DATA SH EET
Preliminary specification
File under Integrated Circuits, IC02 1995 Mar 21
INTEGRATED CIRCUITS
Philips Semiconductors
TDA9812
Multistandard VIF-PLL and
FM-PLL/AM demodulator
1995 Mar 21 2
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
FEATURES
•5 V positive supply voltage
•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.
GENERAL DESCRIPTION
The TDA9812/T is an integrated circuit for multistandard
vision IF signal processing and AM and FM sound
demodulation in TV and VTR sets.
ORDERING INFORMATION
TYPE
NUMBER PACKAGE
NAME DESCRIPTION VERSION
TDA9812 SDIP32 plastic shrink dual in-line package; 32 leads (400 mil) SOT232-1
TDA9812T SO28 plastic small outline package; 28 leads body width 7.5 mm SOT136-1
1995 Mar 21 3
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
QUICK REFERENCE DATA
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
VPsupply voltage 4.5 5 5.5 V
IPsupply current 82 96 110 mA
Vi VIF(rms) vision IF input signal voltage
sensitivity (RMS value) −1 dB video at output −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 B/G and L standard;
CL<20 pF; RL>1kΩ;
AC load
78−MHz
S/N(W) weighted signal-to-noise ratio for
video 56 60 −dB
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
THD total harmonic distortion 54% modulation
FM −0.15 0.5 %
AM −0.5 1.0 %
S/N (W) weighted signal-to-noise ratio 54% modulation
FM −60 −dB
AM 47 53 −dB
1995 Mar 21 4
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
BLOCK DIAGRAM
handbook, full pagewidth
INTERCARRIER
MIXER AND
AM DEMODULATOR
VCO TWD AFC DETECTOR
TUNER AND VIF-AGC
FPLL VIDEO DEMODULATOR
AND AMPLIFIER
SIF
AMPLIFIER
SIF-AGC
INTERNAL VOLTAGE
STABILIZER FM DETECTOR (PLL)
AF AMPLIFIER
VIF AMPLIFIER
SIF
VIF
5.5
TDA9812
(26)
29 (24)
27 (23)
26 (7)
9(6)
8(9)
11 (17)
20 (15)
17 (14)
16 (12)
14 (11)
13
12 (10)
15 (13)
22 (19)
10 (8)
21 (18)
23
(20)
24
(21)
25
(22)
7
(5)
19
(16)
28
(25)
2 (2)
1 (1)
32 (28)
31 (27)
6
(4)
3
(3) 3018
54
Vi VIF2
Vi VIF1
Vi SIF2
Vi SIF1
5 V
VGND
P
VP
1/2
Cref
CSAGC
standard
switch
STD
L/L
switch SIF
Vo(int)
DEEM
n.c.
I
ViFM
AF/AM
Vo AF
DEEM O
de-emphasis
VIDEO
BUFFER
Vi(vid)
Vo (vid)
CVBS
2 V (p-p)
video
1 V (p-p)
n.c.n.c.n.c. n.c. AFC
VCO1
VCO2
2 x fPC
tuner
AGC loop
filter
TPLL
TOP
CAGC CBL
TADJ
TAGC
MBE452
Fig.1 Block diagram (TDA9812T pinning in parenthesis).
1995 Mar 21 5
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
VoAF 12 10 audio voltage frequency output
DEEMI13 11 de-emphasis input
DEEMO14 12 de-emphasis output
CDEC 15 13 decoupling capacitor
n.c. 16 14 not connected
ViFM 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 1⁄2VP reference capacitor
GND 27 24 ground
CVAGC 28 25 VIF AGC capacitor
VP29 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 6
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
Fig.2 Pin configuration (SDIP32).
handbook, halfpage
TDA9812
MBE436
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
V
V
C
TADJ
n.c.
n.c.
T
C
STD
V
LSWI
V
DEEM
DEEM
C
n.c.
V
V
V
C
GND
n.c.
C
VCO2
VCO1
AFC
V
V
V
TAGC
n.c.
