed for low distortion and large bandwidth. The vision
IF input signal is multiplied with the ‘in phase’ signal of the
travelling wave divider output. In the demodulator stage
the video signal polarity can be switched in accordance
with the TV standard.
Frequency-Phase detector (FPLL)
The VIF-amplifier output signal is fed into a frequency
detector and into a phase detector via a limiting amplifier.
During acquisition the frequency detector produces a DC
current proportional to the frequency difference between
the input and the VCO signal. After frequency lock-in the
phase detector produces a DC current proportional to the
phase difference between the VCO and the input signal.
The DC current of either frequency detector or phase
detector is converted into a DC voltage via the loop filter,
which controls the VCO frequency. In the event of positive
modulated signals the phase detector is gated by
composite sync in order to avoid signal distortion for
overmodulated VIF signals.
1995 Mar 21
The demodulator output signal is fed via an integrated
low-pass filter for attenuation of the carrier harmonics to
the video amplifier. The video amplifier is realized by an
operational amplifier with internal feedback and high
bandwidth. A low-pass filter is integrated to achieve an
attenuation of the carrier harmonics for B/G and
L standard. The standard dependent level shift in this
stage delivers the same sync level for positive and
negative modulation. The video output signal is 1 V (p-p)
for nominal vision IF modulation.
7
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
TDA9812
The FM-PLL consists of an integrated relaxation oscillator,
an integrated loop filter and a phase detector. The
oscillator is locked to the FM intercarrier signal, output
from the limiter. As a result of locking, the oscillator
frequency tracks with the modulation of the input signal
and the oscillator control voltage is superimposed by the
AF voltage. The FM-PLL operates as an FM-demodulator
Video buffer
For an easy adaption of the sound traps an operational
amplifier with internal feedback is used in the event of B/G
and L standard. This amplifier is featured with a high
bandwidth and 7 dB gain. The input impedance is adapted
for operating in combination with ceramic sound traps. The
output stage delivers a nominal 2 V (p-p) positive video
signal. Noise clipping is provided.
The AF amplifier consists of two parts:
• The AF preamplifier for FM sound is an operational
amplifier with internal feedback, high gain and high
common mode rejection. The AF voltage from the PLL
demodulator, by principle a small output signal, is
amplified by approximately 33 dB. The low-pass
characteristic of the amplifier reduces the harmonics of
the intercarrier signal at the sound output terminal, at
which the de-emphasis network for FM sound is applied.
An additional DC control circuit is implemented to keep
the DC level constant, independent of process spread.
SIF amplifier and AGC for AM sound
The sound IF amplifier consists of two AC-coupled
differential amplifier stages. Each differential stage
comprises a controlled feedback network provided by
emitter degeneration.
The SIF AGC detector is related to the SIF input signals
(average level of AM carrier) and controls the SIF amplifier
to provide a constant SIF signal to the AM demodulator.
The SIF AGC reaction time is set to ‘slow’ for nominal
video conditions. But with a decreasing VIF amplitude step
the SIF AGC is set to ‘fast’ mode controlled by the VIF
AGC detector.
• The AF output amplifier (10 dB) provides the required
output level by a rail-to-rail output stage. This amplifier
makes use of an input selector for switching to AM, FM
de-emphasis or mute state, controlled by the standard
switching voltage and the mute switching voltage.
Intercarrier mixer
Internal voltage stabilizer and 1⁄2VP-reference
The intercarrier mixer is realized by a multiplier. The VIF
amplifier output signal is fed to the intercarrier mixer and
converted to intercarrier frequency by the regenerated
picture carrier (VCO). The mixer output signal is fed via a
high-pass for attenuation of the video signal components.
The bandgap circuit internally generates a voltage of
approximately 1.25 V, independent of supply voltage and
temperature. A voltage regulator circuit, connected to this
voltage, produces a constant voltage of 3.6 V which is
used as an internal reference voltage.
AM demodulator
For all audio output signals the constant reference voltage
cannot be used because large output signals are required.
Therefore these signals refer to half the supply voltage to
achieve a symmetrical headroom, especially for the
rail-to-rail output stage. For ripple and noise attenuation
the 1⁄2VP voltage has to be filtered via a low-pass filter by
using an external capacitor together with an integrated
resistor (fg = 5 Hz). For a fast setting to 1⁄2VP an internal
start-up circuit is added.
The AM demodulator is realized by a multiplier. The
modulated SIF amplifier output signal is multiplied in
phase with the limited (AM is removed) SIF amplifier
output signal. The demodulator output signal is fed via an
integrated low-pass filter for attenuation of the carrier
harmonics to the AF amplifier.
FM detector
The FM detector consists of a limiter, an FM-PLL and an
AF amplifier. The limiter provides the amplification and
limitation of the FM sound intercarrier signal before
demodulation. The result is high sensitivity and AM
suppression. The amplifier consists of 7 stages which are
internally AC-coupled in order to minimize the DC offset
and to save pins for DC decoupling.
1995 Mar 21
8
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
TDA9812
LIMITING VALUES
SDIP32
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
VP
supply voltage (pin 29)
Vi
CONDITIONS
maximum chip temperature
of +120 °C; note 1
MIN.
MAX.
