SAA7109 PHILIPS [NXP Semiconductors], SAA7109 Datasheet - Page 45

• Manufacturer Part Number: SAA7109
• Description: PC-CODEC
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
9
9.1
9.1.1
The SAA7108E; SAA7109E offers six analog signal inputs, two analog main channels with source switch, clamp circuit,
analog amplifier, anti-alias filter and video 9-bit CMOS ADC; see Fig.14.
9.1.2
The anti-alias filters are adapted to the line-locked clock frequency via a filter control circuit. The characteristics are
illustrated in Fig.11. During the vertical blanking period, gain and clamping control is frozen.
2004 Mar 16
PC-CODEC
FUNCTIONAL DESCRIPTION OF DIGITAL VIDEO DECODER PART
(dB)
Decoder
V
A
A
12
18
24
30
36
42
6
0
6
NALOG INPUT PROCESSING
NALOG CONTROL CIRCUITS
0
2
4
Fig.11 Anti-alias filter.
6
45
8
SAA7108E; SAA7109E
10
12
Product specification
f (MHz)
MGD138
14