EVB90121
MLX90121 Evaluation Board
Features and Benefits
Output power up to 200miliwatts
Complies with standard ISO15693 and ISO 14443 protocols
Programmable encoder for custom protocol
Short to medium reading range applications
Matching network optimized for 50 ohm antenna impedance
10 pins connector for communication with a microcontroller
Board voltage supplied by a jack connector from 6 to 9 Volts DC
Internal power supply of the board between 3 Volts and 5 Volts DC
Ordering Information
Part No.
EVB90121
Applications Examples Evaluation Board EVB90121
Freight identification systems
Smart labels and write systems
Access control systems
General Description
The EVB90121 is an assembled module that allows to evaluate the advantages of the MLX90121 13MHz
transceiver IC and to facilitate the development of RFID applications.
The board voltage is supplied by a jack connector from 6 to 9 Volts DC. The internal power supply of the
board can be chosen between 3 Volts and 5 Volts DC by putting the corresponding jumper up or down. A
suppression choke reduces the supply noise.
The matching network can be adjusted through CV1 capacitor and thus can be optimized to transmit full
electromagnetic power up to 200mWatt to a 50-ohm load antenna connected on a SMA connector.
All digital inputs/outputs from the MLX90121 are connected to a standard 10 pins connector. This allows easy
connection to a microcontroller.
390129012101 Page 1 of 8 Evaluation Board
Rev. 002 Jan/07
