Melexis MLX90132 User manual

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Features and Benefits
Conforms with ISO/IEC 18092 (NFC)
Conforms with ISO/IEC 14443 A and B,
Conforms with ISO/IEC 15693
Conforms with ISO/IEC 18000-3 mode 1
High speed communication (848kbit/s)
Embedded RF field and TAG detectors
Application Example
NFC enabled car for access and start
Ordering Information
Part Code Temperature Code Package Code Option Code Packing Form Code
MLX90132 R (-40°C to 105°C) LQ (Lead free QFN 5x5 32 leads) AEA-000 RE
MLX90132 R (-40°C to 105°C) LQ (Lead free QFN 5x5 32 leads) AEA-000 TU
General Description
The MLX90132 is a 13.56MHz RFID/NFC transceiver IC
developed by Melexis. The DVK90132 is an assembled
printed circuit board simplifying the evaluation of the
MLX90132 and allowing the development of specific
applications like NFC reader for car access.
The DVK90132 embeds a minimum set of components
around the MLX90132 IC to make it functional as an
NFCIP-2 reader conforms to ISO/IEC14443 (type A and
type B up to 848kbps), ISO/IEC18092 (up to 424kbps) and
ISO/IEC15693 international protocols. The development kit
DVK90132 also features on-PCB printed RFID antennas
with optimized matching network for the maximum RFID
performances.
The DVK90132 is connected to a microcontroller board
based on a STM32F103 ARM CORTEX M3 from the
company STMicroelectronics®. This microcontroller
embeds the required firmware for a stand-alone easy and
quick evaluation of the MLX90132. A Development mode
can also be selected to control the device through a set of
TCL script examples allowing the development of higher
layer applications.
This datasheet has been downloaded fromhttp://www.digchip.com at this page

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Table of Contents
1 DVK90132 GLOBAL DESCRIPTION .............................................................................................3
2 DVK90132 SCHEMATIC & BOM ...................................................................................................4
2.1 SCHEMATICS..................................................................................................................................................4
2.2 BILL OF MATERIALS.........................................................................................................................................6
2.3 DVK90132 PRINTED RFID ANTENNAS............................................................................................................8
3 FIRMWARE OF THE DVK90132....................................................................................................8
4 INSTALLING THE SOFTWARE .....................................................................................................8
4.1 STM32 USB DRIVER......................................................................................................................................8
4.2 TCL SOFTWARE .............................................................................................................................................9
4.2.1 TCL engine: ActiveTcl ...........................................................................................................................9
4.2.2 TCL editor: Ezdit ...................................................................................................................................9
4.2.3 DVK90132 DLL .....................................................................................................................................9
5 GETTING STARTED WITH THE DVK90132................................................................................10
5.1 STANDALONE MODE......................................................................................................................................10
5.2 DEVELOPMENT MODE ...................................................................................................................................11
5.2.1 TCL script examples ...........................................................................................................................11
6 DISCLAIMER ...............................................................................................................................20
7 CONTACT INFORMATION ..........................................................................................................20

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1 DVK90132 global description
The development kit DVK90132 is composed of two boards connected together with a specific PCB
connection.
The first board embeds the MLX90132 NFC/RFID reader IC and the minimum required components to make it
functional as an NFCIP-2 reader conforms with ISO/IEC14443 (type A and type B up to 848kbps),
ISO/IEC18092 (up to 424kbps) and ISO/IEC15693 international protocols. Two on-PCB printed RFID
antennas are available and selected through 0ohm bridge resistors. An optimized matching network is also
available for maximum RFID performances.
The second board forming the DVK90132 is a microcontroller PCB based on a STM32F103 ARM CORTEX
M3 form the company STMicroelectronics®. This microcontroller embeds the required firmware for a stand-
alone easy and quick evaluation of the MLX90132. A Development mode can also be selected to control the
device through a set of TCL script examples allowing the development of higher layer applications. The board
is featuring an LCD displaying information in stand-alone mode and also an on-PCB joystick use for user
selection.
Figure 1: DVK90132 top and bottom views

