M52723ASP Datasheet, PDF (1/17 Pages) Mitsubishi Electric Semiconductor – DYNAMIC FOCUS

MITSUBISHI ICs (Monitor)
M52723ASP
DYNAMIC FOCUS
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 12.5V
Rated supply voltage...................................................................12V
PIN CONFIGURATION (TOP VIEW)
V-GND 1
V-SAW INPUT 2
VREF INPUT 3
V-PARA OUTPUT 4
VGV INPUT 5
VGH INPUT 6
H-PARA OUTPUT 7
H-SAW RETRACE 8
H-SAW TRACE 9
H-VCC 10
20 V-VCC
19 VHS INPUT
18 H-GND
17 H-PULSE INPUT
16 H-DELAY CAPACITOR
15 VPH INPUT
14 VREF OUTPUT
13 VREF RESISTOR
12 AGC TRACE CAPACITOR
11 AGC RETRACE CAPACITOR
Outline 20P4B
BLOCK DIAGRAM
V-VCC
20
VHS
INPUT
19
H-GND
18
H PULSE
INPUT
17
H-DELAY
CAPACITOR
16
VPH
INPUT
15
VREF
OUTPUT
14
AGC
AGC
VREF
TRACE RETRACE
RESISTOR CAPACITOR CAPACITOR
13
12
11
H-Pulse
Delay
Vref
AGC DET
Para.Amp
Buffer
X²
SW
X²
Para.Amp &
Limiter
Buffer
H-SAW
Generator
1
V-GND
2
V-SAW
INPUT
3
VREF
INPUT
4
V-PARA
OUTPUT
5
VGV
INPUT
6
VGH
INPUT
7
H-PARA
OUTPUT
8
H-SAW
RETRACE
9
H-SAW
TRACE
10
H-VCC
1