Chin. J. Semicond. > 2007, Volume 28?>?Issue 6?> 833-841

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A Novel Digital Transceiver for CT0 Standard

Chen Dianyu, Xu Changxi, Chen Haoqiong, Li Zhen, Guo Xiuli, Hui Zhiqiang, Shi Peng, Wang Yue, Wu Yue and Xiong Shaozhen

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Abstract: This paper introduces a novel digital transceiver for the cordless telephone zero (CT0) standard,which uses a digital modulation and demodulation technique to handle the signal instead of the traditional analog method.In the transmitter,a fractional-N phase locked loop (PLL) is utilized to realize the continuous phase frequency shift key (CPFSK) modulation,and a 2 Ts raised cosine (2RC) shaping technique is used to reduce the occupied bandwidth.In the receiver,a novel digital method is proposed to demodulate the 2RC CPFSK signal.This chip is fabricated using an SMIC 0.35μm mixed signal CMOS process with a die size of 2mm×2mm.With an external low noise amplifier (LNA),the sensitivity of the chip is better than -103dBm.

Key words: RF transceiver, fractional-N PLL, CPFSK, modulator, demodulator

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    History

    Received: 18 August 2015 Revised: 30 January 2007 Online: Published: 01 June 2007

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      Chen Dianyu, Xu Changxi, Chen Haoqiong, Li Zhen, Guo Xiuli, Hui Zhiqiang, Shi Peng, Wang Yue, Wu Yue, Xiong Shaozhen. A Novel Digital Transceiver for CT0 Standard[J]. Journal of Semiconductors, 2007, 28(6): 833-841. ****Chen D Y, Xu C X, Chen H, Li Z, Guo X L, Hui Z Q, Shi P, Wang Y, Wu Y, Xiong S Z. A Novel Digital Transceiver for CT0 Standard[J]. Chin. J. Semicond., 2007, 28(6): 833.
      Citation:
      Chen Dianyu, Xu Changxi, Chen Haoqiong, Li Zhen, Guo Xiuli, Hui Zhiqiang, Shi Peng, Wang Yue, Wu Yue, Xiong Shaozhen. A Novel Digital Transceiver for CT0 Standard[J]. Journal of Semiconductors, 2007, 28(6): 833-841. ****
      Chen D Y, Xu C X, Chen H, Li Z, Guo X L, Hui Z Q, Shi P, Wang Y, Wu Y, Xiong S Z. A Novel Digital Transceiver for CT0 Standard[J]. Chin. J. Semicond., 2007, 28(6): 833.

      A Novel Digital Transceiver for CT0 Standard

      • Institute of Photoelectronics,Nankai University,Tianjin 300071,China

      • Department of Microelectronics,Nankai University,Tianjin 300071,China

      • Department of Microelectronics,Nankai University,Tianjin 300071,China

      • Department of Communication Engineering,Nankai University,Tianjin 300071,China

      • Department of Communication Engineering,Nankai University,Tianjin 300071,China

      • Department of Microelectronics,Nankai University,Tianjin 300071,China

      • Department of Microelectronics,Nankai University,Tianjin 300071,China

      • Department of Microelectronics,Nankai University,Tianjin 300071,China

      • Department of Communication Engineering,Nankai University,Tianjin 300071,China

      • Institute of Photoelectronics,Nankai University,Tianjin 300071,China

      Funds:

      國家自然科學基金

      • Received Date: 2015-08-18
      • Accepted Date: 2006-10-18
      • Revised Date: 2007-01-30
      • Published Date: 2007-05-30

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