M52743BSP 데이터 시트보기 (PDF) - Renesas Electronics
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M52743BSP Datasheet PDF : 26 Pages
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M52743BSP
Application Method for M52743BSP
Clamp Pulse Input
Clamp pulse width is recommended
above 15 kHz, 1.0 µs
above 30 kHz, 0.5 µs
above 64 kHz, 0.3 µs.
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 Figure shown right is recommended.
19
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 feed
backed from Power AMP is 1 V, when the bottom of output signal is 1 V.
Pre Amp
input R
Main brightness
DC: 1 to 5 V
R output
Black level 1 to 5 V
Power Amp
Power Amp out
R Feed back
R1
Black level 1 to 5 V
R2
EXT-Feed Back Application Circuit
Notice of Application
• Make the nearest distance between output pin and pull down resister.
• Recommended pedestal voltage of IC output signal is 2 V.
REJ03F0193-0201 Rev.2.01 Mar 31, 2008
Page 24 of 25
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