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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. |
