Murata MAGICSTRAP LXMS Series Benutzerhandbuch

Application Guide

Printed Circuit Board

RFID Devices

LXMS Series

www.murataamericas.com/rd

Application Guide

Features

Applications

MAGICSTRAP® Use Cases

 Compact Size (3.2 x 1.6 x 0.7mm)

 Operating Frequency – 860-960MHz

 512 bits user memory

 EPC Global Gen2 / ISO 18000-6C compatible

 Secure with long data retention

 4 to 5 meter read range is possible

 Utilizes ground as PCB ground as antenna

 Reference antenna designs available

 ESD protection up to >2kV

 Fully RoHS compliant

 IT – PC, Server, Modem, Mobile phone

 Consumer – STB, DTV, DVD, audio

 Automotive – instrument panel, audio...

 Industry – smart meters, inverters

 Home appliances – stove, refrigerator

 EMS – value added services

 Specialty applications – durable tags

 Gaming – portable, stationary

Murata’s MAGICSTRAP® is the latest in UHF RFID chip

development, designed to be placed on the printed circuit

board (PCB). The integrated module eliminates many of the

frustrations previously encountered by design engineers

looking to incorporate RFID into their project.

By following some basic and simple guidelines, the antenna

is designed into the PCB’s ground plane. This represents a

permanent and cost eﬀective antenna solution. Once mounted,

information can be stored and retrieved on MAGICSTRAP® using

any EPCglobal Gen2 / ISO 18000-6C compatible UHF Reader/

Writer.

PCB Traceability

Product Authenticity

Inventory Control

Firmware Revision Tracking

Warranty Tracking

Application Guide

Product Lineup

Part Number Breakdown

Dimensions (mm)

Part Number Type * IC EPC User Memory TID Op Temp

LXMS31ACNA-009 1

NXP

G2XM up to 240bits 512bits 64bits

-40°C to +85°C

LXMS31ACNA-010 2

LXMS31ACNA-011 3

LXMS31ACNA-012 4

LXMS31ACMD-140 0

Impinj

Monza4QT up to 128bits 512bits 64bits

LXMS31ACMD-141 1

LXMS31ACMD-142 2

LXMS31ACMD-143 3

LXMS31ACMD-144 4

* Type refers to the impedance value and recommended antenna reference design

Product Series

Size: 3.2 x 2.5mm

Electrode Code: A = External

Serial No.

IC: NA = NXP G2XM

MD = Monza4QT

Carrier: C = T&R

LXMS 31 AC

A C -009

Mark Dimensions Mark Dimensions

L 3.2 ± 0.2 b1 0.18 ± 0.18

W 1.6 ± 0.2 b2 0.18 ± 0.18

T 0.7 max. d 0.7 ± 0.1

a 1.25 ± 0.1 - -

Application Guide

Recommended Land Pattern Design

MAGICSTRAP® Block Diagram

Integrated Circuit

MemoryController

Analog

Front End

Matching

Circuit

Recommended land pattern

(SMT process)

Recommended land pattern

(adhesive attachment)

Application Guide

Electrical Parameters

Read Range

MAGICSTRAP®

P/N LXMS31ACMD-140 LXMS31ACNA-009

LXMS31ACMD-141

LXMS31ACNA-010

LXMS31ACMD-142

LXMS31ACNA-011

LXMS31ACMD-143

LXMS31ACNA-012

LXMS31ACMD-144

Impedance

Value

@866.6MHz R 50 15 12 25 80

X 0 -45 -107 -200 -405

@915.0MHz R 50 25 12 25 80

X 0 -45 -107 -200 -420

@953.0MHz R 50 30 9 20 60

X 0 -48 -105 -195 -425

 Frequency Range: 865 – 955MHz

 Minimum operating power: -8dBm

 Electrical characteristics at minimum operating power (Ta=25C, unit: Ω)

Parameter

4W EIRP @ 915MHz

Note: distances measured with 4W EIRP reader, 6dBi circularly polarized antenna, at 915 MHz; MAGICSTRAP® using NXP G2XL/M.