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2 DVK90132 Schematic & BOM
2.1 Schematics
Figure 2: Schematics MLX90132
Notes:
The driver supply VDD_TX can be changed on the board from +3.3V to +5V (VCC) by disconnecting the
resistor R9 and connecting a 0 ohm resistor in place of R10 (please refer to the schematic portion “Power
supply decoupling”.
It is possible to supply the MLX90132 by an external source by removing the jumpers JP1/JP2 and
plugging the power supply on JP1[2] / TP3 for supplying VDD (resp JP2[2] / TP4 for supplying VDD_TX)
The antenna used can be changed on the board with the jumper resistors R37 to R40. For more
information concerning the on-board PCB trace antenna, please refer to the chapter DVK90132 Printed
RFID antennas below.
The matching network depends on the PCB trace antenna and the VDD_TX to be used. If those values
are changed on the DVK90132, the values of the matching network might have to be recalculated
accordingly. For more information on how to calculate it, please refer to the application note MLX90130/32
antenna design guide available on Melexis SoftDist, in directory MLX90132/MLX90132_Documentation/
MLX90132_Application_notes.
VDC is an output which has to be stabilized externally with the 33pF capacitor C3. The external diode D3
might also be added to connect VDC to VDD, allowing to improve the performance of the Field detection and
TAG detection feature
The user should take care that the device might be potentially supplied over SPI pins and the pin IRQ_IN.
To guarantee a proper POR, the SPI-input might be set in high impedance state by the host MCU and an
external pull-up on IRQ_IN would be connected

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Figure 3: Schematics Microcontroller & Peripherals

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2.2 Bill of materials
The tables below give an overview of all components that compose the development kit DVK90132.
Reference
Value
Description
C1, C6
Not Connected
Antenna matching, EMI filter capacitors
C4
220pF
Antenna matching network, parallel resonance capacitor Cp
C2, C7
180pF
Antenna matching network, serial resonance capacitor Cs
C3
33pF
VDC decoupling capacitor
C5
10pF
Antenna matching network, additional parallel resonance
capacitor Cp
C11, C17
4.7uF
VDD_TX / VDD decoupling capacitor
C12, C18
100nF
VDD_TX / VDD decoupling capacitor
C13, C15
10pF
27.12MHz crystal load capacitors
D3
BAT54
Diode to connect VDC to VDD
L1, L3
0R (shortcut)
Antenna matching, footprint for EMI filter inductors
L2
430nH
50x38mm RFID antenna, 2 turns
L4
BLM18AG601SN1
VDD EMI filter inductor
L6
500nH
20x30mm RFID antenna, 3 turns
L7
Not Connected
Antenna matching, footprint for EMI filter inductors
C34
Not Connected
Antenna matching, footprint for EMI filter capacitors
P2
CON_HEADER_2X5
UART/SPI connector
R2, R7
220R
Antenna matching network, feedback Rx resistors
R5
10k
Pull-up resistor for Vdc linked to the diode D3
R6
10k
Antenna matching network, resonance damping resistor
R9
0R
VDD_TX = 3V bridge resistor
R10
Not Connected
VDD_TX = 5V bridge resistor
R11
4.7k
Pull-up/down resistor SSI_0
R36
Not Connected
R38, R39
0R
Bridge resistors for antenna L2
R37, R40
Not Connected
Bridge resistor for antenna L6
R41
0R
Connect TMS pin to VDD
SPI<->UART
CON_HEADER_1X3
SPI/UART jumper selection
JP1
JUMPER
VDD supply
JP2
JUMPER
VDD_TX supply
U2
MLX90132
MLX90132 RFID/NFC reader IC
X1
NX2520SA 27.12MHz EXS00A-CS05164
27.12 MHz crystal from NDK
Table 1: DVK90132 Bill of materials “Schematics MLX90132”

