an3497sb Panasonic Corporation of North America, an3497sb Datasheet
an3497sb
Manufacturer Part Number
an3497sb
Description
Chroma Noise Reduction Ic
Manufacturer
Panasonic Corporation of North America
Datasheet
1.AN3497SB.pdf
(1 pages)
ICs for VCR
AN3497SB
Chroma Noise Reduction IC
for VCR and uses a chroma recursive filter system. In
combination with the AN2260 (luminance signal process-
ing), AN2460 (chroma signal processing), etc., it config-
ures a VHS signal processing system.
Capable of meeting with the NTSC/PAL system.
Capable of meeting with the EDIT mode and THRU
mode.
The CNR limiter level and CNR output level can be adjust-
ed depending on external DC.
The feedback constant (KC) can be set optionally depend-
ing on an external resistor.
The chroma signal can be adjusted depending on an
external resistor.
Built-in functions such as Y vertical correlative signal
detector, etc.
The AN3497SB is a chroma noise reduction (CNR) IC
Overview
Features
Block Diagram
B
8.1dB
2
V
16
CC
1
–13.2dB
–2.1dB
CEQ
GND
15
2
14
3
–2.1dB
EF
GCA
13
–20.8dB
4
0dB
B1
–13.2dB
A1
12
5
A2
20dB
33k
0.5
CTL
20dB
11
6
1
8
16-Pin PANAFLAT Package (SSOP-016-P-0225a)
22k
6.3 0.3
4.3 0.3
COR
Lim.
LPF
10
7
16
9
Det.
9
8
SW
Unit : mm
1
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