SEMICONDUCTOR INTEGRATED CIRCUITS

High-precision high-sensitivity clock recovery circuit for a mobile payment application

Sun Lichong, Ren Wenliang, Yan Na and Min Hao

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Abstract: This paper presents a fully integrated carrier clock recovery circuit for a mobile payment application. The architecture is based on a sampling-detection module and a charge pump phase locked loop. Compared with clock recovery in conventional 13.56 MHz transponders, this circuit can recover a high-precision consecutive carrier clock from the on/off keying (OOK) signal sent by interrogators. Fabricated by a SMIC 0.18-μm EEPROM CMOS process, this chip works from a single power supply as low as 1.5 V. Measurement results show that this circuit provides 0.34% frequency deviation and 8 mV sensitivity.

Key words: clock recoverymobile paymentPLLOOKRFID

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    Received: 18 August 2015 Revised: 12 February 2011 Online: Published: 01 May 2011

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      Sun Lichong, Ren Wenliang, Yan Na, Min Hao. High-precision high-sensitivity clock recovery circuit for a mobile payment application[J]. Journal of Semiconductors, 2011, 32(5): 055007. doi: 10.1088/1674-4926/32/5/055007 Sun L C, Ren W L, Yan N, Min H. High-precision high-sensitivity clock recovery circuit for a mobile payment application[J]. J. Semicond., 2011, 32(5): 055007. doi: 10.1088/1674-4926/32/5/055007.Export: BibTex EndNote
      Citation:
      Sun Lichong, Ren Wenliang, Yan Na, Min Hao. High-precision high-sensitivity clock recovery circuit for a mobile payment application[J]. Journal of Semiconductors, 2011, 32(5): 055007. doi: 10.1088/1674-4926/32/5/055007

      Sun L C, Ren W L, Yan N, Min H. High-precision high-sensitivity clock recovery circuit for a mobile payment application[J]. J. Semicond., 2011, 32(5): 055007. doi: 10.1088/1674-4926/32/5/055007.
      Export: BibTex EndNote

      High-precision high-sensitivity clock recovery circuit for a mobile payment application

      doi: 10.1088/1674-4926/32/5/055007
      • Received Date: 2015-08-18
      • Accepted Date: 2010-12-06
      • Revised Date: 2011-02-12
      • Published Date: 2011-04-21

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