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Reference
Value
Description
C8, C10
10pF
8MHz crystal load capacitors
C9, C14
22pF
32kHz crystal load capacitors
C16, C19, C20, C21, C22,
C23, C24, C25, C26
100nF
Decoupling capacitors (Ceramic)
C27, C29, C31, C32, C33
10uF
Decoupling capacitors (Tantalum, 20% Tolerance)
C28
10nF
Decoupling capacitor (Ceramic)
C30
100uF
T491T Decoupling capacitor (Tantalum, 20% Tolerance)
D1, D2
LED green/red
LED
L5
BLM18AG601SN1
VDD EMI ferrite
P3
uSD connector
uSD connector
P4
LCD Connector
LCD Connector
P5
CON_HEADER_2X5
UART/SPI connector
P7
CON_HEADER_2X10
JTAG Connector
Q1, Q2
NPN
NPN Bipolar Transistor
R1, R3, R4
4.7k
Thick Film Chip Resistor, 1 Ohm to 2.2M Ohm Range, 5%
Tolerance, 0402 Size, 0.063 W
R8, R22
1k
Rectangular Thick Film Chip Resistor, 10 Ohm to 330k Ohm
Range, 0.1% and 0.5% Tolerance, 0603 Size, 0.063 W
R12, R15, R16, R17, R18,
R20, R23, R25, R26, R27,
R28, R30, R32, R35
10k
Thick Film Chip Resistor, 1 Ohm to 2.2M Ohm Range, 5%
Tolerance, 0402 Size, 0.063 W
R13, R24
10k
Rectangular Thick Film Chip Resistor, 10 Ohm to 330k Ohm
Range, 0.1% and 0.5% Tolerance, 0603 Size, 0.063 W
R14, R19, R21
10
Rectangular Thick Film Chip Resistor, 10 Ohm to 330k Ohm
Range, 0.1% and 0.5% Tolerance, 0603 Size, 0.063 W
R29
47k
Rectangular Thick Film Chip Resistor, 10 Ohm to 330k Ohm
Range, 0.1% and 0.5% Tolerance, 0603 Size, 0.063 W
R31
1.5k
Rectangular Thick Film Chip Resistor, 10 Ohm to 330k Ohm
Range, 0.1% and 0.5% Tolerance, 0603 Size, 0.063 W
R33
0
Rectangular Thick Film Chip Resistor, 10 Ohm to 330k
Ohm Range, 0.1% and 0.5% Tolerance, 0603 Size, 0.063
W
R34
33k
Rectangular Thick Film Chip Resistor, 10 Ohm to 330k Ohm
Range, 0.1% and 0.5% Tolerance, 0603 Size, 0.063 W
S1
SW-3
Switch 2 positions (microcontroller Wake-up)
S2
SW-PB A
Push-Button (Reset)
U1
STM32F103CBT6
STM32 ARM-based 32-bit MCU with 128 Kbytes Flash, 48-
pin LQFP
U3
JOYSTICK ALPS
4 directions + 1 selection buttons
U4
TLV1117
800 mA, Low Voltage, Low Quiescent Current LDO
Regulator, 3-Pin SOT-223
USB-PLUG-A1
CON_USB_MINI_B_90
Connector USB-MINI-B, SMD, Right Angled
Y1
NX5032GA 8MHz S1-2070-5030-10
8MHz Crystal Oscillator from NDK
Y2
32kHz
32kHz Crystal Oscillator
Table 2: DVK90132 Bill of materials “Schematics Microcontroller & Peripherals”
* Components not mounted

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2.3 DVK90132 Printed RFID antennas
Antenna
Outer dim.
Inner dim.
Track width
Dist. Btwn
tracks
Nbr of Turn
Inductor
[nH]
Resistor
[ohm]
L2
1880 x 1340 mils
4475 x 3404 mm
1700 x 1169 mils
4318 x 2969 mm
40 mils
101.16 mm
10 mils
25.4 mm
2
430
0.6
L6
1170 x 790 mils
2972 x 2007 mm
1064 x 684 mils
2703 x 269 mm
20 mils
50.8 mm
10 mils
25.4 mm
3
500
0.2
Table 3: On-PCB printed RFID antennas
3 Firmware of the DVK90132
The embedded firmware of the DVK90132 is available on Melexis SoftDist, with other examples, in the
directory MLX90132/MLX90132_Firmware.
Those examples can easily be opened and recompiled using the free licence KEIL compiler for the
STMicroelectronics ARM microcontroller STM32F103 cortex M3.
The DVK90132 is built with a 20-pin JTAG connector available below the LCD screen. This allows to easily
reprogram the firmware of the DVK90132 using the ST-LINK programmer with the ST_LINK utility software
which can be directly downloaded from the link below. Note that the ST_LINK programmer is not provided with
the DVK90132 but can be easily bought from the link below.
The following procedure should be followed to reprogram the DVK90132:
1. Connect the ST-LINK to the USB of the computer
2. Connect the 20-pin flat cable to the JTAG connector of the DVK90132 (P7 below the LCD screen)
3. Connect the USB of the DVK90132 to the computer to power-up (green LED D2 switched ON)
4. Open the ST_LINK UTILITY firmware
5. Select FILE -> OPEN FILE and choose the required .hex file
6. Select TARGET -> CONNECT
7. Select TARGET -> PROGRAM & VERIFY
8. Press PROGRAM, at the end green text should be displayed in the window below
9. Select TARGET DISCONNECT
Link to Keil Compiler: http://www.keil.com/stmicroelectronics/arm_overview.asp
Link to ST-LINK programmer: http://www.st.com/internet/evalboard/product/219866.jsp
Link to the T_LINK utility: http://www.st.com/internet/evalboard/product/219866.jsp
4 Installing the Software
The following paragraphs describe how to download and install the TCL software and the USB driver.
4.1 STM32 USB driver
The USB drivers are automatically installed and recognized by the operating system when connected to the
user computer; there is no need for a specific driver installation.

