Title :
A power-scalable reconfigurable active-RC complex band-pass filter for a multimode GNSS receiver
Author :
Zhou Chen ; Baoyong Chi ; Yang Xu ; Nan Qi ; Jun Xie ; Lei Chen
Author_Institution :
Inst. of Microelectron., Tsinghua Univ., Beijing, China
fDate :
Oct. 29 2012-Nov. 1 2012
Abstract :
A power-scalable reconfigurable complex band-pass filter for a multimode Global Navigation Satellite Systems (GNSS) receiver is presented. The filter can be reconfigured to work in either fifth-order or third-order mode. The intermediate frequency varies among 3.996, 4.8, 6, 7.161, 10.326, 12, 13.29 and 16MHz. The bandwidth varies among 2.2, 4.2, 6, 10 and 20MHz. An operational amplifier with power-scalable technique is adopted to lower down the power consumption. And an automatic tuning circuit is utilized to guarantee the accuracy of intermediate frequency and bandwidth. The filter has been implemented in 180nm CMOS process, which occupies 1240×600μm2 die area and consumes 3.6mA-8.5mA current from a 1.7V power supply provided by an on-chip band-gap.
Keywords :
band-pass filters; operational amplifiers; radio receivers; satellite navigation; band-pass filter; current 3.6 mA to 8.5 mA; frequency 10.326 MHz; frequency 12 MHz; frequency 13.29 MHz; frequency 16 MHz; frequency 3.996 MHz; frequency 4.8 MHz; frequency 6 MHz; frequency 7.161 MHz; intermediate frequency; multimode GNSS receiver; multimode global navigation satellite systems; on-chip band-gap; operational amplifier; power-scalable reconfigurable active-RC complex; voltage 1.7 V; Arrays; Band pass filters; Bandwidth; Capacitors; Low pass filters; Receivers; Resistors; Complex Band-pass filter; Global Navigation Satellite Systems (GNSS) receiver; power scalable; reconfigurable;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2012 IEEE 11th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4673-2474-8
DOI :
10.1109/ICSICT.2012.6467726
