tda8295 NXP Semiconductors, tda8295 Datasheet - Page 59

• Manufacturer Part Number: tda8295
• Description: Tda8295 Digital Global Standard Low If Demodulator For Analog Tv And Fm Radio
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 68.
Power supplies 3.3 V, 1.2 V; T
all others 10 %; FM/AM modulation = 54 %, 1 kHz modulation frequency; measured in application PCB (see
16 MHz crystal frequency, loaded with 75
settings (recommended) except internal mono audio and IF demodulation. The low IF spectrum is delivered by a professional
downconverter.
TDA8295_1
Product data sheet
Symbol
B
THD
B
deemp
hr(AF)
AM
AF( 3dB)
3dB
Characteristics
Parameter
AF headroom
de-emphasis time constant
total harmonic distortion
AM suppression
3 dB bandwidth
3 dB AF bandwidth
…continued
amb
= 25 C; PC / SC1 for L and M = 10 dB, all others 13 dB; residual picture carrier for L = 3 %,
Digital global standard low IF demodulator for analog TV and FM radio
(CVBS) and 1 k (SSIF/audio). Values are meant for ‘easy programming’
Conditions
before clipping; 1 k DC or
AC load
M/N standard (mono);
FM radio USA
B/G/H, I, D/K standard;
FM radio Europe
audio low-pass filter
FM; for 50 kHz deviation
before pre-emphasis (25 kHz
for M standard)
AM; m = 80 %
AM
FM
of FM demodulator;
AM: f = 1 kHz; m = 54 %
referenced to 27 kHz FM
deviation
M standard; related to
before pre-emphasis
B, G/H, I, D, K standard;
related to 50 kHz peak
deviation before
pre-emphasis
L/L-accent standard;
PC / SC1 ratio for start of
audio output clipping; AM;
m = 100 %; related to mean
SC1
FM radio; 30 % modulation
degree related to 22.5 kHz
peak deviation before
pre-emphasis
L/L-accent standard
M-BTSC standard
Rev. 01 — 4 February 2008
25 kHz peak deviation
Min
7
7
1
7
75
50
30
140
-
-
20
40
40
Typ
7
7
1
7
75
50
30
140
0.1
0.6
27
50
46
TDA8295
© NXP B.V. 2008. All rights reserved.
Figure
Max Unit
7
7
1
7
75
50
30
140
0.2
1
-
-
-
12) with
dB
dB
dB
dB
kHz
kHz
%
%
kHz
kHz
dB
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