Murata LXMS31ACNA-009 Printed circuit board rfid device Datasheet

Application Guide
Printed Circuit Board
RFID Devices
LXMS Series
www.murataamericas.com/rfid
Application Guide
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.
Features
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Compact Size (3.2 x 1.6 x 0.7mm)
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4 to 5 meter read range is possible
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Operating Frequency – 860-960MHz
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Utilizes ground as PCB ground as antenna
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512 bits user memory
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Reference antenna designs available
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EPC Global Gen2 / ISO 18000-6C compatible
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ESD protection up to >2kV
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Secure with long data retention
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Fully RoHS compliant
MAGICSTRAP® Use Cases
PCB Traceability
Warranty Tracking
Inventory Control
Product Authenticity
Firmware Revision Tracking
Applications
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IT – PC, Server, Modem, Mobile phone
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Home appliances – stove, refrigerator
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Consumer – STB, DTV, DVD, audio
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EMS – value added services
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Automotive – instrument panel, audio...
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Specialty applications – durable tags
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Industry – smart meters, inverters
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Gaming – portable, stationary
1
Application Guide
Product Lineup
Part Number
Type *
LXMS31ACNA-009
LXMS31ACNA-010
LXMS31ACNA-011
LXMS31ACNA-012
LXMS31ACMD-140
LXMS31ACMD-141
LXMS31ACMD-142
LXMS31ACMD-143
LXMS31ACMD-144
1
2
3
4
0
1
2
3
4
IC
NXP
G2XM
EPC
User Memory
TID
up to 240bits
512bits
64bits
Op Temp
-40°C to +85°C
Impinj
Monza4QT
up to 128bits
512bits
64bits
* Type refers to the impedance value and recommended antenna reference design
Part Number Breakdown
LXMS
31
A
C
AC
-009
Product Series
Serial No.
IC: NA = NXP G2XM
MD = Monza4QT
Size: 3.2 x 2.5mm
Electrode Code: A = External
Carrier: C = T&R
Dimensions (mm)
Mark
L
W
T
a
2
Dimensions
3.2 ± 0.2
1.6 ± 0.2
0.7 max.
1.25 ± 0.1
Mark
b1
b2
d
-
Dimensions
0.18 ± 0.18
0.18 ± 0.18
0.7 ± 0.1
-
Application Guide
MAGICSTRAP® Block Diagram
Integrated Circuit
Matching
Circuit
Analog
Front End
Controller
Memory
Recommended Land Pattern Design
Recommended land pattern
(SMT process)
Recommended land pattern
(adhesive attachment)
3
Application Guide
Electrical Parameters
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Frequency Range: 865 – 955MHz
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Minimum operating power: -8dBm
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Electrical characteristics at minimum operating power (Ta=25C, unit: Ω)
MAGICSTRAP®
LXMS31ACNA-009 LXMS31ACNA-010 LXMS31ACNA-011 LXMS31ACNA-012
LXMS31ACMD-140
P/N
LXMS31ACMD-141 LXMS31ACMD-142 LXMS31ACMD-143 LXMS31ACMD-144
Parameter
@866.6MHz
Impedance
Value
@915.0MHz
@953.0MHz
R
50
15
12
25
80
X
0
-45
-107
-200
-405
R
50
25
12
25
80
X
0
-45
-107
-200
-420
R
50
30
9
20
60
X
0
-48
-105
-195
-425
Read Range
4W EIRP @ 915MHz
Note: distances measured with 4W EIRP reader, 6dBi circularly polarized antenna, at 915 MHz; MAGICSTRAP® using NXP G2XL/M.
