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TDA8295_09 Datasheet, PDF (61/83 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
CVBS output
Vo(p-p)
peak-to-peak output voltage
negative PC modulation (all
standards except L/L-accent);
75 Ω DC load; sync-white
modulation
65 %
-
0.7
0.9 V
90 % (nominal)
0.8
1.0
1.2 V
115 %
-
1.0
1.2 V
positive PC modulation
(L/L-accent standard);
75 Ω DC load; sync-white
modulation
65 %
-
0.7
0.9 V
97 % (nominal)
0.8
1.0
1.2 V
115 %
-
1.0
1.2 V
band limited white noise
1.2
0 Hz to 6 MHz; 1 V RMS;
VID_LVL = 0
1.5
1.8 V
Bvideo(â3dB) â3 dB video bandwidth
overall video response; CVBS
equalizer flat
all standards except M/N
4.8
4.85
- MHz
M/N standard
3.9
4.05
- MHz
αresp(f)
frequency response
video equalizer; 8 equally
â5
spaced settings; value at
3.9 MHz
-
+4.5 dB
Gdif
differential gain
Ïdif
differential phase
Vstlt/VCVBS(p-p) synchronization tilt voltage
to peak-to-peak CVBS
voltage ratio
âITU-T J.63 line 330â
âITU-T J.63 line 330â
-
1.5
3%
-
1.5
3 deg
-
1
2%
Vftlt/VCVBS(p-p) frame tilt voltage to
all standards except
-
peak-to-peak CVBS voltage L/L-accent
ratio
L/L-accent standard in peak
-
white AGC detection
1
3%
1
5%
ÎVtro/Vtro
relative transient response 2T pulse
overshoot voltage variation
[8] -
2
5%
TDA8295_C2_2
Product data sheet
Rev. 02 â 27 November 2009
© NXP B.V. 2009. All rights reserved.
61 of 83
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