CH7006C-V ETC, CH7006C-V Datasheet

CH7006C-V

Manufacturer Part Number

CH7006C-V

Description

Digital PC to TV Encoder Features

Manufacturer

ETC

Datasheet

1.CH7006C-V.pdf (49 pages)

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CHRONTEL

Features

• Function compatible with CH7004

• Universal digital interface accepts YCrCb (CCIR601

• TrueScale

• Enhanced text sharpness and adaptive flicker removal

• Enhanced dot crawl control and area reduction

• Fully programmable through I

• Supports NTSC, NTSC-EIA (Japan), and PAL (B, D,

• 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

†

201-0000-026 Rev 2.1, 8/2/99

Patent number 5,781,241

Patent number 5,914,753

or 656) or RGB (15, 16 or 24-bit) video data in both

non-interlaced and interlaced formats

operations for various graphic resolutions

with up to 5-lines of filtering

G, H, I, M and N) TV formats

PIXEL DATA

D[15:0]

rendering engine supports underscan

INTERFACE

DIGITAL

INPUT

CONTROL BLOCK

C REGISTER &

Digital PC to TV Encoder Features

CONVERTER

†

RGB-YUV

C port

*Intel I740 is a Trademark of Intel Corp.

RESET*

Figure 1: Functional Block Diagram

† ¥

SYSTEM CLOCK

DEFLICKERING

TRUE SCALE

SCALING &

MEMORY

ENGINE

XCLK

PLL

LINE

General Description

Chrontel’s CH7006 digital PC to TV encoder is a stand-

alone integrated circuit which provides a PC 99 compliant

solution for TV output. Suggested application use with the

Intel I740.* 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

scaling and deflickering engine, the CH7006 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 CH7006 ideal for system-level

PC solutions. All features are software programmable

through a standard I

solution using a TV as the primary display.

YUV-RGB CONVERTER

TIMING & SYNC

GENERATOR

& FILTERS

ENCODER

NTSC/PAL

XO/FIN

C port, to enable a complete PC

CSYNC

P-OUT

TRIPLE

DAC

DS/BCO

CH7006C

C/G

Y/R

CVBS/B

RSET

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