A low power wide tuning range baseband filter for multistandard transceivers  

作　　者：耿志卿 吴南健 

机构地区：[1]School of Information and Electrical Engineering,Hebei University of Engineering [2]State Key Laboratory for Superlattices and Microstructures,Institute of Semiconductors,Chinese Academy of Sciences

出　　处：《Journal of Semiconductors》2015年第4期131-142,共12页半导体学报（英文版）

基　　金：supported by the Scientific Research Plan Projects of Hebei Education Department(No.Q2012019)

摘　　要：This paper presents the design and implementation of a low power wide tuning range baseband filter with an accurate on-chip tuning circuit for reconfigurable multistandard wireless transceivers. The realized low pass filter （LPF） is a six-order Butterworth type by cascading three stage active-Gm-RC biquadratic cells. A mod- ified linearization technique is used to improve the filter linearity performance at low power consumption. A new process-independent transconductor matching circuit and a new frequency tuning circuit with frequency compen- sation are proposed to achieve a high precision filter frequency response. The proposed LPF is realized in a 130 nm standard CMOS technology. The measured results show that the LPF exhibits a high bandwidth programmability from 0.1 to 25 MHz with a tuning frequency error less than 2.68% over the wide tuning range. The power consump- tion is scalable, ranging from 0.52 to 5.25 mA, from a 1.2 V power supply while achieving a 26.3 dBm in-band IIP3.This paper presents the design and implementation of a low power wide tuning range baseband filter with an accurate on-chip tuning circuit for reconfigurable multistandard wireless transceivers. The realized low pass filter （LPF） is a six-order Butterworth type by cascading three stage active-Gm-RC biquadratic cells. A mod- ified linearization technique is used to improve the filter linearity performance at low power consumption. A new process-independent transconductor matching circuit and a new frequency tuning circuit with frequency compen- sation are proposed to achieve a high precision filter frequency response. The proposed LPF is realized in a 130 nm standard CMOS technology. The measured results show that the LPF exhibits a high bandwidth programmability from 0.1 to 25 MHz with a tuning frequency error less than 2.68% over the wide tuning range. The power consump- tion is scalable, ranging from 0.52 to 5.25 mA, from a 1.2 V power supply while achieving a 26.3 dBm in-band IIP3.

关 键 词：low power baseband filter frequency tuning 

分 类 号：TN713[电子电信—电路与系统]