V
DEC
O
I
o AF
o CVBS
SAGC
PLL
BL
i VIF2
i VIF1
P
i SIF1
i SIF2
VAGC
ref
i FM
o(int)
o(vid)
i(vid)
Fig.3 Pin configuration (SO28).
handbook, halfpage
TDA9812T
MBE435
1
2
3
4
5
6
7
8
9
10
11
12
13
14
V
V
C
TADJ
T
C
STD
V
LSWI
V
DEEM
DEEM
C
n.c.
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
V
V
C
GND
C
VCO2
VCO1
AFC
V
V
V
TAGC
V
DEC
O
I
o AF
o CVBS
SAGC
PLL
BL
i VIF2
i VIF1
P
i SIF1
i SIF2
VAGC
ref
i FM
o(int)
o(vid)
i(vid)
1995 Mar 21 7
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
FUNCTIONAL DESCRIPTION
Vision IF amplifier
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.
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.
VCO, travelling wave divider and AFC
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 free-
running 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 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.
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.
1995 Mar 21 8
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
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.
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.
Intercarrier mixer
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.
AM demodulator
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.
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
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.
•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.
Internal voltage stabilizer and 1⁄2VP-reference
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.
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.
1995 Mar 21 9
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).
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 PARAMETER CONDITIONS MIN. MAX. UNIT
VPsupply voltage (pin 29) maximum chip temperature
of +120 °C; note 1 0 5.5 V
Vivoltage at pins 1 to 9, 11 to 19,
22, 23 and 28 to 32 0V
PV
t
s(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 note 2 −300 +300 V
SYMBOL PARAMETER VALUE UNIT
Rth j-a thermal resistance from junction to ambient in free air
SDIP32 60 K/W
SO28 80 K/W
1995 Mar 21 10
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
CHARACTERISTICS
SDIP32 pinning; VP=5V; T
amb = +25 °C; see Table 1 for input frequencies and level; input level ViIF1,2=10mV
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)
VPsupply voltage note 1 4.5 5 5.5 V
IPsupply current 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
True synchronous video demodulator; see note 3
fVCO(max) maximum oscillator frequency
for carrier regeneration f=2f
pc 125 130 −MHz
∆fVCO oscillator drift (free-running) as a
function of temperature IAFC = 0; note 4 −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
∆fpc(capt) 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(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 11
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
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 note 2 −−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
B−1−1 dB video bandwidth B/G and L standard;
CL<50 pF; RL>1kΩ;
AC load
56−MHz
B−3−3 dB video bandwidth B/G and L standard;
CL<50 pF; RL>1kΩ;
AC load
78−MHz
αHsuppression of video signal
harmonics CL<50 pF; RL>1kΩ;
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
Gvvoltage 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 note 2 −−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
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
1995 Mar 21 12
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
B−1−1 dB video bandwidth B/G and L standard;
CL<20 pF; RL>1kΩ;
AC load
8.4 11 −MHz
B−3−3 dB video bandwidth B/G and L standard;
CL<20 pF; RL>1kΩ;
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
∆Vodeviation 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%
∆V
o(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”
−25%
∆ϕdiff differential phase
“CCIR, line 330”
−1 2 deg
B−1−1 dB video bandwidth B/G and L standard;
CL<20 pF; RL>1kΩ;
AC load
56−MHz
B−3−3 dB video bandwidth B/G and L standard;
CL<20 pF; RL>1kΩ;
AC load
78−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
IMα3.3 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
−25mV
α
H(sup) suppression of video signal
harmonics note 8a 35 40 −dB
αH(spur) spurious elements note 8b 40 −−dB
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
1995 Mar 21 13
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
PSRR power supply ripple rejection at
pin 10 video signal; grey level;
see Fig.16
B/G standard 25 28 −dB
L standard 20 23 −dB
VIF-AFC detector (pin 28)
