MS1835

The MS1835 is a converter chip that integrates SDRAM and MCU and is designed for converting RGB signals to CVBS/S-Video. The RGB input signals are sampled by a 3-channel 10-bit ADC, then encoded into NTSC/PAL format, and finally output as CVBS/S-Video signals through a 10-bit video DAC. The chip also includes features such as OSD (On-Screen Display), video enhancement processing, 3D noise reduction, and adjustments for brightness, saturation, sharpness, and chroma. These functions and video quality enhancements help users achieve the desired functionality and video output. With its built-in MCU, the chip can handle various application scenarios without requiring user configuration, thus reducing costs and improving ease of use.

Analog Sampling and Conversion

• 10-bit triple-ADC
• Maximum analog sampling rate up to 165MSPS
• Supports analog input range: 0.45V ~ 1.1V (P-P)

Color Enhancement and Adjustment

• Color transition improvement
• Brightness, saturation, contrast, and hue adjustable
• Black/white level expansion

Input and Output Support

• Supports RGBHV input
• Supports CVBS and S-Video output
• Supports NTSC(J,M,4.43) and PAL(B,D,G,H,I,M,N,Nc,60)

Image Processing and Display

• Dynamic peaking
• Supports 1 bit DRCS character mode
• Auto offset/phase adjustment
• Zoom in
• One OSD window with alpha-blending

Resolution and Scaling

• Supports input resolution up to 1080P
• Independent horizontal and vertical scaling up and down from (1/8)x to 8x

Video Output and Conversion

• 10-bit triple-DAC for component video output
• Frame rate conversion
• Support interlace signal input

Package

• TQFP48 (7mm×7mm)

MS1835 Function Block Diagram