tda8295 NXP Semiconductors, tda8295 Datasheet - Page 54

• 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
t
Digital IF AGC (internal loop)
B
t
Tuner IF AGC (external loop)
t
f
ripple(GDE)
resp
resp
G
video( 1dB)
3dB(lpf)
3dB(cl)
AGC
Characteristics
Parameter
group delay equalizer ripple
time
closed-loop 3 dB
bandwidth
response time
AGC gain range
response time
low-pass filter 3 dB
frequency
1 dB video 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
M/N standard
B/G/H, I, D/K, L/L-accent
standard
peak value for B/G/H half,
D/K half, I flat, M (FCC) full,
L/L-accent full standard
negative modulation (all
standards except L/L-accent)
positive modulation
(L/L-accent standard)
settled within 3 dB
at 60 dB V (RMS) PC input;
settled within 3 dB
IF AGC postfilter
20 dB level change; video
20 dB level change; video
negative modulation (all
standards except
L/L-accent)
positive modulation
(L/L-accent standard)
with TDA8275A;
positive modulation
with TDA8275A;
negative modulation
with TDA1827x;
positive modulation
with TDA1827x;
negative modulation
Rev. 01 — 4 February 2008
[6]
[7]
Min
-
-
-
400
0.2
3
100
-
-
-
-
0.9
20
Typ
3.9
4.9
20
-
-
3
100
-
4000
500
3000
600
1.0
TDA8295
© NXP B.V. 2008. All rights reserved.
Figure
Max Unit
-
-
40
-
-
3
100
+48
-
-
-
-
1.1
12) with
MHz
MHz
ns
Hz
Hz
ms
ms
dB
ms
ms
ms
ms
kHz
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