Title :
A 1-V 60MHz bandpass filter with quality-factor calibration in 65nm CMOS
Author :
Lo, Tien-Yu ; Hsiao, Chuan-Cheng ; Hsueh, Kang-Wei ; Li, Hung-Sung
Author_Institution :
MediaTek Inc., Hsinchu, Taiwan
Abstract :
A 5-th order bandpass filter is implemented in this paper. The filter can perform SAW filter function required in the tuner. In this design, leap-frog synthesis is used and the Active-RC topology is implemented. To save power consumption, the amplifier with a smaller unity gain-bandwidth is designed, and a new quality-factor calibration strategy is presented to compensate the non-ideal effect of the filter. In addition, the accurate center frequency is obtained by adopting a modified frequency tuning scheme. The filter was fabricated in 65 nm CMOS process, and consumes 23.5 mW under 1-V supply.
Keywords :
CMOS integrated circuits; band-pass filters; nanoelectronics; power consumption; surface acoustic wave filters; 5-th order bandpass filter; CMOS process; SAW filter function; active-RC topology; filter nonideal effect; frequency 60 MHz; gain-bandwidth; leap-frog synthesis; modified frequency tuning scheme; power 23.5 mW; power consumption; quality-factor calibration; size 65 nm; voltage 1 V; Band pass filters; CMOS process; Calibration; Energy consumption; Frequency; Power amplifiers; SAW filters; Topology; Tuners; Tuning;
Conference_Titel :
Solid-State Circuits Conference, 2009. A-SSCC 2009. IEEE Asian
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-4433-5
Electronic_ISBN :
978-1-4244-4434-2
DOI :
10.1109/ASSCC.2009.5357172
