MLX90121
MLX90121
RFID Transceiver IC from Melexis Semiconductors
Features
The MLX90121 is an ISO compliant 13.56MHz RFID transceiver IC with user selectable modulation depth in write mode and single sub-carrier ASK, FSK and PSK modulations are recognized in the read mode.
The receiver is based on a diode envelope detector, followed by an IF filter and amplifier. A logarithmic amplifier is used for single subcarrier ASK detection, ensuring fast and clean data recovery. The limiting output of this amplifier is used for FSK and PSK recovery.
The transmitter uses a built in open drain output transistor, which can provide up to 250mW of RF power to a 50Ohms load with a 5V power supply using the recommended matching network. This is suitable for most short to mid range applications.
A simplified antenna and matching network can be used, at the expense of a reduced reading range, for example in hand-held reader applications. The chip is configured with a serial interface and a synchronization signal is available when the majority voting is used.
The digital part contains ASK, FSK (423KHz / 484kHz ) and PSK ( 847KHz ) decoders and a programmable encoder to facilitate data handling with a low cost microcontroller. The encoder can be programmed with 6 different patterns. The chip can also be used as an analog frontend, in direct mode.
Support documents for the MLX90121
Below is the support information available for the MLX90121 - select a link to download the relevant documentation.
APNO-0041 - Power Booster
Application Note for a Power Booster using the Melexis MLX90121 RFID Transceiver IC
Dated : 10 November 2005 ( Uploaded )
Relevant to : MLX90121
APNO-0042 - Modulation Index Switch
Application Note for a Modulation Index Switch using the Melexis MLX90121 RFID Transceiver IC
Dated : 10 November 2005 ( Uploaded )
Relevant to : MLX90121
APNO-0043 - Progressive Field Increase
Application Note for Progressive Field Increase using the Melexis MLX90121 RFID Transceiver IC
Dated : 10 November 2005 ( Uploaded )
Relevant to : MLX90121
APNO-0044 - 1W 5V Power Booster
Application Note for a 1W 5V Power Booster using the Melexis MLX90121 RFID Transceiver IC
Dated : 10 November 2005 ( Uploaded )
Relevant to : MLX90121
APNO-0045 - Supporting Different Modulation Modes
Application Note for Supporting Different Modulation Modes using the Melexis MLX90121 RFID Transceiver IC
Dated : 10 November 2005 ( Uploaded )
Relevant to : MLX90121
APNO-0046 - 13.56MHz RFID Systems and Antenna Design
Application Note for 13.56MHz RFID Systems and Antenna Design using the Melexis MLX90121 RFID Transceiver IC
Dated : 10 November 2005 ( Uploaded )
Relevant to : MLX90121
APNO-0047 - Low Power Reader
Application Note for a Low Power Reader using the Melexis MLX90121 RFID Transceiver IC
Dated : 10 November 2005 ( Uploaded )
Relevant to : MLX90121
APNO-0048 - Near Field Communication Protocol
Application Note for Near Field Communication Protocol using the Melexis MLX90121 RFID Transceiver IC
Dated : 10 November 2005 ( Uploaded )
Relevant to : MLX90121
DATA-0232 - Product Datasheet
Product Datasheet for the Melexis MLX90121 RFID Transceiver IC
Dated : 22 December 2005 ( Uploaded )
Relevant to : MLX90121
DVK90121 - Development Kit
Development Kit for the Melexis MLX90121 RFID Transceiver IC
Dated : 21 November 2011 ( Uploaded )
Relevant to : MLX90121
EVB90121 - Evaluation Board
Evaluation Board for the Melexis MLX90121 RFID Transceiver IC
Dated : 21 November 2011 ( Uploaded )
Relevant to : MLX90121
MISC-0033 - Quick Reference
Quick Reference for Melexis RFID ICs
Dated : 28 November 2005 ( Uploaded )
Relevant to : Melexis Semiconductors - Semiconductors - RFID
News information for the MLX90121
Below is the news information available for the MLX90121 - select a link to view the relevant information.
Sorry, no news information is available for this product.
