Texas Instruments Inc.

Jan. 10, 2007
Flexible Design Increases RFID Reader Performance

Using advanced design practices to increase reader efficiency while reducing the integrated circuit (IC) footprint, Texas Instruments has introduced its high-frequency (13.56 MHz), multi-standard radio frequency identification (RFID) reader IC product family. The advanced package design of the TRF7960(1) family measures 5x5mm, and supports ISO/IEC 14443A/B, 15693, 18000-3 and TI's contactless commerce and Tag-It portfolio.

The dual receiver input configuration of the TRF7960(1) reader family detects Amplitude Modulation (AM) and Phase Modulation (PM), which helps to eliminate read 'holes' created when antenna orientation in the operating environment changes the tag return signal from AM to PM, resulting in more consistent tag reads.

By providing an internal clock for the microcontroller, the powered reader uses only a single 13.56MHz crystal rather than the standard two crystals. Other integrated functions include error checking, data formatting, framing and anti-collision support for multi-reader environments. The TRF7960(1) is designed for both fixed and handheld reader devices.

With a high level of integration, lower power consumption and a smaller footprint, the devices are available today from TI and its authorized distributors in the standard 32-pin QFN (IC to board) connection packages. A reference design and source code for an evaluation module, with TI's MSP430 ultra-low-power microcontroller, is available for easy evaluation of the TRF7960(1) family (software license agreement required).