CH7005C-V ETC [List of Unclassifed Manufacturers], CH7005C-V Datasheet

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CH7005C-V

Manufacturer Part Number
CH7005C-V
Description
Digital PC to TV Encoder with Macrovision
Manufacturer
ETC [List of Unclassifed Manufacturers]
Datasheet
CHRONTEL
Features
• Supports Macrovision
• 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
¥
201-0000-025 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]
TM
Digital PC to TV Encoder with Macrovision
rendering engine supports undescam
INTERFACE
DIGITAL
INPUT
SC
CONTROL BLOCK
I
2
C REGISTER &
TM
SD
7.X anti-copy protection
CONVERTER
RGB-YUV
2
C port
RESET*
*Intel I740 is a Trademark of Intel Corp
Figure 1: Functional Block Diagram
† ¥
SYSTEM CLOCK
DEFLICKERING
TRUE SCALE
SCALING &
MEMORY
ENGINE
XCLK
PLL
LINE
General Description
Chrontel’s CH7005 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 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
solution using a TV as the primary display.
YUV-RGB CONVERTER
H
TIMING & SYNC
GENERATOR
& FILTERS
ENCODER
NTSC/PAL
V
XI XO/FIN
2
C port, to enable a complete PC
CSYNC
P-OUT
TRIPLE
DAC
DS/BCO
CH7005C
TM
C/G
Y/R
CVBS/B
RSET
TM
1

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