4
Application Guide
Reference Antenna Design and Performance
Type 1
Directivity
Actual Read Range
PCB Size
LxW
20 x 6cm
14 x 4cm
10 x 4cm
6 x 4cm
USA
(m)
0.5
1.0
0.7
0.1
Japan
(m)
0.4
0.8
0.5
0.1
PCB Size
LxW
20 x 6cm
14 x 4cm
10 x 4cm
6 x 4cm
30dBm, 6dB1 (4W EIRP) w/circularly polarized
wave
*Reader/Writer: CSL-461
** 2mm read range is available with loop antenna
USA
(cm)
3.0
10.0
**
**
10dBm, 6dB1 (40mW EIRP)
w/linearly polarized wave
Read Range (m) by Freq (MHz)
Simulation according to min. operating power
5
Japan
(cm)
1.0
0.8
**
**
Application Guide
Reference Antenna Design and Performance
Type 2
Directivity
Actual Read Range
PCB Size
LxW
20 x 6cm
14 x 4cm
10 x 4cm
6 x 4cm
USA
(m)
1.4
2.5
1.6
0.6
Japan
(m)
1.1
2.0
1.6
0.5
PCB Size
LxW
20 x 6cm
14 x 4cm
10 x 4cm
6 x 4cm
30dBm, 6dB1 (4W EIRP) w/circularly polarized
wave
*Reader/Writer: CSL-461
** 2mm read range is available with loop antenna
USA
(cm)
5
20
5
**
10dBm, 6dB1 (40mW EIRP)
w/linearly polarized wave
Read Range (m) by Freq (MHz)
Simulation according to min. operating power
6
Japan
(cm)
3
10
10
**
Application Guide
Reference Antenna Design and Performance
Type 3
Directivity
Actual Read Range
PCB Size
LxW
20 x 6cm
14 x 4cm
10 x 4cm
6 x 4cm
USA
(m)
3.2
5.0
3.6
1.4
Japan
(m)
2.6
4.3
3.6
1.4
PCB Size
LxW
20 x 6cm
14 x 4cm
10 x 4cm
6 x 4cm
30dBm, 6dB1 (4W EIRP) w/circularly polarized
wave
*Reader/Writer: CSL-461
** 2mm read range is available with loop antenna
USA
(cm)
40
60
40
15
10dBm, 6dB1 (40mW EIRP)
w/linearly polarized wave
Read Range (m) by Freq (MHz)
Simulation according to min. operating power
7
Japan
(cm)
30
45
30
15
Application Guide
Reference Antenna Design and Performance
Type 4
Directivity
Actual Read Range
PCB Size
LxW
20 x6 cm
14 x 4cm
10 x 4cm
6 x 4cm
USA
(m)
5.0
5.0
5.0
4.6
Japan
(m)
3.0
3.0
3.0
3.5
PCB Size
LxW
20 x 6cm
14 x 4cm
10 x 4cm
6 x 4cm
30dBm, 6dB1 (4W EIRP) w/circularly polarized
wave
*Reader/Writer: CSL-461
** 2mm read range is available with loop antenna
USA
(cm)
40
45
50
50
10dBm, 6dB1 (40mW EIRP)
w/linearly polarized wave
Read Range (m) by Freq (MHz)
Simulation according to min. operating power
8
Japan
(cm)
20
30
30
40
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.
Length “X” (cm)
5
2
1
Read Range (m)
3.6
2.5
1.6
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.
Top PCB Layer (antenna interface)
Other Layers
Acceptable board designs
Unacceptable board designs
9
Application Guide
PCB Design Rules to Maximize Read Range
3 – Metal enclosure under printed circuit board:
When the PCB is in close proximity to the metal enclosure, sensitivity is reduced. Removing material directly under the
MAGICSTRAP® antenna pattern will greatly improve sensitivity.
4 – Antenna location on PCB
Location of the PCB antenna should be located closest to the edge of the PCB, as shown below in dark green. Variations of
ideal design are also acceptable.
Ideal antenna location
Variations of antenna design
Indentation
Multi layer antenna
using via hole
via
copper on another layer
10
Application Guide
Prototyping using MAGICSTRAP®
Select board location
for MAGICSTRAP® and remove
resist material
Select one of Murata’s Mini-PCB
prototype boards based on desired
read range and available board space
Solder the Mini-PCB prototype
board, verify functionality and
performance using reader / writer
no
Good
enough?
ok
Incorporate reference design and
produce PCB
11
Head Office
1-10-1, Higashi Kotari 1-chome
Nagaokakyo-shi, Kyoto
617-8555, Japan
Phone: 81-75-951-9111
International Division
3-29-12, Shibuya 3-chome,
Shibuya-ku, Tokyo
150-0002 Japan
Phone: 81-3-5469-6123
Murata Americas
Murata Electronics N.A., Inc. (Regional HQ)
2200 Lake Park Drive
Smyrna, GA 30080-7604, USA.
Phone: 1-770-436-1300
Fax: 1-770-436-3030
For additional information visit:
www.murataamericas.com/rfid
Murata (China) Investment Co., Ltd.
Murata Europe
Taiwan Murata Electronics Co., Ltd.
Murata Electronics Singapore (Pte.) Ltd.
Lane 318 Yonghe Road
Zhabei District, Shanghai 200072, China
Phone: 86-21-3205-4616
Fax: 86-21-3205-4617
No 225 Chung - Chin Road, Taichung, Taiwan
Phone: 886-4-2425-4151
© April 2, 2012 Murata Americas
Murata Electronics Europe B.V. (Regional HQ)
Daalmeerstraat 4, 2131HC Hoofddorp
The Netherlands
Phone: +31-(0)23-5698360
Fax: +31-(0)23-5698361
200 Yishun Avenue 7
Singapore, 768927
Tel: 65-6758-4233
Fax: 65-6758-2026
www.murataamericas.com/rfid
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