Title :
A low power flexible analog baseband for low-IF Zigbee receiver
Author :
Jing-jing Chen ; Wei-Yang Liu ; Wen-Feng Lou ; Hai-Yong Wang ; Nan-Jian Wu
Author_Institution :
State Key Lab. of Superlattices & Microstructures, Inst. of Semicond., Beijing, China
Abstract :
An analog baseband chain for a low-IF Zigbee receiver is implemented in a 0.18-μm CMOS process. The analog baseband consists of a variable gain complex channel filter with on-chip automatic frequency tuning and two decibel linear programmable gain amplifiers (PGA). The phased-locked loop (PLL) based master-slave frequency tuning scheme keeps the complex filter characteristic immune to process and temperature. Measurements results indicate that the analog baseband provides a gain control range from 9 dB to 65 dB. The analog baseband dissipates 2.51mA from a 1.8 V supply and the chip core area is 0.85mm2.
Keywords :
CMOS integrated circuits; Zigbee; amplifiers; automatic frequency control; automatic gain control; channel bank filters; phase locked loops; radio receivers; CMOS process; IF Zigbee receiver; PLL; current 2.51 mA; decibel linear PGA; flexible analog baseband; gain 9 dB to 65 dB; gain control; master-slave frequency tuning scheme; on-chip automatic frequency tuning; phased locked loop; programmable gain amplifier; size 0.18 mum; variable gain complex channel filter; voltage 1.8 V; CMOS; Zigbee; analog baseband; complex filter; programmable gain amplifier;
Conference_Titel :
Electron Devices and Solid State Circuit (EDSSC), 2012 IEEE International Conference on
Conference_Location :
Bangkok
Print_ISBN :
978-1-4673-5694-7
DOI :
10.1109/EDSSC.2012.6482820
