The Design and Implementation for Demodulator Supporting the Multi-standard 13.56 MHz RFID Reader

For the design of RFID reader chip demodulation circuit which can support multi-standard in 13.56 MHz,this paper provides some considerations to the key circuit design.Begining with the structure of the RFID reader,the difficulties for the design of RFID reader chip demodulation circuit which can support multi-standard are introduced first,and then the design solution is proposed to the key part of the demodulation circuit design.At last,the tapeout results are verified.