UNIT
0
5.5
V
voltage at pins 1 to 9, 11 to 19,
22, 23 and 28 to 32
0
VP
V
ts(max)
maximum short-circuit time
−
10
s
V19
tuner AGC output voltage
0
13.2
V
Tstg
storage temperature
−25
+150
°C
Tamb
operating ambient temperature
−20
+70
°C
Vesd
electrostatic handling voltage
−300
+300
V
note 2
Notes
1. IP = 110 mA; Tamb = +70 °C; Rth j-a = 60 K/W for SDIP32 and Rth j-a = 80 K/W for SO28.
2. Charge device model class B: equivalent to discharging a 200 pF capacitor via a 0 Ω series resistor.
THERMAL CHARACTERISTICS
SYMBOL
Rth j-a
1995 Mar 21
PARAMETER
VALUE
UNIT
SDIP32
60
K/W
SO28
80
K/W
thermal resistance from junction to ambient in free air
9
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
TDA9812
CHARACTERISTICS
SDIP32 pinning; VP = 5 V; Tamb = +25 °C; see Table 1 for input frequencies and level; input level Vi IF 1, 2 = 10 mV
RMS value (sync-level for B/G, peak white level for L); video modulation DSB; residual carrier B/G: 10%; L = 3%;
video signal in accordance with “CCIR, line 17” ; measurements taken in Fig.17 unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply (pin 29)
VP
supply voltage
IP
supply current
note 1
4.5
5
5.5
V
82
96
110
mA
Vision IF amplifier (pins 1 and 2)
Vi(VIF)(rms)
input signal voltage sensitivity
(RMS value)
B/G standard; −1 dB video
at output
−
60
100
µV
Vi(max)(rms)
maximum input signal voltage
(RMS value)
B/G standard; +1 dB
video at output
120
200
−
mV
∆Vo(int)
internal IF amplitude difference
between picture and sound
carrier
within AGC range;
B/G standard;
∆f = 5.5 MHz
−
0.7
1
dB
GIF
IF gain control range
see Figs 5 and 6
65
70
−
dB
Ri(diff)
differential input resistance
note 2
1.7
2.2
2.7
kΩ
Ci(diff)
differential input capacitance
note 2
1.2
1.7
2.5
pF
V1/2
DC input voltage
−
3.4
−
V
125
130
−
MHz
True synchronous video demodulator; see note 3
fVCO(max)
maximum oscillator frequency
for carrier regeneration
∆fVCO
oscillator drift (free-running) as a IAFC = 0; note 4
function of temperature
−20
−
+20
ppm/K
V0 ref(rms)
oscillator voltage swing at
pins 24 and 25 (RMS value)
B/G and L standard
70
100
130
mV
L/L accent standard
45
65
85
mV
vision carrier capture frequency
range
B/G and L standard
±1.5
±2.0
−
MHz
L/L accent standard;
fpc = 33.9 MHz;
R11 = 5.6 kΩ
±1.0
±1.3
−
MHz
∆fpc(capt)
f = 2fpc
∆fpc(ff)
vision carrier frequency
(free-running) accuracy
L/L accent standard;
fpc = 33.9 MHz;
R11 = 5.6 kΩ
−
±200
±400
kHz
∆fpc(alg)
L/L accent alignment frequency
range
IAFC = 0
±400
±600
−
kHz
tacqu
acquisition time
BL = 60 kHz; note 5
−
−
30
ms
Vi (VIF)(rms)
VIF input signal voltage
sensitivity for PLL to be locked
(RMS value; pins 1 and 2)
maximum IF gain; note 6
−
30
70
µV
IPLL(os)
FPLL offset current at pin 7
note 7
−
−
±4.5
µA
1995 Mar 21
10
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
SYMBOL
TDA9812
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Composite video amplifier (pin 21; sound carrier OFF)
Vo video(p-p)
output signal voltage
(peak-to-peak value)
see Fig.13
0.88
1.0
1.12
V
V21(sync)
sync voltage level
B/G and L standard
−
1.5
−
V
V21(clu)
upper video clipping voltage
level
VP − 1.1
VP − 1
−
V
V21(cll)
lower video clipping voltage
level
−
0.3
0.4
V
R21
output resistance
−
−
10
Ω
Iint 21
internal DC bias current for
emitter-follower
1.6
2.0
−
mA
I21(max)(sink)
maximum AC and DC output
sink current
1.0
−
−
mA
I21(max)(source) maximum AC and DC output
source current
2.0
−
−
mA
note 2
B−1
−1 dB video bandwidth
B/G and L standard;
CL < 50 pF; RL > 1 kΩ;
AC load
5
6
−
MHz
B−3
−3 dB video bandwidth
B/G and L standard;
CL < 50 pF; RL > 1 kΩ;
AC load
7
8
−
MHz
αH
suppression of video signal
harmonics
CL < 50 pF; RL > 1 kΩ;
AC load; note 8a
35
40
−
dB
PSRR
power supply ripple rejection at
pin 21
video signal; grey level;
see Fig.16
B/G standard
32
35
−
dB
L standard
26
30
−
dB
CVBS buffer amplifier (only) and noise clipper (pins 10 and 22)
R22
input resistance
note 2
2.6
3.3
4.0
kΩ
C22
input capacitance
note 2
1.4
2
3.0
pF
V22
DC input voltage
1.5
1.8
2.1
V
Gv
voltage gain
B/G and L standard;
note 9
6.5
7
7.5
dB
V10(clu)
upper video clipping voltage
level
3.9
4.0
−
V
V10(cll)
lower video clipping voltage
level
−
1.0
1.1
V
R10
output resistance
−
−
10
Ω
Iint 10
DC internal bias current for
emitter-follower
2.0
2.5
−
mA
I10(max)(sink)
maximum AC and DC output
sink current
1.4
−
−
mA
I10(max)(source) maximum AC and DC output
source current
2.4
−
−
mA
1995 Mar 21
note 2
11
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
SYMBOL
TDA9812
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
