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ELM622SM PDF预览

ELM622SM

更新时间: 2024-10-30 04:17:19
品牌 Logo 应用领域
ELM 遥控
页数 文件大小 规格书
5页 33K
描述
Infrared Remote Interpreter

ELM622SM 数据手册

 浏览型号ELM622SM的Datasheet PDF文件第2页浏览型号ELM622SM的Datasheet PDF文件第3页浏览型号ELM622SM的Datasheet PDF文件第4页浏览型号ELM622SM的Datasheet PDF文件第5页 
ELM622  
Infrared Remote Interpreter  
Description  
Features  
The ELM622 is an interface circuit for converting  
• Low power CMOS design - typically 1mA at 5V  
• RS232 formatted output at 9600 baud  
• Hardware handshaking provided  
infrared control codes to an eight bit serial format.  
This device is well suited to applications that only  
require occasional input from humans, or where a  
hidden interface is desired.  
• Signal received output for visual feedback  
• Simple interface to standard receiver modules  
• Works with universal TV remote transmitters  
• Reset output on command  
When connected to a standard infrared receiver  
module, the ELM622 continually scans the data  
stream for Sony™ television control codes. If  
detected, the codes are retransmitted serially, with  
hardware handshaking. This data can then be used  
directly by logic circuits, or suitably buffered and  
transmitted on a standard RS232 connection.  
• High current drive outputs - up to 25 mA  
For convenience, some of the control codes are  
translated to their ASCII equivalents before  
retransmission, allowing direct display of the  
common control signals on an ASCII terminal.  
Connection Diagram  
PDIP and SOIC  
(top view)  
Many products that currently rely on a keyboard  
for input can benefit from the small size and  
simplicity that an ELM622 provides, and several  
others are likely to benefit from the at-a-distance  
control that this circuit offers.  
1
2
3
4
8
7
6
5
VDD  
Tx  
VSS  
Reset  
LED  
IRRx  
Applications  
RTS  
CTS  
• Alternative to keyboard interface  
• Hidden security system control  
• Non-contact device control for safety  
• Home automation receiver  
Block Diagram  
Data  
Decoder  
Code  
Translator  
RS232  
Encoder  
5
IRRx  
2
Tx  
3
4
RTS  
CTS  
6
LED  
100ms  
Pulse  
Generator  
99999  
Detector  
7
Reset  
ELM622DSA  
Elm Electronics – Circuits for the Hobbyist  
1 of 5  
< http://www.elmelectronics.com/ >  

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