tda8295 NXP Semiconductors, tda8295 Datasheet - Page 53

• 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
IF input
V
R
C
V
f
IF selectivity
Carrier recovery FPLL
B
m
f
IF demodulation (video equalizer in Flat mode)
B
i
step(AFC)
sup(stpb)
f
sup(stpb)
i(p-p)
i
T(tot)
i(dif)
i(dif)
over(PC)
pullin
3dB(cl)
Characteristics
Parameter
peak-to-peak input voltage
differential input resistance
differential input capacitance
input voltage
input frequency
stop-band suppression
closed-loop 3 dB
bandwidth
pull-in frequency range
picture carrier
overmodulation index
AFC step frequency
total transition bandwidth
stop-band suppression
…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
for full-scale ADC input
(0 dBFS)
operational input related to
ADC full scale; all standards;
sum of all signals
PC / SC1
FM radio
Hilbert filter stop-band
decimation filter stop-band
notch for NSC (NPC for
L-accent standard)
ultrawide
superwide
wide
medium
narrow
black for L/L-accent standard;
flat field white else
128 steps
Nyquist filter; all standards
Nyquist filter; all standards
video low-pass filter (M/N,
B/G/H, I, D/K, L/L-accent
standard)
M/N standard
B standard
G/H standard
I standard
DK and L standard
L-accent standard
Rev. 01 — 4 February 2008
[4]
[5]
[5]
Min
1.8
10
-
-
-
-
-
-
-
-
280
130
60
30
15
115
13
1
-
3
60
40
40
830
60
Typ
2.0
15
2
5.75 / 1.25 -
6.75 / 1.25 -
7.75 / 2.25 -
7.75 / 1.75 -
7.75 / 1.25 -
1.25 / 7.75 -
1.25
-
-
-
280
130
60
30
15
117
-
1
-
3
830
60
TDA8295
© NXP B.V. 2008. All rights reserved.
Figure
Max Unit
2.2
-
3
-
-
-
-
280
130
60
30
15
-
-
1
-
-
3
830 kHz
12) with
V
k
pF
dBFS
MHz
MHz
MHz
MHz
MHz
MHz
MHz
dB
dB
dB
kHz
kHz
kHz
kHz
kHz
%
kHz
MHz
dB
dB
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