B−1
−1 dB video bandwidth
B/G and L standard;
CL < 20 pF; RL > 1 kΩ;
AC load
8.4
11
−
MHz
B−3
−3 dB video bandwidth
B/G and L standard;
CL < 20 pF; RL > 1 kΩ;
AC load
11
14
−
MHz
Measurements from IF input to CVBS output (pin 10; 330 Ω between pins 21 and 22, sound carrier OFF)
Vo CVBS(p-p)
CVBS output signal voltage on
pin 10 (peak-to-peak value)
note 9
1.7
2.0
2.3
V
Vo CVBS(sync)
sync voltage level
B/G standard
−
1.35
−
V
L standard
−
1.35
−
V
∆Vo
deviation of CVBS output signal
voltage at B/G
50 dB gain control
−
−
0.5
dB
30 dB gain control
−
−
0.1
dB
∆Vo(blBG)
black level tilt in B/G standard
gain variation; note 10
−
−
1
%
∆Vo(blL)
black level tilt for worst case in
L standard
vision carrier modulated by −
test line (VITS) only; gain
variation; note 10
−
1.9
%
∆Gdiff
differential gain
“CCIR, line 330”
−
2
5
%
∆ϕdiff
differential phase
“CCIR, line 330”
−
1
2
deg
B−1
−1 dB video bandwidth
B/G and L standard;
CL < 20 pF; RL > 1 kΩ;
AC load
5
6
−
MHz
B−3
−3 dB video bandwidth
B/G and L standard;
CL < 20 pF; RL > 1 kΩ;
AC load
7
8
−
MHz
S/N (W)
weighted signal-to-noise ratio
see Figs 9 and 10; note 11 56
60
−
dB
S/N
unweighted signal-to-noise ratio
see Figs 9 and 10; note 11 49
53
−
dB
IMα1.1
intermodulation attenuation at
‘blue’
f = 1.1 MHz; see Fig.11;
note 12
58
64
−
dB
intermodulation attenuation at
‘yellow’
f = 1.1 MHz; see Fig.11;
note 12
60
66
−
dB
intermodulation attenuation at
‘blue’
f = 3.3 MHz; see Fig.11;
note 12
58
64
−
dB
intermodulation attenuation at
‘yellow’
f = 3.3 MHz; see Fig.11;
note 12
59
65
−
dB
αc(rms)
residual vision carrier
(RMS value)
B/G and L standard;
fundamental wave and
harmonics
−
2
5
mV
αH(sup)
suppression of video signal
harmonics
note 8a
35
40
−
dB
αH(spur)
spurious elements
note 8b
40
−
−
dB
IMα3.3
1995 Mar 21
12
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
SYMBOL
PSRR
PARAMETER
power supply ripple rejection at
pin 10
TDA9812
CONDITIONS
MIN.
TYP.
MAX.
UNIT
video signal; grey level;
see Fig.16
B/G standard
25
28
−
dB
L standard
20
23
−
dB
VIF-AFC detector (pin 28)
I28
tresp
charging current
B/G and L standard;
note 10
0.75
1
1.25
mA
additional charging current
L standard in event of
missing VITS pulses and
no white video content
1.9
2.5
3.1
µA
discharging current
B/G standard
15
20
25
µA
normal mode L
225
300
375
nA
fast mode L
30
40
50
µA
AGC response to an increasing
VIF step
B/G and L standard;
note 13
−
0.05
0.1
ms/dB
AGC response to a decreasing
VIF step
B/G standard
−
2.2
3.5
ms/dB
fast mode L
−
1.1
1.8
ms/dB
normal mode L; note 13
−
150
240
ms/dB
−2
−6
−10
dB
L standard
−
1.95
−
V
L standard; fast mode L
−
1.65
−
V
∆IF
VIF amplitude step for activating L standard
fast AGC mode
V3
threshold voltage level
additional charging current
see Fig.13
Tuner AGC (pin 19)
IF input signal voltage for
minimum starting point of tuner
take-over (RMS value)
input at pins 1 and 2;
RTOP = 22 kΩ;
I19 = 0.4 mA
−
2
5
mV
IF input signal voltage for
maximum starting point of tuner
take-over (RMS value)
input at pins 1 and 2;
RTOP = 0 Ω; I19 = 0.4 mA
50
100
5
mV
permissible output voltage
from external source;
note 2
−
−
13.2
V
saturation voltage
I19 = 1.5 mA
−
−
0.2
V
∆V19
variation of take-over point by
temperature
I19 = 0.4 mA
−
0.03
0.07
dB/K
I19(sink)
sink current
no tuner gain reduction;
see Figs 5 and 6
V19 = 12 V
−
−
2.5
µA
V19 = 13.2 V
−
−
5
µA
maximum tuner gain
reduction
1.5
2
2.6
mA
tuner gain current from
20 to 80%
−
6
8
dB
Vi(rms)
V19
∆GIF
1995 Mar 21
IF slip by automatic gain control
13
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
SYMBOL
TDA9812
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
AFC circuit (pin 23); see Fig.12 and note 14
S
control steepness ∆I23/∆f
note 15
0.5
0.72
1.0
µA/kHz
∆fIF
frequency variation by
temperature
IAFC = 0; note 5
−20
−
+20
ppm/K
V23
output voltage upper limit
see Fig.12
VP − 0.6
VP −
0.3
−
V
output voltage lower limit
see Fig.12
−
0.3
0.6
V
I23(source)
output source current
150
200
250
µA
I23(sink)
output sink current
150
200
250
µA
∆I23(p-p)
residual video modulation
current (peak-to-peak value)
B/G and L standard
−
20
30
µA
Sound IF amplifier (pins 31 and 32)
Vi(SIF)(rms)
input signal voltage sensitivity
(RMS value)
−3 dB video at AF output;
pin 12
−
70
100
µV
Vi(max)(rms)
maximum input signal voltage
(RMS value)
+1 dB video at AF output;
pin 12
80
140
−
mV
GSIF
SIF gain control range
see Figs 7 and 8
60
66
−
dB
Ri(diff)
differential input resistance
note 2
1.7
2.2
2.7
kΩ
note 2
Ci(diff)
differential input capacitance
