saa7114 NXP Semiconductors, saa7114 Datasheet - Page 14

• Manufacturer Part Number: saa7114
• Description: Pal/ntsc/secam Video Decoder With Adaptive Pal/ntsc Combfilter, Vbi-data Slicer And High Performance Scaler
• Manufacturer: NXP Semiconductors

Philips Semiconductors
8. Functional description
SAA7114_3
Product data sheet
8.1.1 Analog input processing
8.1.2 Analog control circuits
8.1 Decoder
The SAA7114 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
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
Figure
(dB)
V
12
18
24
30
36
42
6
0
6
5.
0
2
Rev. 03 — 17 January 2006
4
Figure
6
4. During the vertical blanking period gain
8
PAL/NTSC/SECAM video decoder
10
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
12
SAA7114
f (MHz)
mgd138
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