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A 2G/3G Cellular Analog Baseband Based on a Filtering ADC

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3 Author(s)
Sosio, M. ; Univ. degli Studi di Pavia, Pavia, Italy ; Liscidini, A. ; Castello, R.

A current-driven low-pass filter embedded in a sigma-delta analog-to-digital converter is presented. The implementation of a class-B feedback digital-to-analog converter, together with in-band noise reduction and passive filtering, gives the possibility to handle challenging wireless communication scenarios with low power consumption. The architecture is a suitable candidate to implement the entire baseband analog section of a Global System for Mobile Communications-Universal Mobile Telecommunications System (GSM-UMTS) reconfigurable receiver.

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Circuits and Systems II: Express Briefs, IEEE Transactions on  (Volume:59 ,  Issue: 4 )