CH8438 Datasheet Video Multiplexer

Manufacturer: Chrontel

Overview: CHRONTEL Video Multiplexer with Source Control CH8438 Preliminary.

CH8438 video multiplexer by Chrontel - Datasheet Preview

Datasheet Details

Part number	CH8438
Manufacturer	Chrontel
File Size	55.98 KB
Description	Video Multiplexer
Download	CH8438 Download (PDF)

General Description

Chrontel’s CH8438 combines 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 picture-in-picture capability.

CH8438 provides a 24-bit digital pixel bus interface, which supports RGB, 4:4:4 YUV and 4:2:2 YCrCb input formats.

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 complement input capability on Red and Blue channels, supporting 4:4:4 YUV format wit.

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