MLX90132 13.56MHz RFID/NFC Reader IC · 2016-06-09 · NFC enabled car for access and start Car access: The user is positioning the NFC phone/card close to the door handle, the car

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MLX90132 13.56MHz RFID/NFC Reader IC


Target Market & Application

Target Market: Automotive

Target Application:

NFC enabled car for access and start (Car Fleets / Car Sharing …)

Description:

13.56MHz RFID/NFC interface with embedded dedicated digital for multi-protocols handling


NFC enabled car for access and start

Car access: The user is positioning the NFC

phone/card close to the door handle, the car is interrogating the NFC phone/card and opens it if the correct key/ID is recognized

Start: When in the car, the user puts the NFC

phone/card in a dedicated zone. When the Start button is pressed, the engine is started if the correct key/ID is recognized

Download of settings The specific settings of the User stored

in the NFC phone/card is downloaded (e.g. position of seats, mirrors …).

Some information, like Milage or Fuel can also be charged into the NFC phone/card for further


Block Diagram

Antenna Matching Network

MCU Interface

27.12MHz external crystal


Main Features

Multi-norm high speed NFCIP2 Reader NFC: ISO/IEC18092 Active & Passive (up to 424kbps) PCD: ISO/IEC14443 A&B (up to 848kbps) VCD: ISO/IEC15693 TAG Emulation: ISO/IEC18092 (NFC) and ISO/IEC14443A&B

Embedded decoding/encoding of low protocol layers

Symbol encoder/decoder (Modified Miller, NRZ, Manchester , PPM…) Frame encoder/decoder (SOF, EOF, CRC, Parity, Start/Stop bits …)

Embedded TAG/Field detection functions

Very low-power modes with automatic wake-up on

defined conditions (e.g. Field/TAG detected, Timeout …)


Main Features (Suite)

SPI/UART communication interfaces MCU is the master of the communication SPI: NSS, SCK, MISO, MOSI, IRQ_IN, IRQ_OUT UART: UART_TX, UART_RX

Dedicated set of commands to address the MLX90132

Idle : Set the device in low-power mode with wake-up conditions Protocol Select : Select the HF wireless protocol to be used SendRecv: Send command using selected HF protocol and receive

corresponding response Listen/Send : Receive and send command in TAG emulation mode

Registers of the MLX90132 automatically configured

when the HF protocol is selected with “Protocol Select”


Main Features (end)

Very low external component counts

Operating power supply from 2.7 to 5.5 Volts

Operating temperature range from -40 up to 105°C

Automotive qualified

QFN32 5x5mm package


Operating power modes

ReadyCommand

“PROTOCOL SELECT”

Note: Command “Protocol Select, field OFF” is used to return to Ready state

Com

man

d “ID

LE”

HibernateWake-up events:- Low pulse IRQ_IN

Power-upStart-up events:

- Low pulse IRQ_IN

Start-u

p

SleepWake-up events:- Low pulse IRQ_IN

- Low pulse SPI_NSS- Timer

- Field detectorCom

man

d “ID

LE”

Wak

e-up

TAG detectorWake-up events:- Low pulse IRQ_IN

- Low pulse SPI_NSS- Timer

- TAG detector

Comm

and “IDLE”

Wake-up

IDLE

ACTIVE

Supply OFFPOR

Reader/TAG emulation

Wake-u

p

START


Internal Available Clock Sources

HFO : High Frequency Oscillator External XTAL frequency divided by 2 Typically equal to 13.56MHz Use in ACTIVE mode TX drivers frequency directly linked to HFO

LFO : Low Frequency Oscillator Embedded RC oscillator Typically equal to 32kHz (+/-30% over full T range) Use in Sleep and TAG detector states

Clk_REC : Clock recovered from the HF field Use in TAG emulation state Only available in SPI mode


Automatic TAG detection feature to reduce power consumption

Short impulses of HF field are generated to detect amplitude variations provoked by inductive coupling

Function fully programmable depending on the environment (e.g. number of HF pulses, waiting time btwn 2 poll, timeout…)

MLX90132 automatically wake-up the external host MCU on TAG detected event


Typical Application Schematic

VCC

MLX90132N

C

NC

NC

NC

NC

NC

NC

NC

VDD

IRQIN

VDC

RX1

RX2

GND_RX

NC

NC

GND_DIG

XIN

XOUT

GND_TX

VDD_TX

TX1

TX2

NCIR

QO

UT

SS

MIS

O

MO

SI

SC

K

SS

I_0

SS

I_1

TM

S

UA

RT

TX/IR

QO

UT

VC

CApplication

Microcontroller

27.12MHz

Ant

enna

VC

C_T

X

VCC


Customer Support

2) Development kit DVK90132

1) Samples

4) Documentations (Data Sheets, User Manuals, Application Notes)

3) Direct Design Support (PCB design, Gerber files etc.)

QFN32 5x5


Product Status

Samples Samples available on request

Datasheet

Available on MLX web-site

EVB/DVK90132 Available

Firmware examples

General purpose reader, provided with DVK90132 ISO/IEC18092 TAG emulation available ISO/IEC14443A/B TAG emulation, under development

PPAP

Available


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Documents

MLX90132 13.56MHz RFID/NFC Reader IC · 2016-06-09 · NFC enabled car for access and start Car access: The user is positioning the NFC phone/card close to the door handle, the car