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RF/Microwave??

EM Micro IC suits UHF passive transponder apps

Posted: 15 Mar 2004 ?? ?Print Version ?Bookmark and Share

Keywords:em4223? em microelectronic-marin sa?

The EM4223 chip from EM Microelectronic-Marin SA is designed for use in UHF passive read-only transponder applications such as supply chain management (SCM), tracking and tracing, asset control, licensing and auto-tolling.

Deriving its operating power from an RF beam transmitted by the reader (that is received and rectified by the chip), the device transmits its factory-programmed code back to the reader by varying the amount of energy that is reflected from the chip antenna circuit (passive backscatter modulation).

According to the company, the air interface communication protocol is implemented according to ISO18000-6 type A. The code structure supports the effort of EPCglobal Inc. as an industry accepted standard.

Incorporating the Fast Counting Supertag protocol, the chip is frequency agile and can be used in the range of 800MHz to 2.5GHz for RF propagating field applications. It features a 128-bit user memory license plateGroup select by means of Application Family Identifier (AFI), fast reading of user data during arbitration, frequency independent, low voltage operation (down to 1V), and low power consumption.

Rated for operation between the -40C to 85C temperature range, the IC supports EAN7UCC and EPC data structures as defined by the Auto-ID center.





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