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Adaptive analog IF signal processor for a wide-band CMOS wireless receiver

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7 Author(s)
F. Behbahani ; Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA ; A. Karimi-Sanjaani ; Wee-Guan Tan ; A. Roithmeier
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An IF strip for a wireless receiver supports a variable baud rate by changing analog filter bandwidth. Sliding and step adaptive dynamic range are both used at IF to dissipate only the necessary power at prevailing channel conditions. A combination of VGA and PGA is developed for 64-QAM. The total signal processor draws an average of 16 mA from 3.3 V and a peak of 73 mA. The differential input noise is as low as 3.9 nV/√Hz, while maximum IIP3 is +22 dBm with respect to 100 ohms

Published in:

IEEE Journal of Solid-State Circuits  (Volume:36 ,  Issue: 8 )