MiTAC 7521 PLUS/N Benutzerhandbuch

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The Chrontel’s CH7005 digital PC to TV encoder is a standalone integrated circuit which provides a PC 99 compliant 

solution for TV output. 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 TrueScale TM scaling and

deflickering engine, the CH7005 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 CH7005 ideal for system-level PC solutions. 

All features are software programmable through a standard I 2 C port, to enable a complete PC solution using a TV as the 

primary display.

CH7005 Features
Supports MacrovisionTM 7.X anti-copy protection
Function compatible with CH7004
Universal digital interface accepts YCrCb (CCIR601or 656) or RGB (15,16 or 24-bit) video data in both non-interlaced 

and interlaced formats
TrueScaleTM rendering engine supports undescam 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 I2C 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
Supports VBI pass-through
Programmable power management
9-bit video DAC outputs
Complete Windows and DOS driver software
Offered in 44-pin PLCC, 44-pin TQFP