I28 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
tresp 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
∆IF VIF amplitude step for activating
fast AGC mode L standard −2−6−10 dB
V3threshold voltage level
additional charging current see Fig.13
L standard −1.95 −V
L standard; fast mode L −1.65 −V
Tuner AGC (pin 19)
Vi(rms) IF input signal voltage for
minimum starting point of tuner
take-over (RMS value)
input at pins 1 and 2;
RTOP =22kΩ;
I19 = 0.4 mA
−25mV
IF input signal voltage for
maximum starting point of tuner
take-over (RMS value)
input at pins 1 and 2;
RTOP =0Ω; I19 = 0.4 mA 50 100 5 mV
V19 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 =12V −−2.5 µA
V19 = 13.2 V −−5µA
maximum tuner gain
reduction 1.5 2 2.6 mA
∆GIF IF slip by automatic gain control tuner gain current from
20 to 80% −68dB
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
1995 Mar 21 14
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
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
Ci(diff) differential input capacitance note 2 1.2 1.7 2.5 pF
V31/32 DC input voltage −3.4 −V
αSIF/VIF crosstalk attenuation between
SIF and VIF input between pins 1 and 2 and
pins 31 and 32; note 16 50 −−dB
SIF-AFC detector (pin 8)
I8charging current 0.8 1.2 1.6 mA
discharging current normal mode AM 1 1.4 1.8 µA
fast mode AM 60 85 110 µA
Intercarrier mixer (B/G standard) (pin 20)
Vo(rms) IF intercarrier level (RMS value) SC; note 17 −see
formula −mV
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
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
1995 Mar 21 15
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
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) −300 400 µV
allowed input signal voltage
(RMS value) 200 −−mV
R17 input resistance note 2 480 600 720 Ω
V17 DC input voltage −2.8 −V
FM-PLL detector
fi FM(catch) catching range of PLL upper limit 7.0 −−MHz
lower limit −−4.0 MHz
fi FM(hold) holding range of PLL upper limit 9.0 −−MHz
lower limit −−3.5 MHz
tacqu acquisition time −−4µs
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 Ω200 250 300 mV
Rx=0Ω400 500 600 mV
Vo AF12(cl) AF output clipping signal voltage
level THD < 1.5% 1.3 1.4 −V
∆fAF frequency deviation THD < 1.5%; note 19 −−53 kHz
∆Votemperature drift of AF output
signal voltage −3710
−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
V12 DC output voltage tracked with supply
voltage −1⁄2VP−V
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
B−3−3 dB video bandwidth without de-emphasis;
short-circuit from
pin 13 to pin 14
100 125 −kHz
THD total harmonic distortion −0.15 0.5 %
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
SN+
N
--------------
40 dB=
1995 Mar 21 16
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
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
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”
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
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
“CCIR 468-4”
; see Fig.14 47 53 −dB
V12 DC potential voltage tracked with supply
voltage −1⁄2VP−V
PSRR power supply ripple rejection see Fig.16 22 25 −dB
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
1995 Mar 21 17
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
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. ViIF= 10 mV RMS; ∆f = 1 MHz (VCO frequency offset related to picture carrier frequency); white picture video
modulation.
6. ViIF
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 =V
P
). 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”
.
Standard switch (pin 9); see also Table 2
V9DC potential voltage for
preferred settings
input voltage for negative
standard B/G standard; note 25 2.8 −VPV
input voltage for negative
standard negative AGC OFF 1.3 −2.3 V
input voltage for positive
standard L standard 0 −0.8 V
IIL LOW level input current V9= 0 V 190 250 310 µA
L/L accent switch (pin 11)
V11 DC potential voltage for
L standard VCO frequency
switching
L standard note 25 2.8 −VPV
L/L accent standard and
alignment −−2.0 V
IIL LOW level input current V11 = 0 V 150 200 250 µA
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
1995 Mar 21 18
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
12. The intermodulation figures are defined: α1.1 = 20 log (V0at 4.4 MHz/V0at 1.1 MHz) + 3.6 dB;α1.1 value at 1.1 MHz
referenced to black/white signal; α3.3 = 20 log (V0at 4.4 MHz/V0at 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 µVupto70mV.
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=C
int +C
ext).