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4.2 TCL software
There are several possibilities to interface the DVK90132 and software available to write TCL scripts. The
following paragraphs propose a suite of software which can be downloaded and used for free. The user has to
agree with the respective software license.
4.2.1 TCL engine: ActiveTcl
The software can be downloaded on: http://www.activestate.com/activetcl/downloads, but is also available on
Melexis SoftDist, in directory MLX90132/MLX90132_Software.
Select the version corresponding to your computer OS - for example, the version 8.6.1 for Windows (x86) if
you are working under Windows7 - and install it. This software includes the TCL compiler.
4.2.2 TCL editor: Ezdit
The software (also available on Melexis SoftDist in directory MLX90132/MLX90132_Software) can be
downloaded on: http://code.google.com/p/ezdit/downloads/detail?name=ezdit-windows-0.9.1.zip&can=2&q,
This editor allows to edit, to create and to execute TCL scripts. It can be used without installation. To link the
editor to the TCL engine installed with ActiveTCL (named wish85 or wish86 depending on the version), it is
necessary to do the following:
Select TOOLS and click on run
In the second row write the path to the executable tclsh85.exe or tclsh86.exe and add the command {%F}
with a space in-between
In our example the path is C:/Tcl/bin/tclsh85.exe {%F}
Figure 4: Ezdit TCL editor configuration
4.2.3 DVK90132 DLL
This DLL is used to link the DVK90132 with the TCL scripts. After having downloaded it from Melexis SoftDist
(directory MLX90132/MLX90132_Software) it has to be placed at the root of the D:/ or C:/ drive.
Examples: D:\ strfnfcaplugin.dll or C:\ strfnfcaplugin.dll.
At the beginning of each TCL script the DLL has to be loaded with the following command, specifying the path
of the DLL location:
Examples: load D:// strfnfcaplugin.dll or load C:// strfnfcaplugin.dll
More information about TCL script can be found on Internet. As it is an open source language there are a large
number of dedicated websites such as http://wiki.tcl.tk/.

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5 Getting started with the DVK90132
The DVK90132 allows very quick and easy evaluation of the MLX90132 NFC/RFID reader IC. By simply
connecting the USB port to the user computer, the DVK90132 is supplied and Start-up menu appears. Then
the user simply has to select the mode by moving left/right the Joystick on the board (a blue square shows the
mode currently selected) and press on it.
The communication interface UART or SPI is selected with the switch “SPI <-> UART” at power-up of the
DVK90132. Any change of this jumper after power-up will not have any impact anymore without a
complete reset of the board by removing the USB connection. The selected communication interface is
displayed at bottom-right side of the LCD screen.
Figure 5: Start-up menu (Standalone/Development mode selection when UART is selected)
5.1 Standalone mode
The standalone mode can be used for quick and easy evaluation; the DVK90132 is continuously sensing the
HF field for presence of any ISO/IEC14443 (A and B) and ISO/IEC18092 (Felica) compatible transponders
and displays its unique identifier when found.
Figure 6: Standalone mode, examples of displayed messages

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5.2 Development mode
The development mode allows controlling the MLX90132 through a set of TCL scripts. Examples of such TCL
scripts are available on Melexis SoftDist in directory MLX90132/MLX90132_TCL_Scripts.
This mode requires a USB connection between the microcontroller board and the computer, as well as the
installation of TCL software.
Once the Development mode is selected, the USB connection will be automatically established with the
computer and the following picture will be displayed on the LCD screen.
Figure 7: development mode selected, USB communication successfully established
Note: The USB drivers are automatically installed and recognized by the operating system when connected to
the computer via the USB cable. There is no need for a specific driver installation.
5.2.1 TCL script examples
Once the DVK90132 is connected to the computer, it can be controlled through TCL scripts. To open the
scripts provided on Melexis SoftDist please follow the procedure describes below:
Download the file DVK90132_TCL_Scripts_zip from Melexis SoftDist (available in the directory
MLX90132/MLX90132_TCL_Scripts) and unzip its whole content in a new folder called:
DVK90132_TCL_Scripts.
Open the ezdit editor
Go to “Project” -> “Open project”
Select the folder “DVK90132” in the folder “DVK90132_TCL_Scripts”
All the scripts will appear in the window of Ezdit. Simply double click on the script to open it.
The following chapters show some examples of TCL scripts provided with the DVK90132:
Figure 8: Script examples provided with the DVK90132

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5.2.1.1 Idn
The command “Idn” is used to get the identification string of the MLX90132. This basic command is defined in
the MLX90132 plug-in DLL (please refer to chapter
DVK90132 global description DVK90132 DLL ).
Script example and MLX90132 response:
Script run:
Note: The Identification string of the device may differ from the example illustrated above.

