Datasheet > ELM622SM

ELM622SM

更新时间： 2024-11-26 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

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ELM622SM 数据手册

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.

VDD

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

IRRx

RTS

CTS

LED

100ms

Pulse

Generator

99999

Detector

Reset

ELM622DSA

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