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參數資料
| 型號： | CH7001C |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | VGA to NTSC/PAL Encoder |
| 中文描述： | VGA到的NTSC / PAL編碼器 |
| 文件頁數： | 1/18頁 |
| 文件大小： | 108K |
| 代理商： | CH7001C |
CH7001C
201-0000-028 Rev 3.0, 6/2/99
1
CHRONTEL
VGA to NTSC/PAL Encoder
Features
Enhanced bandwidth and signal-to-noise ratio for
higher video performance
Integrated triple video rate 8-bit analog to digital
converters for input RGB
3-line digital vertical filtering with pin-
programmable characteristics for optimum anti-
flicker and resolution
On-chip phase-locked loop generates sampling
clock from VGA horizontal sync
Enhanced power management for selective circuit
power-down
Simultaneous composite/S-video output
Horizontal and vertical position control
Pin-programmable underscan/overscan mode
On-chip reference generation and loop filter
CMOS technology in 44-pin PLCC
5V supply
Description
Chrontel’s CH7001C VGA to NTSC/PAL encoder is a
stand-alone integrated circuit that converts analog VGA
inputs directly into 525-line (M) NTSC or 625-line
(B, D, G, H, I) PAL composite video and S-video
outputs.
This circuit integrates a digital NTSC/PAL encoder
with 8-bit ADC and DAC interfaces, a 3-line vertical
filter and low-jitter phase-locked loop to create
outstanding quality video with 24-bits-per-pixel proces-
sing throughout the entire signal path.
A high level of integration and performance makes the
CH7001C ideal for a variety of stand-alone and system-
level integration solutions, including notebook
computers and PC add-on graphics cards.
Figure 1: Functional Block Diagram
ADC
ADC
ADC
VERTICAL
FILTER
SCAN-RATE
CONVERTER
COLOR
SPACE
CONVERTER
U
FILTER
V
FILTER
DAC
DAC
DAC
Σ
Σ
X
M
U
X
M
U
X
M
U
X
Y
FILTER
BLANKCONTROL
BLANKING
H,V SYNC
GENERATOR
X
SIN + COSINE
GENERATOR
PLL
OSC
SYSTEM CLOCKS
R
G
B
H
V
Y
CVBS
C
MS[1:0]
RSET
RSET
AVDD
VDD
VREF
VREF1
VREF2
UNDERSCAN
PD[1:0]
NTSC/PAL*
CLKEN*
HORIZONTAL, VERTICAL
POSITION CONTROL
STROBE
CLKOUT
DVDD
相關PDF資料 |
PDF描述 |
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| CH7001C-V | VGA to NTSC/PAL Encoder |
| CH7002D | Scalable VGA to NTSC/PAL Encoder |
| CH7002D-V | Scalable VGA to NTSC/PAL Encoder |
| CH7004C | Digital PC to TV Encoder with Macrovision |
| CH7004C-T | Digital PC to TV Encoder with Macrovision |
相關代理商/技術參數 |
參數描述 |
|---|---|
| CH7001C-V | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:VGA to NTSC/PAL Encoder |
| CH7001V | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC |
| CH7002D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Scalable VGA to NTSC/PAL Encoder |
| CH7002D-V | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Scalable VGA to NTSC/PAL Encoder |
| CH7003B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Digital PC to TV Encoder |
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