MLX90121 Просмотр технического описания (PDF) - Melexis Microelectronic Systems

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производитель

MLX90121

13.56MHz RFID Transceiver

Melexis Microelectronic Systems  

9. Block Diagram

MLX90121

13.56MHz RFID Transceiver

RX

PA

TX

XTAL

AM

FM

FSK

Decoder

PSK

Decoder

Digital

Majority

Voting

Programmable

Encoder

DOUT

DIN

RMOD

13.56MHz

XBUF

10. Digital Interface

The MLX90121 is driven by four signals: MODE and RTB pins are used to select the operating mode and

DIN and CK pins are used to configure the chip and to transmit data.

The MLX90121 has two signal outputs. DOUT contains the decoded response of the transponder and

DSYNC is used as a synchronization output by the microcontroller.

Pin Name

MODE

RTB

DIN

CK

DOUT

DSYNC

I/O Function

I 0 = Configuration Mode, 1 = Communication Mode

I 0 = Transmission Mode, 1 = Reception Mode

I Data Input for Transmission or Configuration

I Clock and Trigger

O Data Output from Reception or Configuration

O Data Synchronization Clock for Transmission or Reception

Function Summary

MODE

0

1

0

1

RTB Function

0

Configuration

0

Transmission

1

Reserved (*)

1

Reception

(*) the reserved mode is for manufacturing purpose only and should not be applied by the user.

3901090121

Rev. 009

Page 8 of 26

Data Sheet

Sept.-2009

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