Philips Semiconductors
Product specification
Single standard VIF-PLL with QSS-IF and
FM-PLL demodulator
TDA9808
CHARACTERISTICS (9 V SUPPLY, TDA9808; DIP20 only)
V
P
= 9 V; T
amb
= 25
°C;
see Table 1 for input frequencies and carrier ratios; input level V
i(VIF)(rms)
= 10 mV
(pins 1 and 2) (sync-level); V
i(SIF)(rms)
= 4.5 mV (pins 19 and 20) (sound carrier); IF input from 50
Ω
via broadband
transformer 1 : 1; video modulation DSB; residual carrier: 10%; video signal in accordance with
“NTC-7 Composite”;
measurements taken in Fig.13; unless otherwise specified.
SYMBOL
Supply (pin 18)
V
P
I
P
V
i(VIF)(rms)
supply voltage
supply current
note 1
4.5
72
PLL still locked;
−
maximum IF gain; note 3
5.0
85
9.9
98
V
mA
µV
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
True synchronous video demodulator;
note 2
VIF input signal voltage
sensitivity (RMS value)
60
90
Composite video amplifier (pin 9; sound carrier off)
V
o(video)(p-p)
S/N
W(video)
PSRR
video output signal voltage
(peak-to-peak value)
weighted signal-to-noise ratio
power supply ripple rejection
at pin 9
see Fig.8
see Fig.6 and note 4
see Fig.11
1.27
56
25
1.45
60
30
1.63
−
−
V
dB
dB
Tuner AGC (pin 12)
∆G
IF
IF slip by automatic gain
control
control steepness
∆I
13
/∆f
tuner gain current from
20 to 80%
−
6
8
dB
AFC circuit (pin 13);
see Fig.10 and note 5
S
note 6
f
pc
= 38.9 MHz
f
pc
= 45.75 MHz
f
pc
= 58.75 MHz
∆f
IF
/∆T
frequency variation by
temperature
I
AFC
= 0; note 7
0.35
0.35
0.35
−
0.55
0.55
0.55
−
0.75
0.75
0.75
µA/kHz
µA/kHz
µA/kHz
±20 ×
10
−6
K
−1
FM-PLL sound demodulator and AF output (pin 6);
note 8
V
o(AF)(6)(rms)
AF output signal voltage
(RMS value)
weighted signal-to-noise ratio
mute attenuation
DC jump voltage of AF output
terminal
FM-PLL in lock mode
±25
kHz
(50% FM deviation);
see Fig.13
375
500
625
mV
S/N
W(audio)
α
6
∆V
5
“CCIR 468-4”;
see Fig.13
55
70
−
60
75
±50
−
−
±175
dB
dB
mV
1999 Jun 04
9
PHILIPS [ NXP SEMICONDUCTORS ]
