tda8295 NXP Semiconductors, tda8295 Datasheet - Page 4

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

NXP Semiconductors
Table 1.
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
CVBS output
V
B
G
(S/N)
SSIF/mono sound output
V
V
THD
resp(f)
dif
hr(AF)
o(p-p)
video( 3dB)
o(SSIF)(RMS)
o(AF)(RMS)
dif
w
Quick reference data
Parameter
peak-to-peak output
voltage
frequency response
differential gain
differential phase
weighted signal-to-noise
ratio
RMS SSIF output voltage
RMS AF output voltage
AF headroom
total harmonic distortion
3 dB video bandwidth
amb
= 25 C; PC / SC1 for L and M = 10 dB, all others 13 dB; residual picture carrier for L = 3 %,
…continued
Digital global standard low IF demodulator for analog TV and FM radio
Conditions
negative PC modulation (all standards
except L/L-accent); 75
sync-white modulation
positive PC modulation (L/L-accent
standard); 75
modulation
overall video response; CVBS
equalizer flat
video equalizer; 8 equally spaced
settings; value at 3.9 MHz
“ITU-T J.63 line 330”
“ITU-T J.63 line 330”
all standards; unified weighting filter
( “ITU-T J.61” ); PC at 6 dBFS
1 k DC or AC load; no modulation;
PC / SC1 = 13 dB; scaled linearly for
all other ratios
1 k DC or AC load
before clipping; 1 k DC or AC load
FM; for 50 kHz deviation before
pre-emphasis (25 kHz for M standard)
AM; m = 80 %
(CVBS) and 1 k (SSIF/audio). Values are meant for ‘easy programming’
90 % (nominal)
97 % (nominal)
all standards except M/N
M/N standard
all standards except B/G/H
B/G/H standard
FM radio (single carrier)
M standard; 54 % modulation
degree ( 13.5 kHz FM deviation
before pre-emphasis)
B, G/H, I, D, K standard; 54 %
modulation degree ( 27 kHz
FM deviation before pre-emphasis)
M standard; related to 25 kHz
peak deviation before pre-emphasis
B, G/H, I, D, K standard; related to
pre-emphasis
50 kHz peak deviation before
Rev. 01 — 4 February 2008
DC load; sync-white
DC load;
Min
0.8
0.8
4.8
3.9
-
-
58
30
27
460
125
125
7
7
-
-
5
Typ
1.0
1.0
4.85
4.05
-
1.5
1.5
62
35
32
530
143
143
7
7
0.1
0.6
TDA8295
© NXP B.V. 2008. All rights reserved.
Max
1.2
1.2
-
-
+4.5
3
3
-
40
37
610
165
165
7
7
0.2
1
Figure
12) with
Unit
V
V
MHz
MHz
dB
%
deg
dB
mV
mV
mV
mV
mV
dB
dB
%
%
4 of 77