M52723ASP
Dynamic Focus
REJ03F0191-0201
Rev.2.01
Mar 31, 2008
Description
The M52723ASP is semiconductor integrated circuit for Multi-Sync display monitors.
It generates horizontal and vertical parabola waves, and it can revise focus of CRT monitors.
Features
•
It can control phase of horizontal wave.
•
It contains the horizontal saw wave generator and Auto Gain Control circuit, so that it is able to keep the amplitude
constant if frequency change.
•
It change the parabola wave inretrace period to constant voltage in order to reduce load at the amplitude after IC.
Application
CRT display monitor
Recommended Operating Condition
Supply voltage range:
Rated supply voltage:
11.5 to 12.5 V
12 V
Block Diagram
V
HS
INPUT
19
H-PULSE
H-DELAY
INPUT
CAPACITOR
17
16
V
PH
INPUT
15
V
REF
OUTPUT
14
AGC
TRACE
V
REF
RESISTOR CAPACITOR
13
12
AGC
RETRACE
CAPACITOR
11
V-V
CC
20
H-GND
18
H-Pulse
Delay
Vref
AGC DET
Para.Amp
Buffer
X
2
SW
X
2
Para.Amp &
Limiter
Buffer
H-SAW
Generator
1
V-GND
2
V-SAW
INPUT
3
V
REF
INPUT
4
V-PARA
OUTPUT
5
V
GV
INPUT
6
V
GH
INPUT
7
8
9
H-SAW
TRACE
10
H-V
CC
H-PARA
H-SAW
OUTPUT RETRACE
REJ03F0191-0201 Rev.2.01 Mar 31, 2008
Page 1 of 22
RENESAS [ RENESAS TECHNOLOGY CORP ]