Application Guide

Reference Antenna Design and Performance

Type 1

Actual Read Range

Read Range (m) by Freq (MHz)

Directivity

Simulation according to min. operating power

PCB Size USA Japan PCB Size USA Japan

L x W (m) (m) L x W (cm) (cm)

20 x 6cm 0.5 0.4 20 x 6cm 3.0 1.0

14 x 4cm 1.0 0.8 14 x 4cm 10.0 0.8

10 x 4cm 0.7 0.5 10 x 4cm ** **

6 x 4cm 0.1 0.1 6 x 4cm ** **

30dBm, 6dB1 (4W EIRP) w/circularly polarized

wave

*Reader/Writer: CSL-461

** 2mm read range is available with loop antenna

10dBm, 6dB1 (40mW EIRP)

w/linearly polarized wave

Application Guide

Reference Antenna Design and Performance

Type 2

Actual Read Range

Read Range (m) by Freq (MHz)

Directivity

Simulation according to min. operating power

PCB Size USA Japan PCB Size USA Japan

L x W (m) (m) L x W (cm) (cm)

20 x 6cm 1.4 1.1 20 x 6cm 5 3

14 x 4cm 2.5 2.0 14 x 4cm 20 10

10 x 4cm 1.6 1.6 10 x 4cm 5 10

6 x 4cm 0.6 0.5 6 x 4cm ** **

30dBm, 6dB1 (4W EIRP) w/circularly polarized

wave

*Reader/Writer: CSL-461

** 2mm read range is available with loop antenna

10dBm, 6dB1 (40mW EIRP)

w/linearly polarized wave

Application Guide

Reference Antenna Design and Performance

Type 3

Actual Read Range

Read Range (m) by Freq (MHz)

Directivity

Simulation according to min. operating power

PCB Size USA Japan PCB Size USA Japan

L x W (m) (m) L x W (cm) (cm)

20 x 6cm 3.2 2.6 20 x 6cm 40 30

14 x 4cm 5.0 4.3 14 x 4cm 60 45

10 x 4cm 3.6 3.6 10 x 4cm 40 30

6 x 4cm 1.4 1.4 6 x 4cm 15 15

30dBm, 6dB1 (4W EIRP) w/circularly polarized

wave

*Reader/Writer: CSL-461

** 2mm read range is available with loop antenna

10dBm, 6dB1 (40mW EIRP)

w/linearly polarized wave

Application Guide

Reference Antenna Design and Performance

Type 4

Actual Read Range

Read Range (m) by Freq (MHz)

Directivity

Simulation according to min. operating power

PCB Size USA Japan PCB Size USA Japan

L x W (m) (m) L x W (cm) (cm)

20 x6 cm 5.0 3.0 20 x 6cm 40 20

14 x 4cm 5.0 3.0 14 x 4cm 45 30

10 x 4cm 5.0 3.0 10 x 4cm 50 30

6 x 4cm 4.6 3.5 6 x 4cm 50 40

30dBm, 6dB1 (4W EIRP) w/circularly polarized

wave

*Reader/Writer: CSL-461

** 2mm read range is available with loop antenna

10dBm, 6dB1 (40mW EIRP)

w/linearly polarized wave

Application Guide

PCB Design Rules to Maximize Read Range

1 – Position of MAGICSTRAP® on PCB:

MAGICSTRAP® should be centered on the long side of the PCB to maximize read range.The following illustrates the relationship

between “X” length and read range using Type-3 board design.

2 – Eliminate conductive material under MAGICSTRAP®:

All layers beneath MAGICSTRAP® should be free of conductive material. This area should be equal or larger then the top layer

antenna design to maximize read range. The example below is using Type 3 design.

Length “X” (cm) Read Range (m)

5 3.6

2 2.5

1 1.6

Top PCB Layer (antenna interface)

Other Layers

Acceptableboard designs

Unacceptable board designs

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