Abstract
A CMOS fully integrated 12th-order bandpass filter for low interemdiate frequency Bluetooth receivers is presented. The design is optimized to meet the selectivity and dynamic range requirements of Bluetooth while consuming relatively low power. The filter is based on unity gain cells and utilizes linearized MOSFET resistors for tuning. It exhibits a bandwidth of 1 MHz and a programmable center frequency range of 2 to 4 MHz. Experimental results obtained from a standard 0.5-μm CMOS chip show that the filter exhibits an in-band dynamic range of 53.3 dB at gain of 0 dB, and 52 dB at gain of 15 dB, while consuming a total current of 1.32 mA. Attenuations of more than 10, 38, and 55 dB, are achieved for blockers one, two, and three, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 1636-1647 |
| Number of pages | 12 |
| Journal | IEEE Transactions on Circuits and Systems I: Regular Papers |
| Volume | 53 |
| Issue number | 8 |
| DOIs | |
| State | Published - Aug 2006 |
Bibliographical note
Funding Information:Manuscript received October 27, 2004; revised October 13, 2005. This work was supported by the King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Saudi Arabia. This paper was recommended by Associate Editor A. Baschirotto. The authors are with the Department of Electrical Engineering, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran 31261, Saudi Arabia. Digital Object Identifier 10.1109/TCSI.2006.879013
Keywords
- Bluetooth (BT) receivers
- CMOS analog integrated circuits (ICs)
- Current mode circuits
- Intermediate-frequency (IF) bandpass filters
ASJC Scopus subject areas
- Electrical and Electronic Engineering