A design for passive RFID system on a chip

The spread of RFID application need IC-based solution to reduce the size and cost of reader. The design result and architecture of UHF band passive RFID reader system on a chip is presented in this paper. The chip includes processor core, Flash memory, RFID digital baseband, DAC/ADC, RF based on direct-conversion architecture, user interface block. RFID protocol meets the EPC Class-1 Generation 2 and ISO-18000-6C standards. The chip can cover all passive RFID frequency range from 860MHz to 960MHz and provide low power consumption as 78mA from 1.8V when output power is +5dBm. The package is 8mm x 8mm CABGA made with 4mm x 4mm die area.