Title :
A low-power CMOS complex filter for Bluetooth with frequency tuning
Author :
Emira, Ahmed ; Sanchez-Sinencio, Edgar
Author_Institution :
Analog & Mixed Signal Center, Texas A&M Univ., College Station, TX, USA
Abstract :
A 12th order OTA-C complex filter with a non-conventional frequency tuning for Bluetooth receiver is implemented in a low-cost mainstream 0.35 μm CMOS process. The filter bandwidth is 1 MHz and is centered at 2 MHz. Image and adjacent channels are attenuated by 45 and 27 dB, respectively. The input referred noise is 29 μVrms and it dissipates 4.7 mA from a 2.7 V supply. Experimental results were found to be in good agreement with theoretical expectations.
Keywords :
Bluetooth; CMOS analogue integrated circuits; UHF filters; UHF integrated circuits; active filters; circuit tuning; low-power electronics; operational amplifiers; radio receivers; 0.35 micron; 1 MHz; 2 MHz; 2.7 V; 4.7 mA; Bluetooth receiver; frequency tuning; image rejection; low-IF architecture; low-power CMOS OTA-C complex filter; 1f noise; Band pass filters; Bluetooth; CMOS process; Capacitors; Circuits; Frequency; Nonlinear filters; Prototypes; Tuning;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205607
