tda9808t NXP Semiconductors, tda9808t Datasheet - Page 16

• Manufacturer Part Number: tda9808t
• Description: Single Standard Vif-pll With Qss-if And Fm-pll Demodulator
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Notes to the characteristics
1. Values of video and sound parameters are decreased at V
2. Level headroom for input level jumps during gain control setting.
3. This parameter is not tested during production and is only given as an application information for designing the
4. Loop bandwidth BL = 70 kHz (natural frequency f
5. Temperature coefficient of external LC-circuit is equal to zero.
6. V
7. V
8. The leakage current of the AGC capacitor should not exceed 100 nA at M, N standard. Larger currents will increase
9. S/N is the ratio of black-to-white amplitude to the black level noise voltage (RMS value, pin 9). B = 5 MHz weighted
10. The intermodulation figures are defined:
1999 Jun 04
THD
S/N
V
PSRR
Single reference QSS AF performance for FM operation (M standard); notes 19, 20 and 21; see Table 1
S/N
V
SC(rms)
6
Single standard VIF-PLL with QSS-IF and
FM-PLL demodulator
SYMBOL
6
television receiver.
gain control range). Resonance circuit of VCO: Q
2.7 V).
video modulation.
the tilt.
in accordance with “CCIR 567” .
W(audio)
W(audio)
i(IF)(rms)
i(VIF)
0.92
2.76
signal for nominal video signal.
=
=
20
20
= 10 mV; f = 1 MHz (VCO frequency offset related to picture carrier frequency); white picture
log
log
total harmonic distortion
weighted signal-to-noise ratio
for audio
residual sound carrier
(RMS value)
mute attenuation of AF signal
DC jump voltage of AF output
terminal for switching AF
output to mute state and vice
versa
power supply ripple rejection
at pin 6
weighted signal-to-noise ratio
for audio
V
---------------------------------------- -
V
V
---------------------------------------- -
V
o
o
o
o
at 3.58 MHz
at 0.92 MHz
at 3.58 MHz
at 2.76 MHz
PARAMETER
+
;
3.6 dB
2.76
value at 2.76 MHz referenced to colour carrier.
;
25 kHz
(50% FM deviation)
FM-PLL only; with
75 s de-emphasis;
25 kHz
(50% FM deviation);
“CCIR 468-4”
fundamental wave and
harmonics
FM-PLL in lock mode
R
see Figs 11 and 13
black picture
white picture
colour bar
0.92
x
= 0 ; f = 70 Hz;
n
0
value at 0.92 MHz referenced to black/white signal;
CONDITIONS
= 12 kHz; damping factor d
> 50; C
16
ext
P
= 4.5 V.
see Table 3; C
55
70
20
50
47
45
MIN.
int
8.5 pF (loop voltage approximately
3; calculated with sync level within
0.15
60
75
26
56
53
51
50
TYP.
0.5
75
150
Product specification
MAX.
TDA9808
%
dB
mV
dB
mV
dB
dB
dB
dB
UNIT