The AS3911 NFC and HF reader IC has unique capabilities not available in the market and enables a number of applications, including Europay MasterCard Visa payment, access control, automotive, NFC Infrastructure, and ticketing. With an on-chip capacitive sensor, the IC requires only 5 μA of current and can wake in the presence of a tag.
The IC also provides automatic antenna tuning to eliminate manual tuning while providing 1 W of output power, eliminating the need for an external booster circuit. It is the only chip on the market with on-chip error handling for EMV applications. In addition, the AS3911 includes the AFE and a highly integrated data-framing system for handling ISO 18092 (NFCIP-1) initiator, ISO 18092 (NFCIP-1) active target, ISO 14443 A and B reader (including high bit rates) and FeliCa (Felicity Card) reader.
In addition it supports the Very High Bit Rate (VHBR) draft amendment to the 14443 standard, allowing for data rates up to 6.8 Mbit/sec. The AS3911 operates over a wide power supply range — from 2.4 to 5.5 V — and over a wide temperature range of –40° to 85°C and is housed in a 32-pin QFN (5 x 5-mm) package. (Contact company for price and availability.)
By Christina Nickolas
austriamicrosystems , Unetrremstaetten , Austria
U.S. Sales Office 408-345-1790
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