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5.2.1.2 FieldOff
The command “FieldOff” is used to switch off the electromagnetic field generated by the MLX90132
(corresponds to a Protocol select command with parameters to 0). This basic command is defined in the
MLX90132 plug-in DLL (please refer to chapter DVK90132 DLL)
Script example and MLX90132 response:
Script run:

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5.2.1.3 Select
The command “Select” is used to select the RFID communication mode of the MLX90132. The parameters are
described in the MLX90132 datasheet and this basic command is defined in the MLX90132 plug-in DLL
(please refer to chapter DVK90132 DLL)
Script example and MLX90132 response:
Script run:

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5.2.1.4 SendReceive
The command “SendReceive” is used to manage the RFID communication in Reader mode. This command
sends a request to the TAG or Target and gets the corresponding answer from the TAG or Target. The
“SendReceive” command has to be used after the RFID protocol is selected with the command “Select”. The
parameters are described in the MLX90132 datasheet and this basic command is defined in the MLX90132
plug-in DLL (please refer to chapter DVK90132 DLL).
Script example and MLX90132 response:
Script run:

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5.2.1.5 TAG detector example
This script provides an example on how to use the TAG detector function of the MLX90132. For more
information, please refer to the application note MLX90130/32 Tag Detector available on Melexis SoftDist, in
directory MLX90132/MLX90132_Documentation/MLX90132_Application_notes.
This script allows the user to define the parameters of the TAG detector and then performs the calibration to
output the two threshold levels. After calibration is performed, the MLX90132 is programmed with those two
thresholds and the system is waiting during approximately 10s. The message “a TAG was detected” is
displayed if a TAG –or any other object able to modify the near environment of the DVK90132 antenna - is
detected during the next 10s.
Script example and MLX90132 response:
Script run:

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5.2.1.6 ISO/IEC14443 REQA and REQB requests
In the following example, the MLX90132 is configured to send commands requests compatible with
ISO/IEC14443 type A and type B. These commands allow getting the UID of the compatible TAGs present in
the field.
Note: ISO/IEC14443 international standard is available on the ISO/IEC web-site www.iso.org.
Script run:

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5.2.1.7 Basic door access
This example describes the basic script to implement a door access with a card or an NFC compliant mobile
phone. The UID of the golden card/NFC phone is stored in the script. The script runs a continuous inventory
and checks the answer with the golden UID. If it matches, a message “door open” is displayed otherwise the
message “door close” remains.
Script run:
No valid card placed in front of DVK90132 antenna
Valid TAG in front of DVK90132 antenna (Golden
key detected)

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The following picture shows when a NFC compliant mobile phone with a valid key is placed on the DVK90132
antenna, the golden UID is recognized and displayed.
Figure 9: NFC enabled car for access and start

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6 Disclaimer
Devices sold by Melexis are covered by the warranty and patent indemnification provisions appearing in its
Term of Sale. Melexis makes no warranty, express, statutory, implied, or by description regarding the
information set forth herein or regarding the freedom of the described devices from patent infringement.
Melexis reserves the right to change specifications and prices at any time and without notice. Therefore, prior
to designing this product into a system, it is necessary to check with Melexis for current information. This
product is intended for use in normal commercial applications. Applications requiring extended temperature
range, unusual environmental requirements, or high reliability applications, such as military, medical life-
support or life-sustaining equipment are specifically not recommended without additional processing by
Melexis for each application.
The information furnished by Melexis is believed to be correct and accurate. However, Melexis shall not be
liable to recipient or any third party for any damages, including but not limited to personal injury, property
damage, loss of profits, loss of use, interrupt of business or indirect, special incidental or consequential
damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical
data herein. No obligation or liability to recipient or any third party shall arise or flow out of Melexis’ rendering
of technical or other services.
© 2012 Melexis NV. All rights reserved.
7 Contact Information
For the latest version of this document, go to our website at:
www.melexis.com
Or for additional information contact Melexis Direct:
Europe, Africa, Asia: America:
Phone: [phone] Phone: [phone]
E-mail: [e-mail] E-mail: s[email protected]
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