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:
with = correction term for RMS value,
= sound-to-picture carrier ratio at VIF input (pins 1 and 2) in dB,
6 dB = correction term of internal circuitry
and ±3 dB = tolerance of video output and intercarrier output amplitude Vo(rms).
Example: SAW filter G1962 (sound shelf: 20 dB) ⇒⇒ Vo(rms) = 32 mV typical.
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=0Ω; 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.
Vo rms()1V pp–() 1
22
-----------
×10
ViSC
ViPC
------------ dB()6dB 3dB±+
20
---------------------------------------------------------------
×=
1
22
-----------
ViSC
ViPC
------------ dB()
V
iSC
ViPC
------------ 27 dB–=
1995 Mar 21 19
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
Table 1 Input frequencies and carrier ratios
Table 2 Switch logic
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 dB
STANDARD SWITCH SELECTED STANDARD VIDEO
POLARITY FM-PLL AF-AMPLIFIER
2.8VtoV
PB/G negative 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 20
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
handbook, full pagewidth
Q050
8.2 pF
2.2
µFCref
GND
2.2
µF
VIF
AGC
22
kΩ
100
nF
10
nF
22 kΩ
AFC
VPvideo
output
intercarrier
output
330
Ωn.c.
tuner
AGC
10
nF
SFT
5.5 MA
560 Ω5.6
kΩ
FM
mute switch
1
2
5
4
3
1:1
50
Ω
SIF
input
1
2
5
4
3
1:1
50
Ω
VIF
input
32
(28)
(1)
1
TDA9812
CBL
100
nF
n.c.
n.c. n.c. TOP
22
kΩ
390
Ω
loop
filter
220
nF
SIF
AGC
2.2
µF22
kΩ
5 V
standard
switch CVBS
22
kΩ
L/L
adjustment
AF output
5.6
kΩ
10 nF
R
22
µF
n.c.
CDEC
x
(1)
31
(27)
(2)
2
30
(3)
3
29
(26)
4
28
(25)
5
27
(24)
(4)
6
26
(23)
(5)
7
25
(22)
(6)
8
24
(21)
(7)
9
23
(20)
(8)
10
22
(19)
(9)
11
21
(18)
(10)
12
20
(17)
(11)
13
19
(16)
(12)
14
18
(13)
15
17
(15)
(14)
16
MBE437
(1) See note 19 in Chapter.“Characteristics”.
Fig.4 Test circuit (SO28 pinning in parenthesis).
1995 Mar 21 21
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
Fig.5 Typical tuner AGC characteristic.
handbook, halfpage
4.5
2.0
1.0
1.0
0
70
50
10
0
20
40
60
101.0 2.0 2.5 3.01.5 3.5 4.0
MBE438
30
gain
(dB)
V (V)
28
Ituner
(mA)
R = 22 kΩ
TOP 11 kΩ0 kΩ
I =
tuner
gain =
Fig.6 Typical tuner VIF characteristic.
handbook, halfpage
4.5
2.0
1.0
1.0
0
60
6
0.6
0.06
1.0 2.0 2.5 3.01.5 3.5 4.0
MBE439
VIF input
(1, 2)
(mV RMS)
V (V)
28
Ituner
(mA)
R = 22 kΩ
TOP 11 kΩ0 kΩ
I =
tuner
gain =
Fig.7 Typical AGC characteristic.
handbook, halfpage
4.5
120
40
20
60
100
01.0 2.0 2.5 3.01.5 3.5 4.0
MBE440
80
(dBµV)
V (V)
8
Fig.8 Typical SIF AGC characteristic.
handbook, halfpage
4.5
0.1
0.01
0.001
1
100
1000
1.0 2.0 2.5 3.01.5 3.5 4.0
MBE441
10
SIF input
(31, 32)
(mV RMS)
V (V)
8
1995 Mar 21 22
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
handbook, halfpage
0
70
20
10
30
50
60
060 40 20 20
MBE442
40
S/N
(dB)
V (ms) (dB)
i IF
Fig.9 Typical signal-to-noise ratio as a function
of IF input voltage (dB). Fig.10 Typical signal-to-noise ratio as a function
of IF input voltage (mV).
handbook, halfpage
60
70
20
10
30
50
60
0
0.06 0.6 6 10 600
MBE443
40
S/N
(dB)
V (ms) (mV)
i IF
Fig.11 Input signal conditions.
handbook, halfpage
SC CC PC SC CC PC
BLUE YELLOW
27 dB
13.2 dB
3.2 dB
27 dB
13.2 dB 10 dB
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).
