TDA8295 Datasheet, PDF (56/77 Pages) NXP Semiconductors – Digital global standard low IF demodulator for analog TV and FM radio

NXP Semiconductors
TDA8295
Digital global standard low IF demodulator for analog TV and FM radio
Table 68. 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; residual picture carrier for L = 3 %,
all others 10 %; FM/AM modulation = 54 %, 1 kHz modulation frequency; measured in application PCB (see Figure 12) with
16 MHz crystal frequency, loaded with 75 Ω (CVBS) and 1 kΩ (SSIF/audio). Values are meant for ‘easy programming’
settings (recommended) except internal mono audio and IF demodulation. The low IF spectrum is delivered by a professional
downconverter.
Symbol
Parameter
Conditions
Min
Typ
Max Unit
α_IM(yellow)
intermodulation suppression carrier levels related to PC
(yellow)
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)
69
- dB
3.3 MHz (related to CC)
-
81
- dB
(S/N)_w
weighted signal-to-noise all standards; unified
58
ratio
weighting filter (“ITU-T J.61”);
PC at −6 dBFS
62
- dB
TDA8295_1
Product data sheet
Rev. 01 — 4 February 2008
© NXP B.V. 2008. All rights reserved.
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