View m52745e datasheet:

MITSUBISHI ICs (Monitor) M52745SP BUS CONTROLLED 3-CHANNEL VIDEO PREAMP FOR CRT DISPLAY MONITOR DESCRIPTION PIN CONFIGURATION (TOP VIEW) M52745SP is semiconductor integrated circuit for CRT display monitor. It includes OSD blanking, OSD mixing, retrace blanking, wide band 32 BRIGHTNESS 1 VCC 12V(R) amplifer, brightness control, uniformity function. 31 OSD IN(R) 2 OUTPUT(R) Main/sub contrast and OSD adjust function can be controlled by I2C OSD IN(B) 30 3 EXT FEED BACK(R) bus. OSD IN(G) 29 VCC 12V(B) 4 28 FEATURES OSD BLK IN 5 OUTPUT(B) 27 • Frequency band width: RGB.............................200MHz (at -3dB) 6 INPUT(R) EXT FEED BACK(B) OSD..............................................80MHz 26 7 VCC 12V GND Input :RGB.........................................