A Novel Digital Transceiver for CT0 Standard
一个新颖的用于CT0标准的数字收发器(英文)作者机构:南开大学光电子研究所天津300071 南开大学微电子学系天津300071 南开大学通信工程系天津300071
出 版 物:《Journal of Semiconductors》 (半导体学报(英文版))
年 卷 期:2007年第28卷第6期
页 面:833-841页
核心收录:
学科分类:0810[工学-信息与通信工程] 08[工学] 081001[工学-通信与信息系统]
基 金:国家自然科学基金重点项目(批准号:60437030) 天津市自然科学基金(批准号:05YFJMJC01400)资助项目~~
主 题:RF transceiver fractional-N PLL CPFSK modulator demodulator
摘 要: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 meth-od. 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.