TDA8296 Datasheet, PDF (58/87 Pages) NXP Semiconductors – Digital global standard low IF demodulator for analog TV and FM radio

NXP Semiconductors
TDA8296
Digital global standard low IF demodulator for analog TV and FM radio
Table 64. Characteristics …continued
Power supplies 3.3 V, 1.2 V; T_amb = 25 °C; PC/SC1 for L and M = 10 dB, all others 13 dB; nominal residual picture carrier of
3 % for L/L’ , 10 % for M, 10 % for B/G, 12.5 % for D/K, 20 % for I; FM/AM modulation = 54 %, 1 kHz modulation frequency;
measured in application PCB (see Figure 22 and Figure 23) with 16 MHz crystal frequency, terminated with 75 Ω (CVBS) and
1 kΩ (SSIF/audio). Operation mode set via easy programming (Section 9.3.1), otherwise stated. Low IF input signal at -3dB
full scale, input frequencies as defined under row header IF input.
Symbol
Parameter
Conditions
Min
Typ
Max Unit
α_IM(blue)
intermodulation
suppression (blue)
carrier levels related to PC
sync; PC = −3.2 dB;
CC = −19.2 dB; SC = −13 dB
1.1 MHz (related to
-
black-to-white in RMS,
equals CC + 3.6 dB)
67
-
dB
3.3 MHz (related to CC)
-
77
-
dB
α_IM(yellow)
intermodulation
suppression (yellow)
carrier levels related to PC
sync; PC = −10 dB;
CC = −19.2 dB; SC = −13 dB
1.1 MHz (related to
-
black-to-white in RMS,
equals CC + 3.6 dB)
70
-
dB
3.3 MHz (related to CC)
-
78
-
dB
(S/N)_w
weighted signal-to-noise all standards; unified
57
ratio
weighting filter (“ITU-T J.61”);
PC at −6 dBFS
60
-
dB
PSRR
power supply rejection ratio f_ripple = 70 Hz; 100 mV (p-p);
video signal: gray; level: 50 %;
TDA8296 stand alone; input
positive video modulation;
-
L standard; 1.2 V
39
-
dB
positive video modulation; ^[8] -
L standard; 3.3 V
47
-
dB
negative video modulation;
-
B standard; 1.2 V
65
-
dB
negative video modulation; ^[8] -
B standard; 3.3 V
37
-
dB
α_sup(f)L(unw) unwanted leakage
4.8 MHz video modulation;
-
frequency suppression
related to black-to-white in
10 MHz to 200 MHz band,
wanted signal (peak-to-peak)
and unwanted signal (RMS)
56
-
dB
TDA8296
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 3 March 2011
© NXP B.V. 2011. All rights reserved.
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