V31/32
DC input voltage
αSIF/VIF
crosstalk attenuation between
SIF and VIF input
1.2
1.7
2.5
pF
−
3.4
−
V
50
−
−
dB
0.8
1.2
1.6
mA
normal mode AM
1
1.4
1.8
µA
fast mode AM
60
85
110
µA
−
see
−
formula
between pins 1 and 2 and
pins 31 and 32; note 16
SIF-AFC detector (pin 8)
I8
charging current
discharging current
Intercarrier mixer (B/G standard) (pin 20)
Vo(rms)
IF intercarrier level (RMS value)
SC; note 17
B−3
−3 dB intercarrier bandwidth
upper limit
7.5
9
−
MHz
αc(rms)
residual sound carrier
(RMS value)
fundamental wave and
harmonics
−
2
−
mV
R20
output resistance
note 2
−
−
25
Ω
V20
DC output voltage
−
2.0
−
V
Iint20
DC internal bias current for
emitter-follower
1.5
1.9
−
mA
I20(max)(sink)
maximum AC and DC output
sink current
1.1
1.5
−
mA
I20(max)(source) maximum AC and DC output
source current
3.0
3.5
−
mA
1995 Mar 21
14
mV
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
SYMBOL
TDA9812
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Limiter amplifier (pin 17); see note 18
Vi FM(rms)
input signal voltage for lock-in
(RMS value)
−
−
100
µV
Vi FM(rms)
input signal voltage (RMS value)  S + N 
- = 40 dB
 ------------N 
−
300
400
µV
allowed input signal voltage
(RMS value)
200
−
−
mV
480
600
720
Ω
−
2.8
−
V
upper limit
7.0
−
−
MHz
lower limit
−
−
4.0
MHz
upper limit
9.0
−
−
MHz
lower limit
−
−
3.5
MHz
−
−
4
µs
200
250
300
mV
R17
input resistance
V17
DC input voltage
note 2
FM-PLL detector
fi FM(catch)
fi FM(hold)
tacqu
catching range of PLL
holding range of PLL
acquisition time
FM operation (B/G standard) (pin 12); see notes 18 and 1818
Vo AF12(rms)
AF output signal voltage (RMS
value)
without de-emphasis;
short-circuit from
pin 13 to pin 14; 27 kHz
(54% FM deviation);
see Fig.17 and note 19
Rx = 470 Ω
Rx = 0 Ω
400
500
600
mV
Vo AF12(cl)
AF output clipping signal voltage THD < 1.5%
level
1.3
1.4
−
V
∆fAF
frequency deviation
−
−
53
kHz
∆Vo
temperature drift of AF output
signal voltage
−
3
7
10−3 dB/K
V15
DC voltage at decoupling
capacitor
voltage dependent on
VCO frequency; note 20
1.2
−
3.0
V
R12
output resistance
note 2
−
−
100
Ω
−
1⁄ V
2 P
−
V
THD < 1.5%; note 19
V12
DC output voltage
I12(max)(sink)
maximum AC and DC output
sink current
−
−
1.1
mA
I12(max)(source) maximum AC and DC output
source current
−
−
1.1
mA
100
125
−
kHz
−
0.15
0.5
%
B−3
−3 dB video bandwidth
THD
total harmonic distortion
1995 Mar 21
tracked with supply
voltage
without de-emphasis;
short-circuit from
pin 13 to pin 14
15
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
SYMBOL
TDA9812
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
S/N (W)
weighted signal-to-noise ratio
FM-PLL only; with 50 µs
de-emphasis; 27 kHz
(54% FM deviation);
“CCIR 468-4”
55
60
−
dB
αc(rms)
residual sound carrier
(RMS value)
fundamental wave and
harmonics
−
−
75
mV
αAM
AM suppression
50 µs de-emphasis; AM:
f = 1 kHz; m = 0.3 refer to
27 kHz (54% FM
deviation)
46
50
−
dB
α12
mute attenuation of AF signal
B/G and L standard
70
75
−
dB
∆V12
DC jump voltage of AF output
terminal for switching AF output
to mute state and vice versa
FM-PLL in lock mode
−
±50
±150
mV
PSRR
power supply ripple rejection at
pin 12
Rx = 470 Ω; see Fig.16
26
30
−
dB
27
−
−
dB
black picture
45
51
−
dB
white picture
45
51
−
dB
6 kHz sine wave (black
to white modulation)
40
46
−
dB
sound carrier
subharmonics;
f = 2.75 MHz ±3 kHz
35
40
−
dB
AF performance for FM operation (B/G standard); see notes 21, 22 and 23; Table 1
S/N (W)
weighted signal-to-noise ratio
PC/SC ratio at pins 1 and
2; 27 kHz (54% FM
deviation); “CCIR 468-4”
AM operation (L standard) (pin 12); see note 24
Vo AF12(rms)
AF output signal voltage (RMS
value)
54% modulation
400
500
600
mV
THD
total harmonic distortion
54% modulation;
see Fig.15
−
0.5
1.0
%
B−3
−3 dB AF bandwidth
100
125
−
kHz
S/N (W)
weighted signal-to-noise ratio
47
53
−
dB
−
V
−
dB
“CCIR 468-4”; see Fig.14
V12
DC potential voltage
tracked with supply
voltage
−
1⁄ V
2 P
PSRR
power supply ripple rejection
see Fig.16
22
25
1995 Mar 21
16
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
SYMBOL
PARAMETER
TDA9812
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Standard switch (pin 9); see also Table 2
DC potential voltage for
preferred settings
V9
input voltage for negative
standard
B/G standard; note 25
2.8
−
VP
V
input voltage for negative
standard
negative AGC OFF
1.3
−
2.3
V
input voltage for positive
standard
L standard
0
−
0.8
V
V9 = 0 V
190
250
310
µA
note 25
2.8
−
VP
V
−
−
2.0
V
150
200
250
µA
LOW level input current
IIL
L/L accent switch (pin 11)
