2004 Jun 29
2
Philips Semiconductors
Product specification
Single/multistandard VIF/SIF-PLL and
FM-PLL/AM demodulators
TDA9817; TDA9818
FEATURES
5 V supply voltage
Applicable for Intermediate Frequencies (IFs) of
38.9, 45.75 and 58.75 MHz
Gain controlled wide band Video IF (VIF) amplifier
(AC-coupled)
True synchronous demodulation with active carrier
regeneration (very linear demodulation, good
intermodulation figures, reduced harmonics and
excellent pulse response)
Robustness for over-modulation better than 105% due
to gated phase detector at L/L accent standard and
PLL-bandwidth control at negative modulated standards
Voltage Controlled Oscillator (VCO) frequency
switchable between L and L accent (alignment external)
picture carrier frequency
VIF Automatic Gain Control (AGC) detector for gain
control, operating as peak sync detector for B/G, peak
white detector for L; signal controlled reaction time for L
Tuner AGC with adjustable TakeOver Point (TOP)
Automatic Frequency Control (AFC) detector without
extra reference circuit
AC-coupled limiter amplifier for sound intercarrier signal
Alignment-free FM Phase-Locked Loop (PLL)
demodulator with high linearity
Sound IF (SIF) input for single reference Quasi Split
Sound (QSS) mode (PLL controlled); SIF AGC detector
for gain controlled SIF amplifier; single reference QSS
mixer able to operate in high performance single
reference QSS mode and in intercarrier mode
AM demodulator without extra reference circuit
Stabilizer circuit for ripple rejection and to achieve
constant output signals
ElectroStatic Discharge (ESD) protection for all pins.
GENERAL DESCRIPTION
The TDA9817 is an integrated circuit for single standard
vision IF signal processing and FM demodulation.
The TDA9818 is an integrated circuit for multistandard
vision IF signal processing, sound AM and FM
demodulation.
ORDERING INFORMATION
TYPE NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA9817T
SO24
plastic small outline package; 24 leads; body width 7.5 mm
SOT137-1
TDA9817TS
SSOP24
plastic shrink small outline package; 24 leads; body width 5.3 mm
SOT340-1
TDA9818
SDIP24
plastic shrink dual in-line package; 24 leads (400 mil)
SOT234-1
TDA9818T
SO24
plastic small outline package; 24 leads; body width 7.5 mm
SOT137-1
TDA9818TS
SSOP24
plastic shrink small outline package; 24 leads; body width 5.3 mm
SOT340-1
2004 Jun 29
3
Philips Semiconductors
Product specification
Single/multistandard VIF/SIF-PLL and
FM-PLL/AM demodulators
TDA9817; TDA9818
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
P
supply voltage
4.5
5
5.5
V
I
P
supply current
76
90
104
mA
V
i(VIF)(rms)
vision IF input signal voltage sensitivity
(RMS value)
-
1 dB video at output
-
60
100
V
V
o(CVBS)(p-p)
video output signal voltage
(peak-to-peak value)
0.97
1.1
1.23
V
B
v(
-
3dB)
-
3 dB video bandwidth on pin CVBS
B/G and L standard;
C
L
< 50 pF; R
L
> 1 k
; AC load
7
8
-
MHz
S/N
W
weighted signal-to-noise ratio for video
56
60
-
dB
