MS1830  Analog RGB to CVBS/S-Video Converter

General Descrip  TI on
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 func  TI on It is capable of video enhancement,3D noise reduc  TI on,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 resolu  TI on 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.