• Support for low voltage interface to VGA controller
• Universal digital interface accepts YCrCb (CCIR656) or RGB (15, 16 or 24-bit multiplexed) video data in both non-interlaced and interlaced formats
• True scale rendering engine supports underscan operations for various graphic resolutions
• Enhanced text sharpness and adaptive flicker removal with up to 5-lines of filtering
• Enhanced dot crawl control and area reduction
• Fully programmable through serial port
• Supports NTSC, NTSC-EIA (Japan), and PAL (B, D, G, H, I, M and N) TV formats
• Provides Composite, S-Video and SCART outputs
• Auto-detection of TV presence
• Programmable power management
• 9-bit video DAC outputs
• Complete Windows and DOS driver software
• Offered in 44-pin PLCC , 44-pin LQFP

Description

Chrontel's CH7008 digital PC to TV encoder is a stand-alone integrated circuit which provides a PC 99 compliant solution for TV output on non-DVD enabled systems. Suggested application use with the Intel® 810 chipset and Intel® 810E chipset. It provides a universal digital input port to accept a pixel data stream from a compatible VGA controller (or equivalent) and converts this directly into NTSC or PAL TV format.

This circuit integrates a digital NTSC/PAL encoder with 9-bit DAC interface, and new adaptive flicker filter, and high accuracy low-jitter phase locked loop to create outstanding quality video. Through its true scale scaling and deflickering engine, the CH7008 supports full vertical and horizontal underscan capability and operates in 5 different resolutions including 640x480 and 800x600.

A new universal digital interface along with full programmability make the CH7008 ideal for system-level PC solutions. All features are software programmable through a serial port, to enable a complete PC solution using a TV as the primary display.