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PDF M52723ASP Data sheet ( Hoja de datos )

Número de pieza M52723ASP
Descripción DYNAMIC FOCUS
Fabricantes Mitsubishi 
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No Preview Available ! M52723ASP Hoja de datos, Descripción, Manual

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

1 page




M52723ASP pdf
INPUT SIGNAL
PG
(Input signal to pin17)
VTH=2.5V
Pulse width 3µsec frequency 24 to 120kHz
SG
(Input signal to pin2)
frequency 50 to 185Hz
ELECTRICAL CHARACTERISTICS TEST METHOD
ICCH Circuit current1
Measure the input current to pin10.
ICCV Circuit current2
Measure the input current to pin20.
VREF Reference voltage output
Measure the output voltage at pin14.
DREF Reference voltage temperature drift
Measure temperature drift of pin14. (-20°C to 85°C)
VIL H-pulse low input range
Input horizontal pulse which low level is 2V in pin17 and confirm
output horizontal signal at pin7.
Input signal to pin17
Output signal at pin7
MITSUBISHI ICs (Monitor)
M52723ASP
DYNAMIC FOCUS
5.0V Typ
0V Typ
1.6V
1.6V
3.5V
5.0V
2.0V
5

5 Page





M52723ASP arduino
H GAIN CONTROL VOLTAGE
VS. H PARABORA AMPLITUDE
10
8.76VP-P (Limiting level)
5
Pin19=4.0V const.
0
01234
PIN6 H GAIN CONTROL VOLTAGE (V)
MITSUBISHI ICs (Monitor)
M52723ASP
DYNAMIC FOCUS
V PARA DC OUTPUT VOLTAGE RATIO
100
Pin3=3.5V const.
Pin5=4.0V const.
75
Output ratio=
Pin4out (Pin2=3.5V)-Pin4out
×100 (%)
50 Pin4out (Pin2=3.5V)-Pin4out (Pin2=1.9V)
25
0
1.9 2.7 3.5 4.3 5.1
PIN2 INPUT VOLTAGE (V)
V PARA AMP GAIN CONTROL
VOLTAGE VS. OUTPUT AMPLITUDE
7
6.56VP-P
6
Pin2 3.2VP-P sawtooth wave input
5
4
3
2
1
00 1 2 3 4 5
PIN5 V PARA AMP GAIN CONTROL VOLTAGE (V)
11

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