V11
DC potential voltage for
L standard VCO frequency
switching
L standard
L/L accent standard and
alignment
LOW level input current
IIL
V11 = 0 V
Notes
1. Values of video and sound parameters are decreased at VP = 4.5 V.
2. This parameter is not tested during production and is only given as application information for designing the television
receiver.
3. Loop bandwidth BL = 60 kHz (natural frequency fn = 15 kHz; damping factor d = 2; calculated with sync level within
gain control range). Resonance circuit of VCO: Q0 > 50; Cext = 8.2 pF ±0.25 pF; Cint ≈ 8.5 pF (loop voltage
approximately 2.7 V).
4. Temperature coefficient of external LC-circuit is equal to zero.
5. Vi IF = 10 mV RMS; ∆f = 1 MHz (VCO frequency offset related to picture carrier frequency); white picture video
modulation.
6. Vi IF signal for nominal video signal.
7. Offset current measured between pin 7 and half of supply voltage (VP = 2.5 V) under the following conditions: no
input signal at VIF input (pins 1 and 2) and VIF amplifier gain at minimum (V28 = VP). Due to sample-and-hold mode
of the FPLL in L standard, the leakage current of the loop filter capacitor (C = 220 nF) should not exceed 500 nA.
8. Measurements taken with SAW filter G1962 (sound shelf: 20 dB); loop bandwidth BL = 60 kHz.
a) Modulation VSB; sound carrier OFF; fvideo > 0.5 MHz.
b) Sound carrier ON; SIF SAW filter L9453; fvideo = 10 kHz to 10 MHz.
9. The 7 dB buffer gain accounts for 1 dB loss in the sound trap. Buffer output signal is typical 2 V (p-p), in event of
CVBS video amplifier output typical 1 V (p-p). If no sound trap is applied a 330 Ω resistor must be connected from
output to input (from pin 21 to pin 22).
10. The leakage current of the AGC capacitor should not exceed 1 µA at B/G standard respectively 10 nA current at
L standard. Larger currents will increase the tilt.
11. S/N is the ratio of black-to-white amplitude to the black level noise voltage (RMS value, pin 10). B = 5 MHz weighted
in accordance with “CCIR 567”.
1995 Mar 21
17
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
TDA9812
12. The intermodulation figures are defined: α1.1 = 20 log (V0 at 4.4 MHz/V0 at 1.1 MHz) + 3.6 dB; α1.1 value at 1.1 MHz
referenced to black/white signal; α3.3 = 20 log (V0 at 4.4 MHz/V0 at 3.3 MHz); α3.3 value at 3.3 MHz referenced to
colour carrier.
13. Response speed valid for a VIF input level range of 200 µV up to 70 mV.
14. To match the AFC output signal to different tuning systems a current source output is provided. The test circuit is
given in Fig.12. The AFC-steepness can be changed by the resistors at pin 23.
15. Depending on the ratio ∆C/C0 of the LC resonant circuit of VCO (Q > 50; see note 3; C0 = Cint + Cext).
16. Source impedance: 2.3 kΩ in parallel to 12 pF (SAW filter); fIF = 38.9 MHz.
17. The intercarrier output signal at pin 20 can be calculated by the following formula taking into account the video output
signal at pin 21 (Vo video(p-p) = 1 V typical) as a reference:
1
V o ( rms ) = 1V ( p – p ) × ----------- × 10
2 2
V iSC
------------ ( dB ) + 6 dB ± 3 dB
V iPC
-------------------------------------------------------------20
1
with ----------- = correction term for RMS value,
2 2
V iSC
------------ ( dB ) = sound-to-picture carrier ratio at VIF input (pins 1 and 2) in dB,
V iPC
6 dB = correction term of internal circuitry
and ±3 dB = tolerance of video output and intercarrier output amplitude Vo(rms).
V iSC
Example: SAW filter G1962 (sound shelf: 20 dB) ⇒ ----------- = – 27 dB ⇒ Vo(rms) = 32 mV typical.
V iPC
18. Input level for second IF from an external generator with 50 Ω source impedance. AC-coupled with 10 nF capacitor,
fmod = 1 kHz, 27 kHz (54% FM deviation) of audio references. A VIF/SIF input signal is not permitted. Pins 8 and 28
have to be connected to positive supply voltage for minimum IF gain. S/N and THD measurements are taken at 50 µs
de-emphasis.
Second IF input level 10 mV RMS.
