ch7006c Chrontel, ch7006c Datasheet
ch7006c
Manufacturer Part Number
ch7006c
Description
Ch7006 Digital Pc To Tv Encoder
Manufacturer
Chrontel
Datasheet
1.CH7006C.pdf
(47 pages)
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CHRONTEL
1. F
• Function compatible with CH7004
• Universal digital interface accepts YCrCb (CCIR601
• True scale rendering engine supports underscan
• Enhanced text sharpness and adaptive flicker removal
• Enhanced dot crawl control and area reduction
• Fully programmable through serial port
• 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 LQFP
†
¥
201-0000-026 Rev. 2.8, 6/24/2004
CHRONTEL
Chrontel
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
EATURES
PIXEL DATA
D[15:0]
INTERFACE
DIGITAL
INPUT
SC
CONTROLLER
SERIAL PORT
SD
Digital PC to TV Encoder Features
CONVERTER
†
RGB-YUV
RESET*
Figure 1: Functional Block Diagram
† ¥
SYSTEM CLOCK
DEFLICKERING
TRUE SCALE
SCALING &
MEMORY
ENGINE
XCLK
PLL
LINE
2. G
Chrontel’s CH7006 digital PC to TV encoder is a stand-
alone 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 true scale 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 serial port, to enable a complete PC
solution using a TV as the primary display.
ENERAL
YUV-RGB CONVERTER
H
TIMING & SYNC
GENERATOR
& FILTERS
ENCODER
NTSC/PAL
V
XI
D
XO/FIN
ESCRIPTION
CSYNC
P-OUT
TRIPLE
DAC
DS/BCO
CH7006C
C/G
Y/R
CVBS/B
RSET
1
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