EVB90109 Melexis Inc, EVB90109 Datasheet - Page 6

• Manufacturer Part Number: EVB90109
• Description: BOARD EVAL FOR MLX90109
• Manufacturer: Melexis Inc
• Type: Development kitr

Specifications of EVB90109

• Contents: Evaluation Board
• For Use With/related Products: MLX90109
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

EVB90109
MLX90109 Evaluation Board
2.7 Fast decay circuit
Very small fall time may be required in fast protocol, to be understood by the transponder in the field. This is
why, the EVB90109 include a “fast decay” circuit controlled through the pin FAST_DECAY and composed of
the transitstor Q1 and the diode D1. The following picture shows how to implement the “fast decay” system.
Picture 1: Fast Decay module control, (1) Antenna, (2) MODUR2, (3) FAST_DECAY
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Evaluation Board
Rev 005
Aug-2005