M52723ASP Datasheet, PDF (1/23 Pages) Mitsubishi Electric Semiconductor – DYNAMIC FOCUS

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: 11.5 to 12.5 V
Rated supply voltage: 12 V
Block Diagram
V-V_CC
20
V_HS
INPUT
19
H-GND
18
H-PULSE H-DELAY
V_PH
INPUT CAPACITOR INPUT
17
16
15
V_REF
OUTPUT
14
AGC
V_REF
TRACE
RESISTOR CAPACITOR
13
12
AGC
RETRACE
CAPACITOR
11
H-Pulse
Delay
Vref
AGC DET
Para.Amp
X²
Buffer
X²
SW
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
H-PARA H-SAW
OUTPUT RETRACE
9
H-SAW
TRACE
10
H-V_CC
REJ03F0191-0201 Rev.2.01 Mar 31, 2008
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