PMAfob - Keyfob Application Example

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PMAfob is a typical application design for a wireless remote control transmitter. It is a single-chip solution utilizing the unique advantages of the SmartLEWIS™ MCU family which combines an 8-bit microcontroller and an RF-transmitter.

A design goal was reasonable RF-performance despite of very restricted physical dimensions of the keyfob’s housing and lowest system cost. With the 434 MHz PCB-loop-antenna and an optimized RF-matching network the radiated power spectrum complies with FCC and ETSI regulations for wireless devices.

Besides the hardware design, PMAfob comprises an application software example including encryption and rolling code functionality and a demonstrator software. The demonstrator software running on the PC is available in two versions, one demonstrating typical Home Automation applications and the other an automotive RKE system (Remote Keyless Entry).


Order Information:

The PMAfob is a demonstrator only and could be made available on request. Hardware and Software references are available for Download.

Application Notes

Title Size Date Version
1.1 MB 11 Oct 2010 01_02
923 KB 11 Oct 2010 01_02

Product Overview

Title Size Date Version
204 KB 13 May 2013 01_01

Additional Product Information

Title Size Date Version
51 KB 01 Oct 2014 02_00

Application Brochure

Title Size Date Version
5.4 MB 01 Apr 2013 01_00
6.9 MB 01 Jul 2013

Product Selection Guide

Title Size Date Version
22.4 MB 29 Mar 2017 01_00

Reference Design

Title Size Date Version
507 KB 05 Jun 2009 01_00

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Development Tools

Title Size Date Version
1.3 MB 20 Oct 2010 02_01
2.5 MB 20 Oct 2010 01_01
2 MB 20 Oct 2010 01_01
5.1 MB 20 Oct 2010 01_01
521 KB 20 Oct 2010 01_01