Analog blocks intended for software defined radio have to be targeted to multi-standard operation trying to guarantee at any time a near optimal power-performance trade-off. A novel approach to design a digitally programmable low pass filter (LPF) and variable gain amplifier (VGA) is here defined. These baseband blocks are driven by a Network-on-Chip that is able to set performances like cut-off frequency, selectivity, noise, and gain conveniently adapting the power consumption. The LPF provides a wide frequency tuning range between 0.35MEz and 23.5MHz with an adaptive integrated noise level between 85 mu Vrms and 163 mu Vrms and a current consumption that moves from 1.5mA to 18mA. The VGA is made up of 2 cascaded gain stages and provides a gain range from 0dB to 39dB. The prototype was realized in 0.13 mu m CMOS technology. Measurements results validate the adopted approach
Giannini, V., Craninckx, J., Compiet, J., Come, B., D'Amico, S., Baschirotto, A. (2006). Flexible baseband Low-Pass Filter and Variable Gain Amplifier for Software Defined Radio Front End. In ESSCIRC 2006: PROCEEDINGS OF THE 32ND EUROPEAN SOLID-STATE CIRCUITS CONFERENCE (pp.203-206). IEEE Computer Society [10.1109/ESSCIR.2006.307566].
Flexible baseband Low-Pass Filter and Variable Gain Amplifier for Software Defined Radio Front End
BASCHIROTTO, ANDREA
2006
Abstract
Analog blocks intended for software defined radio have to be targeted to multi-standard operation trying to guarantee at any time a near optimal power-performance trade-off. A novel approach to design a digitally programmable low pass filter (LPF) and variable gain amplifier (VGA) is here defined. These baseband blocks are driven by a Network-on-Chip that is able to set performances like cut-off frequency, selectivity, noise, and gain conveniently adapting the power consumption. The LPF provides a wide frequency tuning range between 0.35MEz and 23.5MHz with an adaptive integrated noise level between 85 mu Vrms and 163 mu Vrms and a current consumption that moves from 1.5mA to 18mA. The VGA is made up of 2 cascaded gain stages and provides a gain range from 0dB to 39dB. The prototype was realized in 0.13 mu m CMOS technology. Measurements results validate the adopted approach
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