IM(1.1)
intermodulation attenuation at `blue'
f = 1.1 MHz
58
64
-
dB
IM(3.3)
intermodulation attenuation at `blue'
f = 3.3 MHz
58
64
-
dB
H(sup)
suppression of video signal harmonics
35
40
-
dB
V
i(SIF)(rms)
sound IF input signal voltage
sensitivity (RMS value)
-
3 dB at intercarrier output
-
50
100
V
V
o(FM)(rms)
audio output signal voltage for FM
(RMS value)
B/G standard; 27 kHz,
54% modulation
0.4
0.5
0.6
V
M/N standard;
25 kHz modulation
0.36
0.45
0.54
V
V
o(AM)(rms)
audio output signal voltage for AM
(RMS value)
L standard; 54% modulation
0.4
0.5
0.6
V
THD
audio
total harmonic distortion audio signal
54% modulation
FM
-
0.2
0.5
%
AM
-
0.5
1.0
%
S/N
W(audio)
weighted signal-to-noise ratio audio
signal
54% modulation
FM
55
60
-
dB
AM
47
53
-
dB
2004
Jun
29
4
Philips Semiconductors
Product specification
Single/m
ultistandard VIF/SIF-PLL and
FM-PLL/AM demodulators
TD
A9817; TD
A9818
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BLOCK DIA
GRAM
handbook, full pagewidth
QSS MIXER
INTERCARRIER MIXER
AM DEMODULATOR
SIF AMPLIFIER
SIF
AGC
intercarrier
mode
INTERCARRIER
MODE SWITCH
FM-PLL
DEMODULATOR
9
mute
switch
standards
selection
switch
CSAGC
Cde-em
Vde-em
CDEC
13
FMin
QSS
STD
12
3
(1)
5
10
11
audio
video
CVBS
1 V (p-p)
1.1 V (p-p)
8
16
20
21
17
18
19
7
(1)
6
15
(1)
4
22
AFC
AF
2
fpc
L/L accent switch
and adjust
TPLL
CVAGC
CBL
TOP
LADJ VCO2
VCO1
VP
GND
VIF AMPLIFIER
FPLL
VIF
SAW
SIF
SAW
24
23
2
1
14
VCO
TWD
5.5 MHz
VIDEO
DEMODULATOR
AND AMPLIFIER
SOUND
TRAP
AFC
DETECTOR
VOLTAGE
REFERENCE
TUNER
AGC
TAGC
VIF1
VIF2
SIF1
SIF2
VIF
AGC
TDA9817
TDA9818
MHA663
Fig.1 Block diagram.
(1) Not connected for TDA9817T and TDA9817TS.
2004 Jun 29
5
Philips Semiconductors
Product specification
Single/multistandard VIF/SIF-PLL and
FM-PLL/AM demodulators
TDA9817; TDA9818
PINNING
Note
1. Not connected for TDA9817T and TDA9817TS.
SYMBOL
PIN
DESCRIPTION
VIF1
1
VIF differential input signal voltage 1
VIF2
2
VIF differential input signal voltage 2
STD
3
standards selection switch; note 1
C
VAGC
4
VIF AGC capacitor
C
SAGC
5
SIF AGC capacitor
T
PLL
6
PLL filter
LADJ
7
L/L accent switch and adjust; note 1
AF
8
audio output
V
de-em
9
de-emphasis output
C
de-em
10
de-emphasis input
C
DEC
11
decoupling capacitor
QSS
12
single reference QSS/intercarrier
output voltage
FM
in
13
sound intercarrier input voltage
TAGC
14
tuner AGC output
C
BL
15
black level detector; note 1
CVBS
16
composite video output voltage
AFC
17
AFC output
VCO1
18
VCO1 resonance circuit
VCO2
19
VCO2 resonance circuit
GND
20
ground
V
P
21
supply voltage
TOP
22
tuner AGC takeover point adjust
SIF1
23
SIF differential input signal voltage 1
SIF2
24
SIF differential input signal voltage 2
TDA9818
VIF1
SIF2
VIF2
SIF1
STD
TOP
C
VAGC
V
P
C
SAGC
GND
T
PLL
VCO2
LADJ
VCO1
AF
AFC
V
de-em
CVBS
C
de-em
C
BL
C
DEC
TAGC
QSS
FM
in
mha664
1
2
3
4
5
6
7
8
9
10
11
12
14
13
16
15
18
17
20
19
22
21
24
23
Fig.2 Pin configuration SDIP24.
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