CH8438 Description
Chrontel’s CH8438 bines a 24-bit digital video interface, YUV to RGB converter, three 8-bit DACs, a high-speed analog multiplexer, an analog input attenuator, and three video buffers in one integrated circuit. The CH8438’s high-speed analog multiplexer allows simultaneous display of video (digital RGB) with graphics (analog RGB), making CH8438 ideal for video games, editing, PC video, and for applications requiring...
CH8438 Key Features
- Triple 8-bit DAC and buffers support 1280 x 1024 display resolution
- High-speed multiplexing between digital and analog RGB signals
- 24-bit digital RGB interface supports up to 16.7 million colors
- Supports CCIR601 4:2:2 YCrCb input formats
- Built in YUV-to-RGB color space conversion
- Analog auxiliary inputs with programmable input attenuation
- 2’s plement input capability on Red and Blue channels, supporting 4:4:4 YUV format with analog YUV outputs
- Programmable brightness, contrast, and hue attributes for the digital input signals
- Programmable switching delay
- Two-wire serial programming