Product category:
Optical Transceivers, Transponders and Repeaters
News Release from: Rohm Electronics | Subject: RPM882-H7
Edited by the Electronicstalk Editorial
Team on 07 August 2003
Tiny module provides all-in IrDA
communications
A low-power IrDA-compliant communications module integrates a built-in LED driver and remote control transmission functionality in a single, compact package.
A low-power IrDA-compliant communications module integrates a built-in LED driver and remote control transmission functionality in a single, compact package Ideal for use in mobile phones, PDAs and other portable applications, the RPM882-H7 module has a transmission distance for remote control of 9m and an LED current of up to 200mA
This article was originally published on Electronicstalk on 29 May 2008 at 8.00am (UK)
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LED drivers run straight from the mains
AC/DC modules integrate LED-driving control circuits, switching elements, isolation transformers and constant-current circuits into a single SIL package.
Unlike previous two-chip solutions, the new IrDA module is a one-chip construction that uses a single LED for IrDA transmission and remote control purposes.
This ensures excellent directivity free of optical axis deviation.
Adoption of a high luminous intensity GaAlAs LED technology halves the current consumption and extends data transmission distance 1.8 times further when compared with previously available IrDA devices.
The RPM882-H7 operates from a typical supply voltage of between 2.4 and 3.6V, while the control interface can be operated at voltages down to just 1.5V.
A very low current consumption in standby and shutdown mode further contributes to extended battery life in portable applications.
Built into a subminiature package measuring 8.0 x 2.2 x 2.9mm, the RPM882-H7 incorporates all necessary driver functions, allowing designers to minimise component count and save board space.
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