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CH7008A PDF даташит

Спецификация CH7008A изготовлена ​​​​«ETC» и имеет функцию, называемую «Digital PC to TV Encoder Features».

Детали детали

Номер произв CH7008A
Описание Digital PC to TV Encoder Features
Производители ETC
логотип ETC логотип 

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CH7008A Даташит, Описание, Даташиты
CHRONTEL
CH7008A
Digital PC to TV Encoder Features
Features
• Support for low voltage interface to VGA controller
• Universal digital interface accepts YCrCb (CCIR656)
or RGB (15, 16 or 24-bit multiplexed) video data in
both non-interlaced and interlaced formats
• TrueScale TM rendering engine supports underscan
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
• Programmable power management
• 9-bit video DAC outputs
• Complete Windows and DOS driver software
• Offered in 44-pin PLCC, 44-pin TQFP
General Description
Chrontel’s CH7008 digital PC to TV encoder is a stand-
alone integrated circuit which provides a PC 99 compliant
solution for TV output on non-DVD enabled systems.
Suggested application use with the Intel 810 chipset &
Intel 810E chipset.* 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 TrueScaleTM
scaling and deflickering engine, the CH7008 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 CH7008 ideal for system-level
PC solutions. All features are software programmable
through a standard I2C port, to enable a complete PC
solution using a TV as the primary display.
Patent number 5,781,241
¥ Patent number 5,914,753
LINE
MEMORY
D[11:0]
PIXEL DATA
DIGITAL
INPUT
INTERFACE
RGB-YUV
CONVERTER
TRUE SCALE
SCALING &
DEFLICKERING
ENGINE
YUV-RGB CONVERTER
NTSC/PAL
ENCODER
& FILTERS
TRIPLE
DAC
GPIO[1:0]
I2C REGISTER &
CONTROL BLOCK
SYSTEM CLOCK
PLL
TIMING & SYNC
GENERATOR
SC SD
RESET*
XCLK*
H V XI/FIN XO CSYNC P-OUT DS/BCO
Figure 1: Functional Block Diagram
201-0000-027 Rev 2.2, 9/30/99 *Intel 810 and Intel 810E are Trademarks of Intel Corp
Y/R
C/G
CVBS/B
ISET
1









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CH7008A Даташит, Описание, Даташиты
CHRONTEL
CH7008A
D[1]
D[2]
D[3]
D[4]
DVDD
D[5]
D[6]
DGND]
D[7]
D[8]
D[9]
7
8
9
10
11
12
13
14
15
16
17
CHRONTEL
CH7008
39 XO
38 XI/FIN
37 AVDD
36 DVDD
35 RESET*
34 DGND
33 SC
32 SD
31 VDD
30 ISET
29 GND
Figure 2: 44-Pin PLCC
2 201-0000-027 Rev 2.2, 9/30/99









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CH7008A Даташит, Описание, Даташиты
CHRONTEL
CH7008A
D[1]
D[2]
D[3]
D[4]
DVDD
D[5]
D[6]
DGND]
D[7]
D[8]
D[9]
1
2
3
4
5
6
7
8
9
10
11
CHRONTEL
CH7008
33 XO
32 XI/FIN
31 AVDD
30 DVDD
29 RESET*
28 DGND
27 SC
26 SD
25 VDD
24 ISET
25 GND
Figure 3: 44-Pin TQFP
201-0000-027 Rev 2.2, 9/30/99
3










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Номер в каталогеОписаниеПроизводители
CH7008ADigital PC to TV Encoder FeaturesETC
ETC
CH7008A-TDigital PC to TV Encoder FeaturesETC
ETC
CH7008A-VDigital PC to TV Encoder FeaturesETC
ETC

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