MLX90132 Datasheet, PDF (2/44 Pages) Melexis Microelectronic Systems – 13.56MHz RFID / NFC Transceiver

MLX90132
13.56MHz RFID / NFC Transceiver
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
3901090132
Rev. 009
Page 2 of 44
Jan-2014