M52742ASP

M52742ASP BUS Controlled 3-Channel Video Preamp for CRT Display Monitor REJ03F0192-0201 Rev.2.01 Mar 31, 2008 Description M52742ASP is semiconductor integrated circuit for CRT display monitor. It includes OSD blanking, OSD mixing, retrace blanking, wide band amplifier, brightness control, uniformity function. Main/sub contrast and OSD adjust function can be controlled by I2C BUS. Features Frequency band width: RGB 200 MHz (at −3 dB) OSD 80 MHz Input: RGB 0.7 VP-P (typ.) OSD 3 VP-P min. (positive) BLK (for OSD) 3 VP-P min. (positive) Retrace BLK 3 VP-P min. (positive) Output: RGB 5.5 VP-P (max.) OSD 5 VP-P (max.) Main contrast and sub contrast can be controlled by I2C BUS. Include internal and external pedestal clamp circuit. Application CRT display monitor Recommended Operating Condition Supply voltage range: 11.5 to 12.5 V (V3, V8, V12, V36) 4.5 to 5.5 V (V17) Rated supply voltage: 12.0 V (V3, V8, V12, V36) 5.0 V (V17) Major Specification BUS controlled 3ch video pre-amp with OSD mixing function and retrace blanking function REJ03F0192-0201 Rev.2.01 Mar 31, 2008 Page 1 of 26 M52742ASP Block Diagram OSD IN (R) 4 MAIN BRIGHTNESS 30 RETRACE BLK IN 27 INPUT (R) 2 VCC1 (R) 12 V 3 GND1 (R) 5 OSD IN (G) 9 Clamp INPUT (G) 6 VCC1 (G) 12 V 8 GND1 (G) 10 Clamp OSD IN (B) 13 INPUT (B) 11 Clamp VCC1 (B) 12 V 12 GND1 (B) 14 CONTRAST 15 (ABL) IN INPUT (SOG) 7 SOG SEP OUT 18 Sync on Green Sep Sub contrast Sub Cont (8 bit) Main contrast OS...