Murata MAGICSTRAP LXMS Series Guía del usuario
Application Guide
Printed Circuit Board
RFID Devices
LXMS Series
www.murataamericas.com/rd
Application Guide
1
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
2
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
3
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
4
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
5
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
6
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
7
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
8
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
9
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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9
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