tda8708a NXP Semiconductors, tda8708a Datasheet - Page 18

• Manufacturer Part Number: tda8708a
• Description: Video Analog Input Interface
• Manufacturer: NXP Semiconductors

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Philips Semiconductors
June 1994
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Fig.16 Frequency response for filter shown in Fig.15.
Video analog input interface
This filter can be adapted to various applications with respect to performance requirements. An input and output impedance of at least 680
must in any event be applied.
(dB)
10
20
30
40
0
0
10
Fig.15 Example of an economical low-pass filter for CVBS and Y signals.
ADOUT
(pin 19)
20
f (MHz)
V i
MSA681
680
30
15 pF
(pin 22)
82 H
V CCA
18
Characteristics of Fig. 15
15 pF
Order 5; adapted CHEBYSHEV
Ripple
f = 6.5 MHz at
2.2 k
MSA678
0.4 dB
V o
3 dB.
(pin 20)
ADCIN
Product specification
TDA8708A
and 2.2 k