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AD723ARU-REEL7

更新时间： 2024-11-02 20:08:35
品牌 Logo 应用领域
亚德诺 - ADI 编码器光电二极管商用集成电路
页数 文件大小 规格书
20页 669K
描述
IC COLOR SIGNAL ENCODER, PDSO28, TSSOP-28, Color Signal Converter

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AD723ARU-REEL7 数据手册

 浏览型号AD723ARU-REEL7的Datasheet PDF文件第2页浏览型号AD723ARU-REEL7的Datasheet PDF文件第3页浏览型号AD723ARU-REEL7的Datasheet PDF文件第4页浏览型号AD723ARU-REEL7的Datasheet PDF文件第5页浏览型号AD723ARU-REEL7的Datasheet PDF文件第6页浏览型号AD723ARU-REEL7的Datasheet PDF文件第7页 
a2.7 V to 5.5 V RGB-to-NTSC/PAL Encoder with  
Load Detect and Input Termination Switch  
AD723  
FEATURES  
or combined for composite video (CV). All outputs are avail-  
able separately and optimized for driving 75 Ω loads. Active  
termination is used for lower power consumption.  
Low Cost, Fully Integrated Solution for NTSC/PAL  
Composite and Y/C (S-Video) Outputs  
Current Output Drives 75 ⍀ Loads  
A smart load detect feature powers down unused outputs and  
can be used to monitor the continuing presence or absence of  
an external TV. This enables plug-and-play operation. In addition,  
a logic controlled triple switch at the input solves the applica-  
tions problem of differing load conditions when an RGB monitor  
is disconnected. When an RGB monitor is not present, the R,  
G, and B terminations are enabled by the user. This solution  
ensures no loss of video bandwidth when the RGB monitor is  
in operation.  
DC-Coupled: Supports TV Load Detect  
No Large AC-Coupling Capacitors at Output  
Self-Power-Down of Unloaded Output Drivers  
Triple Switch to Enable RGB Termination  
Integrated Delay Line and Auto-Tuned Filters  
Y-Trap to Eliminate Cross Color Artifacts  
3 V Supply Operation: Low Power  
< 100 mW: Composite Active (Typical)  
< 150 mW: S-Video Active (Typical)  
<1 ␮A: Power-Down Current  
In PC applications, flicker filter support is provided by the  
graphics controller, which has direct access to memory. Under-  
scan compensation, necessary for uses other than video or  
DVD, is supported through choice of RGB output clocks and  
sync intervals.  
APPLICATIONS  
TV Out for Personal Computers/Laptops  
Digital Cameras  
Set-Top Boxes  
Video Games  
Internet Appliances  
An optional luminance trap (YTRAP) provides a means of  
reducing cross color artifacts due to subcarrier frequency infor-  
mation in the Y signal.  
PRODUCT DESCRIPTION  
The AD723 is a low cost RGB-to-NTSC/PAL encoder that  
converts analog red, green, and blue color component signals  
into their corresponding luminance and chrominance signals for  
display on an NTSC or PAL television. Luminance (Y) and  
Chrominance (C) signals are available individually for S-video,  
The AD723 is available in a 28-lead TSSOP package and is  
capable of operation from supplies of 2.7 V to 5.5 V.  
FUNCTIONAL BLOCK DIAGRAM  
CURRENT OUTPUT DRIVERS  
WITH SMART LOAD DETECT  
8FSC CLK  
TRIPLE INPUT  
TERMINATION  
LUMINANCE  
Y
Y
U
V
RIN  
RT  
DC  
4-POLE  
LPF  
LUMA  
DELAY LINE  
4-POLE  
LPF  
CLAMP  
LUMA  
TRAP  
Y TRAP  
COMPOSITE  
GND  
CSYNC  
CV  
RGB-TO-YUV  
ENCODING  
MATRIX  
GIN  
GT  
DC  
CLAMP  
4-POLE  
LPF  
CHROMINANCE  
BALANCED  
MODULATORS  
GND  
C
4-POLE  
LPF  
BURST  
BIN  
BT  
DC  
CLAMP  
4-POLE  
LPF  
YSET  
CSET  
GND  
SIN  
COS  
BURST  
GAIN SET  
RESISTORS  
TERM  
AD723  
CVSET  
QUADRATURE  
DECODER  
FSC  
4FSC  
HSYNC  
VSYNC  
BURST  
CSYNC  
SYNC  
SEPARATOR  
CE  
TV DETECT  
STND  
REV. 0  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, nor for any infringements of patents or other rights of third parties  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 2000  
1234567...20

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AD723ARU-REEL7 替代型号

型号 品牌 替代类型 描述 数据表
AD723ARU-REEL ADI

完全替代

 2.7 V to 5.5 V RGB-to-NTSC/PAL Encoder with Load Detect and Input Termination Switch
AD723ARUZ ADI

功能相似

 2.7 V to 5.5 V RGB-to-NTSC/PAL Encoder with Load Detect and Input Termination Switch

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AD724-00 RHOPOINT

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