saf7118 NXP Semiconductors, saf7118 Datasheet - Page 16

• Manufacturer Part Number: saf7118
• Description: Multistandard Video Decoder With Adaptive Comb Filter And Component Video Input
• Manufacturer: NXP Semiconductors

Philips Semiconductors
8. Functional description
SAF7118_3
Product data sheet
8.1.1 Analog input processing
8.1 Decoder
The SAF7118 offers sixteen analog signal inputs, four analog main channels with source
switch, clamp circuit, analog amplifier, anti-alias filter and video 9-bit CMOS ADC with a
Decimation Filter (DF); see
The anti-alias filters are adapted to the line-locked clock frequency via a filter control
circuit. The characteristic is shown in
and clamping control are frozen.
Fig 4. Anti-alias filter
Fig 5. Decimation filter
(dB)
(dB)
G
V
12
18
24
30
36
42
48
12
18
24
30
36
42
6
0
6
6
0
6
0
0
2
2
Rev. 03 — 16 February 2006
Figure 5
4
4
Multistandard video decoder with adaptive comb filter
and
Figure
6
6
Figure
4. During the vertical blanking period gain
6.
8
8
10
10
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
12
12
f (MHz)
SAF7118
f (MHz)
mgd138
mbl753
14
14
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