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A buffer-Based Baseband Analog Front End for CMOS Bluetooth Receivers

Elwan, H. and Younus, M. and Al-Zaher, H. and Ismail, M. (2002) A buffer-Based Baseband Analog Front End for CMOS Bluetooth Receivers. IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, 49 (8). pp. 545-554.

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Abstract

A CMOS low-power baseband analog front end (BAFE) for an integrated bluetooth receiver is presented. The BAFE is designed using a new fully differential buffer (FDB) circuit that can effectively implement filters with gain/filtering interleaved operations. The BAFE utilizes five FDB circuits to implement a sixth-order low noise high linear prefilter, a sixth-order MOS-C tunable filter and a variable gain amplifier (VGA). The distribution of gain and filtering between the various blocks simplifies the design of the VGA stages and allows a good compromise between the input referred noise and the overall linearity. The analog front end is fabricated using a regular 1.2-/spl mu/m CMOS process and occupies an area of 1.7 mm /spl times/ 1.7 mm. Measurements results indicate that the total standby current consumption is less than 2.4 mA while providing a gain control range from 12-30 dB in 6-dB step. The input referred noise is less than 42 nV//spl radic/(Hz) and the out-of-band IIP3 of more than 12 dBm.



Item Type:Article
Date:August 2002
Date Type:Publication
Subjects:Electrical
Divisions:College Of Engineering Sciences > Electrical Engineering Dept
Creators:Elwan, H. and Younus, M. and Al-Zaher, H. and Ismail, M.
Email:UNSPECIFIED, UNSPECIFIED, alzaherh@kfupm.edu.sa, UNSPECIFIED
ID Code:842
Deposited By:Obaid-Ur-Rehman Khattak
Deposited On:30 Mar 2008 11:14
Last Modified:12 Apr 2011 13:06

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