Datasheet > MLX90121

MLX90121

更新时间： 2024-09-18 04:15:11

品牌	Logo	应用领域
迈来芯 - MELEXIS		/
页数	文件大小	规格书
26页	387K
描述
13.56MHz RFID Transceiver

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中文翻译

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数据手册

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MLX90121 数据手册

MLX90121

13.56MHz RFID Transceiver

Features and Benefits

Applications

ꢀ

Conforms with ISO14443A⁽¹⁾⁽³⁾

Conforms with ISO14443B⁽²⁾

Confroms with ISO15693⁽³⁾

ꢀ

Portable data terminals

Access control readers

Contact-less payment terminals

Smart label printer

Programmable encoder and decoder

Low external component count

(1).Purchase of MLX90121s doesn’t imply any grant of any ISO14443A license. Customers are advised to sign patent licensing

agreements with all third parties, especially those companies listed in the introduction of the corresponding standard.

(2) RATP / Innovatron Technology

(3) Conformance with ISO/IEC15693 “long distance mode” (6.6kb/s ASK) and ISO/IEC14443A is limited to a temperature range from

O°C to 85°C.

Ordering Information

Part No.

Temperature Suffix

Package Code

Option code

MLX90121

C (0°C to 70°C)

E (-40°C to 85°C)

FR (Lead free SSOP20, 20 9 mils)

FR (Lead free SSOP20, 2 09 mils)

1. Functional Diagram

2. Description

The MLX90121 is an ISO compliant 13.56MHz

RFID transceiver integrated circuit.

The main features include user selectable

modulation depth in write mode, whereas 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 sub-

carrier ASK detection, ensuring fast and clean

data recovery. The limiting output of the log amp

is used for FSK and PSK recovery.

The transmitter uses a built in open drain output

transistor, which can provide up to 250 miliwatts

of RF power to a 50 ohms load with a 5 volts

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.

MLX90121

Attenuation

resistor

Analog

functions

Digital

functions

Impedance

matching

Serial data

interface

The chip is configured with a serial interface. A

synchronization signal is available when the

majority voting is used.

Microcontroller

Digital part contains ASK, FSK (423 / 484kHz)

and

PSK

(847kHz)

decoders

and

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 front-

end, in direct mode.

3901090121

Rev. 007

Page 1 of 26

Data Sheet

Jan-2008

12 3 4 5 6 7...26

中文翻译

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与MLX90121相关器件

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MLX90129	MELEXIS	获取价格	13,56MHz Wireless Sensor Tag
MLX90129_12	MELEXIS	获取价格	13.56MHZ SENSOR TAG / DATALOGGER IC
MLX90129RGOCAA-000RE	MELEXIS	获取价格	13.56MHZ SENSOR TAG / DATALOGGER IC
MLX90129RGOCAA-000TU	MELEXIS	获取价格	13.56MHZ SENSOR TAG / DATALOGGER IC
MLX90129RUCCAA-000WB	MELEXIS	获取价格	13.56MHZ SENSOR TAG / DATALOGGER IC
MLX90129RUSCAA-000WP	MELEXIS	获取价格	13.56MHZ SENSOR TAG / DATALOGGER IC
MLX90131	MELEXIS	获取价格	13.56MHz RFID/NFC Transceiver
MLX90132	MELEXIS	获取价格	13.56MHz RFID / NFC Transceiver
MLX90132RLQAEA-000RE	MELEXIS	获取价格	13.56MHz RFID / NFC Transceiver
MLX90132RLQAEA-000TU	MELEXIS	获取价格	13.56MHz RFID / NFC Transceiver

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