|[March 06, 2013]
New boosted NFC tag front end from ams enables secure payment transactions on µSD and µSIM cards
UNTERPREMSTAETTEN, Austria --(Business Wire)--
ams AG (SIX: AMS), a leading worldwide designer and manufacturer of
high-performance analog ICs for consumer & communications, industrial &
medical, and automotive applications, today announces the release of the
AS3922, a tag (News - Alert) analog front end (AFE) which enables the operation of NFC
on µSD, µSIM, SIM and other space-constrained carrier devices.
Featuring Active Boost technology from ams, the AS3922 emulates an
ISO14443A/B tag through active transmission of the tag's response in
synch with the reader's carrier field. This overcomes the difficulties
with using conventional passive load modulation in a µSD or µSIM card, a
device with a very small antenna and - in a mobile phone - operating in
a harsh environment. The use of an AS3922 AFE provides for tag-to-reader
communication at coupling factors one order of magnitude lower than is
possible using conventional methods.
The general introduction of the AS3922, which can interface to any Dual
Interface Secure Evironment, enables the development of a new
generation of contactless payments accessories hosted on a µSD, µSIM or
SIM card. Mobile phone network operators, banks and others will be able
to provide customers with a contactless payment technology card suitable
for the many mobile phones that have no NFC (Near Field Communications)
As well as offering Active Boost functionality, the AS3922 also features
antenna auto tuning (AAT) technology, Q factor adjustment, and a
low-impedance output driver with adjustable output power.
The AS3922 complies with the ISO14443A and B standards for tag
emulation, supporting data rates up to 106kb/s. It also supports FeliCa
at data rates up to 212kb/s.
The AS3922 provides an Analog Contactless Bridge (ACLB) interface for
communication with a secure element and a Digital Secure Environment
Interface which supports NFC CLF, DCLB and NFC-WI interfaces.
Mark Dickson, Senior Marketing Manager (Wireless) of ams, said:
"Previous SIM or µSD card-based NFC products needed an external booster
antenna, which is not user friendly or robust due to its extended
antenna. Active Boost technology from ams changes the game because it
enables NFC to become a 'plug and play' function for any device with a
µSD, SD or SIM card slot."
Price & Availability
The AS3922 is in volume production now. Its price is available on
request from ams.
A demonstration board for evaluating the AS3922 is available on request
from ams. For more information about the AS3922, please visit www.ams.com/RF-Products/RFID/AS3922.
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