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- Title
A VERY LOW POWER BANDPASS FILTER FOR LOW-IF APPLICATIONS.
- Authors
FATIN, Gh. ZAREH; KANANI, Z. D. KOOZEH
- Abstract
This paper presents a second-order bandpass filter for IF frequencies in the range of 500 kHz–2 MHz. By using a single Gm–cell as a biquad filter, considerable saving in area and power is feasible. Higher order structures can be achieved by cascading this second-order block. This Gm-C filter achieves a dynamic range of 37 dB for 1% IM3 in Bluetooth while dissipating only 10.5 mW from 3.3 power supply in 0.35 μm CMOS process. The on-chip indirect automatic tuning circuit sets the filter center frequency to an external reference clock.
- Subjects
BANDPASS filters; ELECTRONIC circuit design; BLUETOOTH technology; WIRELESS communications; SYSTEMS engineering
- Publication
Journal of Circuits, Systems & Computers, 2008, Vol 17, Issue 4, p685
- ISSN
0218-1266
- Publication type
Article
- DOI
10.1142/S0218126608004496