• TV output supporting up to 1024x768 graphics resolutions
• Programmable digital interface supports RGB and YCrCb
• True scale rendering engine supports underscan in all TV output resolutions
• Enhanced text sharpness and adaptive flicker removal with up to 7 lines of filtering
• Support for all NTSC and PAL formats
• Provides CVBS, S-Video and SCART (RGB) outputs
• TV connection detect
• Programmable power management
• 10-bit video DAC outputs
• Fully programmable through serial port
• Complete Windows and DOS driver support
• Low voltage interface support to graphics device
• Offered in a 64-pin LQFP package

Note:
CH7012 is the Non Macrovision™ version.

Description

The CH7012B is a Display controller device which accepts a digital graphics input signal, and encodes and transmits data to a TV output (analog composite, s-video or RGB). The device accepts data over one 12-bit wide variable voltage data port which supports five different data formats including RGB and YCrCb.

The TV-Out processor will perform non-interlace to interlace conversion with scaling and flicker filters, and encode the data into any of the NTSC or PAL video standards. The scaling and flicker filter is adaptive and programmable to enable superior text display. Eight graphics resolutions are supported up to 1024 by 768 with full vertical and horizontal underscan capability in all modes. A high accuracy low jitter phase locked loop is integrated to create outstanding video quality. Support is provided for Macrovision™ and RGB bypass mode which enables driving a VGA CRT with the input data.

< Product End-Of-Life announcement > The CH7009A family which includes CH7009A-T, CH7009A-TF, CH7010A-T, CH7010A-TF, CH7011A-T, CH7011A-TF, CH7012A-T, CH7012A-TF, CH7301A-T and CH7301A-TF products is no longer available or supported by Chrontel effective March 5, 2008.

CH7012A-T and CH7012A-TF are obsolete device. Not recommended for new designs, please send email to Info for more information. The replacement is CH7012B-TF.