EVB90109
MLX90109 Evaluation Board Manual
REVISION 006 - JUNE 20, 2017
390129010901
Features
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
Application Examples
Car Immobilizers
Portable readers
Battery powered door locks
Access control
House held appliances
Evaluation Board
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.
