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TDA8295_09 Datasheet, PDF (64/83 Pages) NXP Semiconductors – Digital global standard low IF demodulator for analog TV and FM radio | |||
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NXP Semiconductors
TDA8295
Digital global standard low IF demodulator for analog TV and FM radio
Table 72. Characteristics â¦continued
Power supplies 3.3 V, 1.2 V; Tamb = 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 15) with
16 MHz crystal frequency, loaded with 75 Ω (CVBS) and 1 kΩ (SSIF/audio). Values are meant for âeasy programmingâ
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
SSIF/mono sound output
fo(SSIF)
SSIF output frequency
SC1 or FM radio carrier
M standard
[10]
-
4.5
- MHz
B/G/H standard
-
5.5
- MHz
I standard
-
6.0
- MHz
D/K/L/L-accent standard
-
6.5
- MHz
FM radio
-
5.5
- MHz
Vo(SSIF)(RMS) RMS SSIF output voltage
1 kΩ DC or AC load;
no modulation;
PC / SC1 = 13 dB; scaled
linearly for all other ratios
all standards except B/G/H
30
35
40 mV
B/G/H standard
27
32
37 mV
FM radio (single carrier)
460
530
610 mV
Vo(AF)(RMS) RMS AF output voltage
1 kΩ DC or AC load
M standard; 54 %
125
modulation degree
(±13.5 kHz FM deviation
before pre-emphasis)
143
165 mV
B, G/H, I, D, K standard;
125
54 % modulation degree
(±27 kHz FM deviation
before pre-emphasis)
143
165 mV
L/L-accent standard; AM;
110
m = 54 %
126
145 mV
FM radio; 30 % modulation
56
degree (±22.5 kHz FM
deviation before
pre-emphasis)
65
75 mV
high Deviation mode
487
(D/K standard China);
FM deviation before
pre-emphasis ±400 kHz;
sound level setting: â12 dB
560
644 mV
TDA8295_C2_2
Product data sheet
Rev. 02 â 27 November 2009
© NXP B.V. 2009. All rights reserved.
64 of 83
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