an attempt to minimize the design-in time of RFID into any
application to less then 1 week, regardless of the users
previous experience with RFID.
Given its small size it can easily be incorporated into any
existing system or into small items. Even though it does
not attempt to replace bar codes, it may well offer the next
best alternative up to date using mature, robust and easy
to use technology for people wanting to leverage the
advantages that RFID offers over bar code.
It can be used with any standard reader equipment;
however it is ideally suited for use in combination with the
MLX90109 in proximity read only or read-write
applications. A full fledged case study is available as part
of the EVB90109 evaluation board documentation.
The sticky label can be applied to any flat surface using
standard label dispensing machines, whilst the PET disk
can easily be inserted or even overmoulded.
Application markets are mainly item management
applications needing a low power and low cost (handheld)
reader, with minimum operating distance requirements.
For these applications the 125kHz range is better suited
than higher frequency bands like 13.56MHz, 900MHz or
* Product innovators may want to protect their heigh R&D
products from cheap copies that might destroy the market.
* Health care companies may want to overcome potential
human errors by the consumer in an attempt to minimize
method to reduce theft.
Radio Frequency Identification
Short distance. Typically cm range
Transceiver that controls the antenna and that allows a microcontroller to communicate with the transponder.
labels. This allows reconfiguring the transponder according to the applications needs, and store the data in its
the operating distance. Increasing the Qtag improves the operating distance, but requires much better
production control of the SRF of the transponder, and is therefore more expensive. MLX90127 has been
developed for high volume lowest cost applications. The parameters have been choosen accordingly.
continuously revolving code.
conditions for extended periods may affect device reliability.
MLX90124: Transponder IC datasheet
MLX90109: Reader IC datasheet
EVB90109: Reader IC evaluation board data sheet
and case study for MLX90127 and MLX90109 chipset.
PRFID-01: MLX90127 production programmer
to 125kHz. Spread on the frequency is +/-6kHz.
Given the relatively low quality factor (Qant ~ 9) the
performance variation over the full frequency range is
Coil thickness : 0.35mm
has 64bit E2PROM on board, offering to store a 48bit
The MLX90108 contains 64 bits divided in five groups
has 128bit E2PROM on board, offering to store up to
88bits of data.
Header (same as ISO11784):
Data integrity is guaranteed via two 8bit CRC checks
on the stored data.
DATA_5. Remark that this covers the first
64bit of the E2PROM.
remaining DATA_6 to DATA_10.
of the E2PROM.
The CRC polynomial is 0x1DB:
suitable reader antenna, it will start to transmit its data.
See above paragraph on the E2PROM for information
on the data format.
production or in the application.
See PRFID-01 for more information on desktop
Programming in the application is currently being
qualified and is expected to become available in Q1-
For programming with other readers, see the
datasheet for the MLX90124.
production using the MLXPRFID-01 (see application
Per default the MLX90127CZA-Bx is delivered in
4kbaud PP mode. As a best-case assumption the
microcontroller calculation time is neglected in the
following overview table:
For high volume applications requiring a fixed or
unique ID, a cost improvement can be achieved using
the MLX90127CZA-Ax. Since these devices are
programmed during wafer test longer lead times have
to be taken into account, and minimum shipment
quantities have to be respected.
A1. The MLX90127 coil is made using thin copper
wire. Special care should be taken NOT to bend the
label. Therefore it can only be glued onto flat
The P.E.T. disks are relatively rigid, nevertheless the
stress applied on the disks should be minimum.
Thickness < 1mm
At the release of this revision, only photo material of
prototype material was available. Final products will
therefore be slightly different. Please visit our website
for the latest update.
suitability for infrared, vapor phase and wave soldering
with usual (63/37 SnPb-) solder (melting point at
The following test methods are applied:
IPC/JEDEC J-STD-020A (issue April 1999)
Moisture/Reflow Sensitivity Classification For
Nonhermetic Solid State Surface Mount Devices
CECC00802 (issue 1994)
Standard Method For The Specification of Surface
Mounting Components (SMDs) of Assessed Quality
MIL 883 Method 2003 / JEDEC-STD-22 Test Method
For all soldering technologies deviating from above
mentioned standard conditions (regarding peak
temperature, temperature gradient, temperature profile
etc) additional classification and qualification tests
have to be agreed upon with Melexis.
The application of Wave Soldering for SMD's is
allowed only after consulting Melexis regarding
assurance of adhesive strength between device and
For more information on manufacturability/solderability
see quality page at our website:
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.
© 2002 Melexis NV. All rights reserved.