Title :
A 0.1∼4GHz receiver and 0.1∼6GHz transmitter with reconfigurable 10∼100MHz signal bandwidth in 65nm CMOS
Author :
Zhang, Xinwang ; Yin, Yun ; Cao, Meng ; Sun, Zhigang ; Fu, Ling ; Xia, Zhaokang ; Feng, Hongxing ; Zhang, Xing ; Chi, Baoyong ; Xu, Ming ; Wang, Zhihua
Author_Institution :
Inst. of Microelectron., Tsinghua Univ., Beijing, China
Abstract :
A 8.12mm2 0.1-4GHz receiver and 0.1~6GHz transmitter with reconfigurable 10~100MHz signal bandwidth in 65nm CMOS is presented. Rx features two single-ended LNAs in parallel, passive current down-conversion with 25% duty-cycle LOs, 5th/7th-order reconfigurable baseband filtering and IIP2/frequency tuning/IQ calibration. It achieves NF of 3~8dB over 0.1-4GHz and 21mA current consumption for 2.3GHz LTE with 20MHz signal bandwidth. Fully-integrated Tx features reconfigurable PPAs with transformer differential-single-ended conversion output, a low-noise sub-path and high dynamic range main-path as well as LO leakage and image rejection calibration. It achieves 1.7% EVM for 1.8GHz WCDMA with 1.5dBm output power, -31/-51 ACLR1/ACLR2 for 2.3GHz LTE with 20MHz bandwidth at 3dBm output power, <;-42dBc LO feedthrough and >;51dBc image rejection.
Keywords :
CMOS analogue integrated circuits; low noise amplifiers; radio receivers; radio transmitters; CMOS; IIP2; IQ calibration; LO leakage; LTE; WCDMA; bandwidth 20 MHz; current 21 mA; frequency 1 GHz to 4 GHz; frequency 1.8 GHz; frequency 2.3 GHz; frequency tuning; image rejection calibration; receiver; reconfigurable PPA; reconfigurable baseband filtering; single-ended LNA; size 65 nm; transformer differential-single-ended conversion; transmitter; Bandwidth; Calibration; Mixers; Radio transmitters; Receivers; Transceivers;
Conference_Titel :
Custom Integrated Circuits Conference (CICC), 2012 IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1555-5
Electronic_ISBN :
0886-5930
DOI :
10.1109/CICC.2012.6330680