19. Measured with an FM deviation of 27 kHz the typical AF output signal is 500 mV RMS (Rx = 0 Ω; see Fig.17). By
using Rx = 470 Ω the AF output signal is attenuated by 6 dB (250 mV RMS). For handling an FM deviation of more
than 53 kHz the AF output signal has to be reduced by using Rx in order to avoid clipping (THD < 1.5%). For an FM
deviation up to 100 kHz an attenuation of 6 dB is recommended with Rx = 470 Ω.
20. The leakage current of the decoupling capacitor (2.2 µF) should not exceed 1 µA.
21. For all S/N measurements the used vision IF modulator has to meet the following specifications:
Incidental phase modulation for black-to-white jump less than 0.5 degrees.
Picture-to-sound carrier ratio; PC/SC = 13 dB; (transmitter).
Sound shelf of VIF SAW filter: minimum 20 dB.
22. Measurements taken with SAW filter K6256 (Siemens) for vision and sound IF (sound shelf: 20 dB). Input level
Vi SIF = 10 mV RMS, 27 kHz (54% FM deviation).
23. The PC/SC ratio at pins 1 and 2 is calculated as the addition of TV transmitter PC/SC ratio and SAW filter PC/SC
ratio. This PC/SC ratio is necessary to achieve the S/N(W) values as noted. A different PC/SC ratio will change these
values.
24. Measurements taken with SAW filter L9453 (Siemens) for AM sound IF (suppressed picture carrier).
25. The input voltage has to be V > 2.8 V, or open-circuit.
1995 Mar 21
18
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
Table 1
TDA9812
Input frequencies and carrier ratios
DESCRIPTION
SYMBOL B/G STANDARD
L STANDARD
L/L ACCENT
STANDARD
UNIT
Picture carrier
fpc
38.9
38.9
33.9
MHz
Sound carrier
fsc
33.4
32.4
40.4
MHz
Picture-to-sound carrier ratio
SC
13
10
10
Table 2
dB
Switch logic
STANDARD SWITCH
2.8 V to VP
SELECTED STANDARD
B/G
VIDEO
POLARITY
negative
FM-PLL
AF-AMPLIFIER
ON
FM
1.3 to 2.3 V
B/G, with external VIF AGC
negative
ON
FM
0 to 0.8 V
L
positive
OFF
AM
1995 Mar 21
19
1995 Mar 21
20
50
Ω
50
Ω
4
2
3
5
1:1
1
(1)
1
32
(28)
4
2
3
5
1:1
1
(1) See note 19 in Chapter.“Characteristics”.
VIF
input
SIF
input
(2)
2
31
(27)
100
nF
n.c.
4
29
(26)
n.c.
5
28
(25)
VIF
AGC
(4)
6
27
(24)
22
kΩ
220
nF
(5)
7
26
(23)
390
Ω
2.2
µF
loop
filter
GND
TOP
2.2
µF
(6)
8
2.2
µF
(7)
9
5V
standard
switch
SIF
AGC
24
(21)
(8)
10
23
(20)
(9)
11
L/L
adjustment
AF output
(10)
12
21
(18)
(12)
14
19
(16)
tuner
AGC
10 nF
5.6
kΩ
(11)
13
20
(17)
intercarrier
output
video
output
330
Ω
22
(19)
22
kΩ
22
kΩ
CVBS
22
kΩ
100
nF
TDA9812
25
(22)
8.2 pF
Q 0 50
Cref
22 kΩ
AFC
Fig.4 Test circuit (SO28 pinning in parenthesis).
C BL
(3)
3
30
n.c.
10
nF
VP
22
µF
n.c.
(14)
16
17
(15)
MBE437
C DEC
(1)
Rx
(13)
15
18
SFT
5.5 MA
n.c.
560 Ω
10
nF
5.6
kΩ
FM
mute switch
Multistandard VIF-PLL and
FM-PLL/AM demodulator
handbook, full pagewidth
Philips Semiconductors
Preliminary specification
TDA9812
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
TDA9812
MBE438
MBE439
70
1.0
handbook,
gain halfpage
gain =
I tuner =
(dB)
60
1.0
handbook, halfpage
I tuner
gain =
I tuner =
0.06
(mA)
I tuner
(mA)
VIF input
(1, 2)
(mV RMS)
50
0
0
0.6
40
30
1.0
20
10
R TOP = 22 kΩ
11 kΩ
1.0
6
R TOP = 22 kΩ
0 kΩ
11 kΩ
0 kΩ
60
0
2.0
10
1.0
1.5
2.0
2.5
3.0
3.5
2.0
4.5
4.0
V28 (V)
1.0
Fig.5 Typical tuner AGC characteristic.
1.5
2.0
2.5
3.0
3.5
4.0
4.5
V28 (V)
Fig.6 Typical tuner VIF characteristic.
MBE440
MBE441
120
1000
handbook, halfpage
handbook,
halfpage
SIF input
(dBµV)
(31, 32)
(mV RMS)
100
100
80
10
60
1
40
0.1
20
0.01
0
1.0
1.5
2.0
2.5
3.0
3.5
0.001
1.0
4.5
4.0
V8 (V)
Fig.7 Typical AGC characteristic.
1995 Mar 21
1.5
2.0
2.5
3.0
3.5
4.0
4.5
V8 (V)
Fig.8 Typical SIF AGC characteristic.
21
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
TDA9812
MBE442
MBE443
70
70
handbook, halfpage
S/N
(dB)
handbook, halfpage
S/N
(dB)
60
60
50
50
40
40
30
30
20
20
10
10
0
60
Fig.9
40
20
0
0.06
0
20
V i IF (ms) (dB)
10 dB
13.2 dB
27 dB
27 dB
SC CC
BLUE
PC
SC CC
PC
YELLOW
MBE444
SC = Sound Carrier
CC = Chrominance Carrier
PC = Picture Carrier
all with respect to sync level.
