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M52742ASP Datasheet(PDF) 21 Page - Mitsubishi Electric Semiconductor

Part # M52742ASP
Description  BUS CONTROLLED 3-CHANNEL VIDEO PREAMP FOR CRT DISPLAY MONITOR
PDF  21 Pages
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Manufacturer  MITSUBISHI [Mitsubishi Electric Semiconductor]
Direct Link  http://www.mitsubishichips.com
Logo MITSUBISHI - Mitsubishi Electric Semiconductor

M52742ASP Datasheet(HTML) 21 Page - Mitsubishi Electric Semiconductor

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MITSUBISHI ICs (Monitor)
M52742ASP
BUS CONTROLLED 3-CHANNEL VIDEO PREAMP FOR CRT DISPLAY MONITOR
21
DESCRIPTION OF PIN (cont.)
Pin No.
Name
DC voltage (V )
Peripheral circuit of pins
Description of function
30
Main
Brightness
-
•It is recommended that
the IC be used between
pedestal voltage 2V and
3V.
30
35k
APPLICATION METHOD FOR M52742SP
CLAMP PULSE INPUT
Clamp pulse width is recommended
above 15kHz, 1.0µsec
above 30kHz, 0.5µsec
above 64kHz, 0.3µsec.
The clamp pulse circuit in ordinary set is a long round about way,
and beside high voltage, sometimes connected to external terminal,
it is very easy affected by large surge.
Therefore, the Fig. shown right is recommended.
EXT-FEED BACK
In case of application circuit example of lower figure, Set up R1, R2
which seems that the black level of the signal feedbacked from
Power AMP is 1V, when the bottom of output signal is 1V.
NOTICE OF APPLICATION
•Make the nearest distance between output pin and pull down
resistor.
•Recommended pedestal voltage of IC output signal is 2V.
19
Power Amp OUT
Pre Amp
INPUT R
MAIN BRIGHTNESS
DC:1 to 5V
R OUT PUT
Black level 1 to 5V
R Feed back
Black level 1 to 5V
R1
R2
Power Amp
EXT-FEED BACK APPLICATION CIRCUIT
PRELIMINARY
Notice:This
is not
a final
specification.
Some parametric
limits are
subject
to change.



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