MLX90132

13.56MHz RFID / NFC Transceiver

3901090132

Page 2 of 44

Jan-2014

Rev. 009

Table of Contents

1 Pin and signal descriptions...............................................................................................................................3

2 General Description..........................................................................................................................................4

3 Power Management and Operating modes......................................................................................................6

4 Start-up sequence ............................................................................................................................................8

5 Communication Interface & protocol ................................................................................................................9

5.1 UART .........................................................................................................................................................9

5.2 SPI ...........................................................................................................................................................10

5.2.1 Polling mode......................................................................................................................................10

5.2.2 IRQ mode ..........................................................................................................................................11

6 Commands .....................................................................................................................................................12

6.1 Command format .....................................................................................................................................12

6.2 List of commands.....................................................................................................................................12

6.3 IDN command (0x01)...............................................................................................................................13

6.4 Protocol select command (0x02) .............................................................................................................13

6.5 PollField command (0x03) .......................................................................................................................18

6.6 SendRecv command (0x04) ....................................................................................................................19

6.6.1 Support of extended frames..............................................................................................................21

6.6.2 List of Error codes .............................................................................................................................22

6.7 Listen command (0x05) ...........................................................................................................................23

6.8 Send command (0x06).............................................................................................................................25

6.9 Idle command (0x07) ...............................................................................................................................26

6.10 BaudRate command (0x0A) ..................................................................................................................28

6.11 SubFreqRes command (0x0B) ..............................................................................................................28

6.12 AcFilter command (0x0D) ......................................................................................................................29

7 Modifying internal settings for optimal performances .....................................................................................30

7.1.1 Example: How to modify the ARC_B register ...................................................................................30

7.1.2 Example how to read back WUFlags content ...................................................................................31

8 Tag Detector...................................................................................................................................................32

8.1 Operating Principle ..................................................................................................................................32

8.2 Calibration procedure...............................................................................................................................33

9 Field Detector .................................................................................................................................................33

10 Electromagnetic support (EMD) ...................................................................................................................34

11 Application Information .................................................................................................................................37

11.1 External Antenna network......................................................................................................................37

11.2 Application schematic ............................................................................................................................37

12 Electrical Specifications................................................................................................................................38

12.1 Absolute Maximum Ratings ...................................................................................................................38

12.2 DC Characteristics .................................................................................................................................38

12.3 Power Consumption Characteristics......................................................................................................38

12.4 RF Characteristics .................................................................................................................................39

12.5 SPI Characteristics ................................................................................................................................40

12.6 Oscillator Characteristics .......................................................................................................................41

14 ESD Precautions ..........................................................................................................................................42

15 Standard information regarding manufacturability of Melexis products with different soldering processes 42

16 Package Information.....................................................................................................................................43

17 Disclaimer.....................................................................................................................................................44

18 Contact Information ......................................................................................................................................44