MS1830  Analog RGB to CVBS/S-Video Converter

General Description   The MS1830 is a single chip RGB to CVBS/S-Video converter with embedded SDRAM.It consists of 10-bit triple-ADC for RGB input,ITSC/PAL encoder with 10-bit DAC for output,integrated OSD function It is capable of video enhancement,3D noise reduction,brightness/saharpness and hue adjustment,which can help the designer acquired video quality. Features Analog Input   10-bit triple-ADC   Maximum analog sampling rate up to 165MSPS   Supports analog input range:0.45V-1.1V(P-P)   Supports RGBHV input   Auto offset/phase adjustment   Supports input resolution up to 1080P Auto-mode Detection Auto Position(Blank)Detection External Memory Controller   Supports 2M Byte memort size   16-bit data access   Memory bus speed up to 135MHZ Scaler   Independent horizontal and vertical scaling up and down from(1/8)x to 8x   Frame rate conversion Video Enhancement   Black/white level expansion   Color transition improvement   Dynamic peaking   Dynamic range expansion   Brightness saturation,contrast and hue adjustable Embedded OSD   Supports 1 bit DRCS character mode   Zoom in   One OSD window with alpha-blending Output Format   10-bit triple-DAC for component video output   Supports CVBS and S-Video output   Suports NTSC(J,M,4.43)and PAL(B,D,G,H,M,Nc,60) 2-wire I2C Slave Interface Package   TQFP-48 plastic(7mm x 7mm)   PB-free and RoHS compliant Applications   Car Infotmainment Device   VGA to CVBS Adapter/Docking Station   Handheld/Portable Device

Function Block Diagram

Function Description   The MS1830 is a Single Chip VGA to AV Converter,which support 10-bit quality DAC,CVBS and S-Video output simultaneously

Horizontal/Vertical Scaling and Frame Rate Conversion   MS1820 Horizontal/Vertical scaling engine can change the video resolution,which scaling ratio from(1/8)x to 8x both for Horizontal and Vertical,Frame tate conversion engine can change the video frame rate such as 50Hz to 60Hz. OSD Engine   The Embedded character-based OSD Engine supports 1 bit DRCS character mode. The MS1830 supports 256 levels of alpha blending to overlay OSD image on background video.