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TDA8708B Datasheet, PDF (18/24 Pages) NXP Semiconductors – Video analog input interface | |||
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Philips Semiconductors
Video analog input interface
Product speciï¬cation
TDA8708B
handbook, full pagewidth
ADOUT
(pin 19)
Vi
680 â¦
82 µH
15 pF
VCCA
(pin 22)
2.2 kâ¦
15 pF
MSA678
ADCIN
(pin 20)
Vo
This filter can be adapted to various applications with respect to performance requirements. An input and output impedance of at least 680 ⦠and 2.2 kâ¦
must in any event be applied.
Fig.15 Example of an economical low-pass filter for CVBS and Y signals.
0
handbook, halfpage
α
(dB)
10
MSA681
Characteristics of Fig.16:
⢠Order 5; adapted CHEBYSHEV
⢠Ripple Ï â¤ 0.4 dB
⢠f = 6.5 MHz at â3 dB.
20
30
40
0
10
20
30
f (MHz)
Fig.16 Frequency response for filter shown in
Fig.15.
1996 Nov 26
18
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