The sound carrier levels take into account a sound shelf attenuation
of 20 dB (SWIF G1962).
Fig.11 Input signal conditions.
1995 Mar 21
60
600
V i IF(ms) (mV)
Fig.10 Typical signal-to-noise ratio as a function
of IF input voltage (mV).
3.2 dB
13.2 dB
6
10
Typical signal-to-noise ratio as a function
of IF input voltage (dB).
handbook, halfpage
0.6
22
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
TDA9812
handbook, full pagewidth
VP
VP = 5 V
22 kΩ
TDA9812 23
I 23
22 kΩ
V23
(V)
I 23
(µA)
4.5
200
3.5
100
2.5
0
1.5
100
0.5
200
MBE445
(source current)
(sink current)
38.5
38.9
39.3 f (MHz)
Fig.12 Measurement conditions and typical AFC characteristic.
2.5 V
zero carrier level
white level
1.8 V
black level
handbook,
2.6full
V pagewidth
white level
2.5 V
threshold level
1.95 V
black level
1.8 V
threshold level
1.65 V
sync level
1.5 V
sync level
1.5 V
zero carrier level
1.47 V
standard B/G
standard L
Fig.13 Typical video signal levels on output composite video (sound carrier OFF).
1995 Mar 21
23
MBE446
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
TDA9812
MBE447
10
CCIR-468
(dB)
0
handbook, full pagewidth
signal
10
20
30
40
50
noise
60
70
30
40
50
60
70
80
90
input voltage (dBµV)
100
Fig.14 Typical audio sound-to-noise ratio as a function of input signal at AM standard.
MBE448
1.25
handbook, full pagewidth
THD
(%)
1.0
0.75
0.5
0.25
0
10 2
10 1
1
10
f (kHz)
Fig.15 Typical total harmonic distortion as a function of input signal at AM standard.
1995 Mar 21
24
10 2
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
TDA9812
handbook, full pagewidth
VP = 5 V
100 mV
(f ripple = 70 kHz)
VP = 5 V
TDA9812
MBE449
t
Fig.16 Ripple rejection condition.
1995 Mar 21
25
1995 Mar 21
26
2
1
32
31
1 mA
n.c.
30
1.1
kΩ
1.1
kΩ
3
0.6
µA
1.1
kΩ
1.1
kΩ
28
GND
25 µA
25 µA
1 mA
6
9 kΩ
20 kΩ
3.6 V
3.6 V
3.6 V
n.c. n.c.
4
5
29
VP
67 µA
7
27
23 µA
VCO
70 kΩ
26
20
kΩ
20
kΩ
8
650
Ω
10 kΩ
9
13
kΩ
16 kΩ
3.6 V
TDA9812
10 kΩ
2.8 V
2.5
mA
420
Ω
24
10
1
1
kΩ kΩ
200 µA
9
kΩ
11
4.2 kΩ
3.6 V
23
12
22
4.2
kΩ
25
pF
2.3 mA
2.2
kΩ
120 Ω
2
kΩ
3.3
kΩ
10 kΩ
13
650 Ω
300 µA
4.2 kΩ
10 pF
3.6 V
2.0 mA
21
9 kΩ
3.6 V
14
1.7
pF
1.7 pF
40 kΩ
3.9
kΩ
10 pF
0.5 pF
15
40 kΩ
640 Ω
16
19
18
19
MBE451
n.c.
n.c.
2.5 mA
1.6 kΩ
10 kΩ
1.9 mA
20
Multistandard VIF-PLL and
FM-PLL/AM demodulator
Fig.17 Internal circuitry.
24
kΩ
420
Ω
25
handbook, full pagewidth
Philips Semiconductors
Preliminary specification
TDA9812
INTERNAL CIRCUITRY
1995 Mar 21
27
50
Ω
(1)
SWIF
G1962
(1)
SWIF
K9350
(1)
1
32
(28)
(1) Depends on standard.
(2) See note 19 in Chapter.“Characteristics”.
(3) Only required for external AGC mode.
IF
input
(2)
2
31
(27)
100
nF
n.c.
4
29
(26)
n.c.
5
28
(25)
VIF
AGC
(4)
6
27
(24)
22
kΩ
220
nF
(5)
7
26
(23)
390
Ω
2.2
µF
loop
filter
GND
TOP
2.2
µF
2.2
µF
(7)
9
5V
standard
switch
SIF
AGC
(6)
8
TDA9812
(9)
11
L/L
adjustment
AF output
(10)
12
21
(18)
15
µH
(12)
14
19
(16)
tuner
AGC
10 nF
5.6
kΩ
(11)
13
20
(17)
intercarrier
output
video
output
330
Ω
22
(19)
22
kΩ
22
kΩ
CVBS
22
kΩ
(8)
10
23
(20)
AFC
(3)
100
nF
24
(21)
8.2 pF
25
(22)
Cref
22 kΩ
Fig.18 Application circuit (SO28 pinning in parenthesis).
C BL
(3)
3
30
n.c.
10
nF
VP
22
µF
n.c.
(14)
16
17
(15)
C DEC
(2)
Rx
(13)
15
18
n.c.
