AN7299S Datasheet, PDF (1/4 Pages) Panasonic Semiconductor – Antenna diversity IC for car TV

ICs for TV
AN7299S
Antenna diversity IC for car TV
s Overview
The AN7299S is an antenna diversity IC for car TV.
A noise detection circuit and an antenna changeover
circuit are integrated on one chip.
s Features
• Built-in vertical and horizontal synchronizing circuit
• Built-in antenna fixing function
• It outputs a composite synchronous signal
s Applications
• Car TVs
Unit : mm
1
24
2
23
3
22
4
21
5
20
6
19
7
18
8
17
9
16
10
15
11
14
12
13
0.3
7.2±0.3
9.4±0.3
SOP024-P-0375A
s Block Diagram
1st
noise
amp.
Video
clamp
2nd
noise
amp.
Noise
comparator
ANT
select
switch
ANT choice
ANT select control
Sync
separater
Sync
control
ANT switch control
V-sync
separater
Horizontal OSC
Vertical OSC
ANT switch driver
ANT select decoder
Phase
detector
1/5
divider
Charge
pump
VCO
1