A low-power CMOS WIA-PA transceiver with a high sensitivity GFSK demodulator  

作　　者：杨涛 姜宇 刘生有 郭桂良 阎跃鹏 

机构地区：[1]Institute of Microelectronics, Chinese Academy of Sciences

出　　处：《Journal of Semiconductors》2015年第6期123-130,共8页半导体学报（英文版）

基　　金：Project supported by the National High Technology Research and Development Program of China(No.2011AA040102)

摘　　要：This paper presents a low power, high sensitivity Gaussian frequency shift keying （GFSK） demodu- lator with a flexible frequency offset canceling method for wireless networks for industrial automation process automation （WIA-PA） transceiver fabricated in 0.18 #m CMOS technology. The receiver uses a low-IF （1.5 MHz） architecture, and the transmitter uses a sigma delta PLL based modulation with Gaussian low-pass filter for low power consumption. The active area of the demodulator is 0.14 mm2. Measurement results show that the proposed demodulator operates without harmonic distortion, deals with 4-180 kHz frequency offset, needs SNR only 18.5 dB at 0.1% bit-error rate （BER）, and consumes no more than 0.26 mA from a 1.8 V power supply.This paper presents a low power, high sensitivity Gaussian frequency shift keying （GFSK） demodu- lator with a flexible frequency offset canceling method for wireless networks for industrial automation process automation （WIA-PA） transceiver fabricated in 0.18 #m CMOS technology. The receiver uses a low-IF （1.5 MHz） architecture, and the transmitter uses a sigma delta PLL based modulation with Gaussian low-pass filter for low power consumption. The active area of the demodulator is 0.14 mm2. Measurement results show that the proposed demodulator operates without harmonic distortion, deals with 4-180 kHz frequency offset, needs SNR only 18.5 dB at 0.1% bit-error rate （BER）, and consumes no more than 0.26 mA from a 1.8 V power supply.

关 键 词：GFSK DEMODULATOR DLL charge pump PFD VCDL 

分 类 号：TN763[电子电信—电路与系统]