1995 Mar 21 23
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
Fig.12 Measurement conditions and typical AFC characteristic.
handbook, full pagewidth
V = 5 V
P
V
P
200
100
0
200
100
(µA)
38.5
38.9
39.3
f (MHz)
(source current)
(sink current)
V
23
I23
(V)
4.5
3.5
2.5
1.5
0.5
TDA9812
23 I23 22 kΩ
22 kΩ
MBE445
Fig.13 Typical video signal levels on output composite video (sound carrier OFF).
h
andbook, full pagewidth
1.5 V
1.8 V
2.6 V
2.5 V zero carrier level
white level
black level
sync level
standard B/G
1.5 V
1.8 V
1.95 V
1.65 V
1.47 V
2.5 V
zero carrier level
white level
black level
threshold level
threshold level
sync level
standard L
MBE446
1995 Mar 21 24
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
Fig.14 Typical audio sound-to-noise ratio as a function of input signal at AM standard.
handbook, full pagewidth
100
10
10
50
60
40
20
0
7030 50 60 7040 80 90
MBE447
30
CCIR-468
(dB)
input voltage (dBµV)
signal
noise
Fig.15 Typical total harmonic distortion as a function of input signal at AM standard.
handbook, full pagewidth
0
1.25
102
MBE448
10110 2
0.25
0.5
0.75
1.0
10 1
THD
(%)
f (kHz)
1995 Mar 21 25
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
Fig.16 Ripple rejection condition.
handbook, full pagewidth
TDA9812
VP = 5 V
t
VP = 5 V
100 mV
ripple
(f = 70 kHz)
MBE449
1995 Mar 21 26
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
INTERNAL CIRCUITRY
handbook, full pagewidth
MBE451
151413
650 Ω
300 µA
4.2 kΩ
10 pF
12
120 Ω
4.2
kΩ
25
pF
2.3 mA
11
4.2 kΩ
9
kΩ
3.6 V
10
2.5
mA
9
13
kΩ
3.6 V
16 kΩ
24
kΩ
87
23 µA
VCO
67 µA
6
9 kΩ
20 kΩ
3.6 V
25 µA
3 4 5
n.c. n.c.
1 mA
25 µA
2
1
0.6
µA
1.1
kΩ
1.1
kΩ
3.6 V
1.1
kΩ
1.1
kΩ
3.6 V
32
31 1 mA
650
Ω
20
kΩ
20
kΩ
70 kΩ
420
Ω420
Ω
2.8 V
10 kΩ10 kΩ
25 24
1
kΩ1
kΩ
200 µA
23 22
3.3
kΩ2.2
kΩ
2
kΩ
21
2.0 mA
1.7 pF
1.7
pF
9 kΩ
20
1.9 mA
0.5 pF
1.6 kΩ
10 kΩ
2627282930
n.c.
VPGND
TDA9812
2.5 mA
19
18
640 Ω
40 kΩ
10 pF
40 kΩ
3.9
kΩ19
3.6 V
3.6 V 10 kΩ
n.c.
16
n.c.
Fig.17 Internal circuitry.
