A CMOS bandpass filter for low-IF bluetooth receivers

被引：14

作者：

Alzaher, Hussain A. ^{[1
]}

Alghamdi, Mohammad K. ^{[1
]}

机构：

[1] King Fahd Univ Petr & Minerals, Dept Elect Engn, Dhahran 31261, Saudi Arabia

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS | 2006年 / 53卷 / 08期

关键词：

bluetooth (BT) receivers; CMOS analog integrated circuits (ICs); current mode circuits; intermediate-frequency (IF) bandpass filters;

D O I：

10.1109/TCSI.2006.879013

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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-mu m 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.

引用

页码：1636 / 1647

页数：12

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