MLX90109CDC-AAA-000-RE Melexis

MLX90109 125kHz RFID Transceiver Features and Benefits Integrated RFID transceiver Adressing 100kHz to 150kHz frequency range transponder. Biphase and Manchester ASK. ON/OFF keying modulation. Low Power and high performances Unique Parallel Antenna concept for maximum power efficiency. Power down mode available. Baud rate selectable on-chip filtering for maximum sensitivity. No zero modulation problems. Low cost and compact design SO8 package and high level of integration for compact reader design. No external quartz reference required, only 2 resistors plus antenna. On chip decoding for fast system design and ease of use. Open drain data and clock outputs for 2-wire serial communication. Applications Examples Car Immobilizers Portable readers Access control House held appliances Ordering Code Product Code Temperature Code Package Code Option Code Packing Form Code MLX90109 E DC AAA-000 RE MLX90109 E DC AAA-000 TU MLX90109 C DC AAA-000 RE MLX90109 C DC AAA-000 TU Legend: Temperature Code: E for Temperature Range -40C to 85C C for Temperature Range 0C to 70C Package Code: DC for SOIC150Mil Packing Form: RE for Reel, TU for Tube Ordering example: MLX90109EDC-AAA-000-RE REVISION 011 - JUNE 19, 2017 3901090109 (2) MLX90109 125kHz RFID Transceiver 1. Functional diagram 2. Description The MLX90109 is a single chip RFID transceiver for the VDD 125kHz frequency range. It has been conceived for VDD minimum system cost and minimum power consumption, offering all required flexibility for a state of the art AM MODU RC modulation MLX90109 network transceiver base station. An external coil (L), and capacitor COIL (C) are connected as a parallel resonant circuit, that determines the carrier frequency and the oscillator frequency of the reader. This eliminates zero modulation effects by perfect antenna tuning, and avoids the need for an external oscillator. The reader IC can easily be switched to power down by microcontroller setting the antenna amplitude to zero. (1): MODE/SPEED config settings The MLX90109 can be configured to decode the (2): DATA/CLOCK outputs transponder signal on-chip. In this case the decoded signal is available through a 2-wire interface with clock and data. For minimum interface wiring, the non-decoded transponder signal can also be made available on a single wire interface. Page 2 of 17 REVISION 011 - JUNE 19, 2017 3901090109 (1)