EVB90109
MLX90109 Evaluation Board
Features and Benefits
Minimum PCB size (30 * 30 mm) including a MLX90109 transceiver IC and an optimized antenna
Tuned resonance frequency to 125kHz
Modulation network on board for a maximum flexibility
Setup for fast On/Off keying modulation mode
DIL-10 footprint for easy mounting on prototype set up and development kit
Ordering Information
Part No.
EVB90109
Applications Examples
Evaluation Board
Car Immobilizers
Portable readers
Battery powered door locks
Access control
House held appliances
General Description
The EVB90109 is an assembled module that allows evaluating the advantages of the MLX90109 transceiver
IC. It will facilitate the starts of RFID applications and can be implemented in a compact way, with minimum
development time, and minimum final system cost. All pins of the MLX90109 reader are available on a DIL
socket for easy control with an external microcontroller. Two extra pins have been added for extended control
options on the voltage on the MODU pin.
The EVB90109 can be used as a 125 kHz reader, to read out the load modulation from a transponder. It can
also be used to send information to a transponder using On/Off keying modulation. For fast protocol which
required fast fall time on the reader’s antenna, the EVB90109 includes a “Fast
decay”
circuit composed of an
external transistor and diode in parallel on the antenna. This circuit is accessible through a digital pin on the
DIL-10 connector.
390129010901
Rev 005
Page 1 of 10
Evaluation Board
Aug-2005
MELEXIS [ Melexis Microelectronic Systems ]