1995 Mar 21 27
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
APPLICATION INFORMATION
Fig.18 Application circuit (SO28 pinning in parenthesis).
handbook, full pagewidth
8.2 pF
2.2
µFCref
GND
2.2
µF
VIF
AGC
22
kΩ
100
nF
10
nF
22 kΩAFC
VP
video
output
intercarrier
output
330
Ω
n.c.
tuner
AGC
10
nF
5.5 MHz
560 Ω5.6
kΩ
FM
mute switch
50
Ω
IF
input
32
(28)
(1)
1
TDA9812
CBL
100
nF
n.c.
n.c. n.c. TOP
22
kΩ
390
Ω
loop
filter
220
nF
SIF
AGC
2.2
µF22
kΩ
5 V
standard
switch CVBS
22
kΩ
L/L
adjustment
AF output
5.6
kΩ
10 nF
R
22
µF
n.c.
CDEC
x
(2)
31
(27)
(2)
2
30
(3)
3
29
(26)
4
28
(25)
5
27
(24)
(4)
6
26
(23)
(5)
7
25
(22)
(6)
8
24
(21)
(7)
9
23
(20)
(8)
10
22
(19)
(9)
11
21
(18)
(10)
12
20
(17)
(11)
13
19
(16)
(12)
14
18
(13)
15
17
(15)
(14)
16
15
µH
(1)
SWIF
K9350
(1)
SWIF
G1962
(3)
MBE450
(1) Depends on standard.
(2) See note 19 in Chapter.“Characteristics”.
(3) Only required for external AGC mode.
1995 Mar 21 28
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
PACKAGE OUTLINES
UNIT b1cEe M
H
L
REFERENCES
OUTLINE
VERSION EUROPEAN
PROJECTION ISSUE DATE
IEC JEDEC EIAJ
mm
DIMENSIONS (mm are the original dimensions)
SOT232-1 92-11-17
95-02-04
bmax.
w
ME
e1
1.3
0.8 0.53
0.40 0.32
0.23 29.4
28.5 9.1
8.7 3.2
2.8 0.181.778 10.16 10.7
10.2 12.2
10.5 1.6
4.7 0.51 3.8
MH
c(e )
1
ME
A
L
seating plane
A1
wM
b1
e
D
A2
Z
32
1
17
16
b
E
pin 1 index
0 5 10 mm
scale
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
(1) (1)
D(1)
Z
A
max. 12
A
min. A
max.
SDIP32: plastic shrink dual in-line package; 32 leads (400 mil) SOT232-1
1995 Mar 21 29
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
UNIT A
max. A1A2A3bpcD
(1) E(1) (1)
eH
ELL
pQZ
ywv θ
REFERENCES
OUTLINE
VERSION EUROPEAN
PROJECTION ISSUE DATE
IEC JEDEC EIAJ
mm
inches
2.65 0.30
0.10 2.45
2.25 0.49
0.36 0.32
0.23 18.1
17.7 7.6
7.4 1.27 10.65
10.00 1.1
1.0 0.9
0.4 8
0
o
o
0.25 0.1
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
Note
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.
1.1
0.4
SOT136-1 91-08-13
95-01-24
X
14
28
wM
θ
A
A1
A2
bp
D
HE
Lp
Q
detail X
E
Z
c
L
vMA
e
15
1
(A )
3
A
y
0.25
075E06 MS-013AE
pin 1 index
0.10 0.012
0.004 0.096
0.089 0.019
0.014 0.013
0.009 0.71
0.69 0.30
0.29 0.050
1.4
0.055
0.42
0.39 0.043
0.039 0.035
0.016
0.01
0.25
0.01 0.004
0.043
0.016
0.01
0 5 10 mm
scale
SO28: plastic small outline package; 28 leads; body width 7.5 mm SOT136-1
1995 Mar 21 30
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
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.
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.
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.
Plastic small outline packages
BYWAVE
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.
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.
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.
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.
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.
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)
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.)
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.
1995 Mar 21 31
Philips Semiconductors Preliminary specification
Multistandard VIF-PLL and
FM-PLL/AM demodulator TDA9812
DEFINITIONS
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.
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.
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SCD39 © Philips Electronics N.V. 1995
All rights are reserved. Reproduction in whole or in part is prohibited without the
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Philips Semiconductors
Printed in The Netherlands
533061/50/01/pp32 Date of release: 1995 Mar 21
Document order number: 9397 750 00108