5.5 MHz
560 Ω
5.6
kΩ
MBE450
10
nF
FM
mute switch
Multistandard VIF-PLL and
FM-PLL/AM demodulator
handbook, full pagewidth
Philips Semiconductors
Preliminary specification
TDA9812
APPLICATION INFORMATION
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
TDA9812
PACKAGE OUTLINES
SDIP32: plastic shrink dual in-line package; 32 leads (400 mil)
SOT232-1
ME
seating plane
D
A2 A
A1
L
c
e
Z
(e 1)
w M
b1
MH
b
17
32
pin 1 index
E
1
16
0
5
10 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A
max.
A1
min.
A2
max.
b
b1
c
D (1)
E (1)
e
e1
L
ME
MH
w
Z (1)
max.
mm
4.7
0.51
3.8
1.3
0.8
0.53
0.40
0.32
0.23
29.4
28.5
9.1
8.7
1.778
10.16
3.2
2.8
10.7
10.2
12.2
10.5
0.18
1.6
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
OUTLINE
VERSION
REFERENCES
IEC
JEDEC
EIAJ
ISSUE DATE
92-11-17
95-02-04
SOT232-1
1995 Mar 21
EUROPEAN
PROJECTION
28
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
TDA9812
SO28: plastic small outline package; 28 leads; body width 7.5 mm
SOT136-1
D
E
A
X
c
y
HE
v M A
Z
15
28
Q
A2
A
(A 3)
A1
pin 1 index
θ
Lp
L
1
14
e
bp
0
detail X
w M
5
10 mm
scale
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
UNIT
A
max.
A1
A2
A3
bp
c
D (1)
E (1)
e
HE
L
Lp
Q
v
w
y
mm
2.65
0.30
0.10
2.45
2.25
0.25
0.49
0.36
0.32
0.23
18.1
17.7
7.6
7.4
1.27
10.65
10.00
1.4
1.1
0.4
1.1
1.0
0.25
0.25
0.1
0.9
0.4
0.012 0.096
0.004 0.089
0.01
0.019 0.013
0.014 0.009
0.71
0.69
0.30
0.29
0.050
0.42
0.39
0.055
0.043
0.016
0.043
0.039
0.01
0.01
0.004
0.035
0.016
inches
0.10
Z
(1)
θ
Note
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.
REFERENCES
OUTLINE
VERSION
IEC
JEDEC
SOT136-1
075E06
MS-013AE
1995 Mar 21
EIAJ
EUROPEAN
PROJECTION
ISSUE DATE
91-08-13
95-01-24
29
o
8
0o
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
TDA9812
A modified wave soldering technique is recommended
using two solder waves (dual-wave), in which a turbulent
wave with high upward pressure is followed by a smooth
laminar wave. Using a mildly-activated flux eliminates the
need for removal of corrosive residues in most
applications.
SOLDERING
Plastic dual in-line packages
BY DIP OR WAVE
The maximum permissible temperature of the solder is
260 °C; this temperature must not be in contact with the
joint for more than 5 s. The total contact time of successive
solder waves must not exceed 5 s.
BY SOLDER PASTE REFLOW
Reflow soldering requires the solder paste (a suspension
of fine solder particles, flux and binding agent) to be
applied to the substrate by screen printing, stencilling or
pressure-syringe dispensing before device placement.
The device may be mounted up to the seating plane, but
the temperature of the plastic body must not exceed the
specified storage maximum. If the printed-circuit board has
been pre-heated, forced cooling may be necessary
immediately after soldering to keep the temperature within
the permissible limit.
Several techniques exist for reflowing; for example,
thermal conduction by heated belt, infrared, and
vapour-phase reflow. Dwell times vary between 50 and
300 s according to method. Typical reflow temperatures
range from 215 to 250 °C.
REPAIRING SOLDERED JOINTS
Apply a low voltage soldering iron below the seating plane
(or not more than 2 mm above it). If its temperature is
below 300 °C, it must not be in contact for more than 10 s;
if between 300 and 400 °C, for not more than 5 s.
Preheating is necessary to dry the paste and evaporate
the binding agent. Preheating duration: 45 min at 45 °C.
REPAIRING SOLDERED JOINTS (BY HAND-HELD SOLDERING
IRON OR PULSE-HEATED SOLDER TOOL)
Plastic small outline packages
During placement and before soldering, the component
must be fixed with a droplet of adhesive. After curing the
adhesive, the component can be soldered. The adhesive
can be applied by screen printing, pin transfer or syringe
dispensing.
Fix the component by first soldering two, diagonally
opposite, end pins. Apply the heating tool to the flat part of
the pin only. Contact time must be limited to 10 s at up to
300 °C. When using proper tools, all other pins can be
soldered in one operation within 2 to 5 s at between 270
and 320 °C. (Pulse-heated soldering is not recommended
for SO packages.)
Maximum permissible solder temperature is 260 °C, and
maximum duration of package immersion in solder bath is
10 s, if allowed to cool to less than 150 °C within 6 s.
Typical dwell time is 4 s at 250 °C.
For pulse-heated solder tool (resistance) soldering of VSO
packages, solder is applied to the substrate by dipping or
by an extra thick tin/lead plating before package
placement.
BY WAVE
1995 Mar 21
30
Philips Semiconductors
Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator
TDA9812
DEFINITIONS
Data sheet status
Objective specification
This data sheet contains target or goal specifications for product development.
Preliminary specification
This data sheet contains preliminary data; supplementary data may be published later.
Product specification
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). 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.
Application information
Where application information is given, it is advisory and does not form part of the specification.
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 customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
1995 Mar 21
31
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SCD39
© Philips Electronics N.V. 1995
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
533061/50/01/pp32
Document order number:
Date of release: 1995 Mar 21
9397 750 00108