MLX90109CDC-AAA-000-TU(2012) 데이터 시트보기 (PDF) - Melexis Microelectronic Systems

부품명

상세내역

제조사

MLX90109CDC-AAA-000-TU
(Rev.:2012)

125kHz RFID Transceiver

Melexis Microelectronic Systems  

MLX90109

125kHz RFID Transceiver

Table of Contents

1 Functional diagram ................................................................................................................................................................................ 2

2 Description ............................................................................................................................................................................................ 2

3 Maximum ratings ................................................................................................................................................................................... 4

4 Pad definitions and descriptions ............................................................................................................................................................ 4

5 MLX90109 Electrical Specifications ....................................................................................................................................................... 5

6 Block Diagram ....................................................................................................................................................................................... 6

7 General Description ............................................................................................................................................................................... 6

7.1 Loop Gain Oscillator....................................................................................................................................................................... 6

7.2 Peak Detector ................................................................................................................................................................................ 6

7.3 Band-Pass Filter............................................................................................................................................................................. 6

7.4 Digital demodulator ........................................................................................................................................................................ 7

7.5 Antenna voltage definition .............................................................................................................................................................. 7

7.6 Power Down mode ......................................................................................................................................................................... 7

7.7 Write operation............................................................................................................................................................................... 7

8 System design parameters .................................................................................................................................................................... 8

8.1 Auto start-up condition.................................................................................................................................................................... 8

8.2 Antenna current.............................................................................................................................................................................. 8

8.3 Antenna Impedance ....................................................................................................................................................................... 9

9 Typical configuration: READ ONLY...................................................................................................................................................... 10

9.1 Application diagram...................................................................................................................................................................... 10

9.2 Absolute minimum schematic ....................................................................................................................................................... 10

9.3 Power consumption...................................................................................................................................................................... 11

9.4 Noise cancellation ........................................................................................................................................................................ 11

9.5 Integrated decoding...................................................................................................................................................................... 11

9.6 Close coupling.............................................................................................................................................................................. 12

10 Typical configuration: READ/WRITE ON/OFF keying (FDX-B100)..................................................................................................... 12

10.1 Application diagram .................................................................................................................................................................... 12

11 Standard information regarding manufacturability of Melexis products with different soldering processes .......................................... 13

12 ESD Precautions ............................................................................................................................................................................... 13

13 FAQ................................................................................................................................................................................................... 14

13.1 Is it possible to make proportional modulation (depth less than 100%) with the MLX90109? ...................................................... 14

13.2 How should I read data information from a transponder up to 15cm? ......................................................................................... 14

13.3 Is it possible to increase the output power of the MLX90109 transceiver? .................................................................................. 14

13.4 Are there any specific coils available for the MLX90109 transceiver? ......................................................................................... 14

13.5 What are the recommended pull-up values on DATA and CLOCK pins? .................................................................................... 14

14 Package Information .......................................................................................................................................................................... 15

14.1 Plastic SO8 ................................................................................................................................................................................ 15

15 Disclaimer.......................................................................................................................................................................................... 16

3901090109

Rev 011

Page 3 of 16

Data Sheet

Jun/12

Share Link: