DocumentCode :
1351267
Title :
A 0.5 mm ^{2} Power-Scalable 0.5–3.8-GHz CMOS DT-SDR Receiver With Second-Order RF Band-Pass Sampler
Author :
Geis, Arnd ; Ryckaert, Julien ; Bos, Lynn ; Vandersteen, Gerd ; Rolain, Yves ; Craninckx, Jan
Author_Institution :
IMEC, Leuven, Belgium
Volume :
45
Issue :
11
fYear :
2010
Firstpage :
2375
Lastpage :
2387
Abstract :
A highly flexible receiver chain based on RF-sampling and discrete-time signal processing in the charge domain for SDR applications is presented. A compact switched-inductor variable-gain front-end provides multiband low noise amplification and RF-selectivity with reduced area penalties. Strong selectivity at RF was obtained through a novel discrete-time decimating bandpass filter with triangular weighted filter taps. Decimation filters with programmable number of taps offer flexible rate decimation. A power scalable discrete-time baseband filter was implemented in-order to minimize static power consumption. The 90-nm digital CMOS implementation achieves a noise figure of 5.1 dB, a variable gain range of more than 60 dB with +1 dBm IIP3 and +50 dBm IIP2. This is achieved for power figures competitive with dedicated solutions. The receiver, frequency synthesizer excluded, occupies only 0.5 mm2 .
Keywords :
CMOS digital integrated circuits; band-pass filters; frequency synthesizers; inductors; microwave receivers; mobile radio; signal processing; software radio; RF-selectivity; charge domain; compact switched-inductor variable-gain front-end; digital CMOS implementation; discrete-time decimating bandpass filter; discrete-time signal processing; frequency 0.5 GHz to 3.8 GHz; frequency synthesizer; low noise amplification; noise figure 51 dB; power-scalable CMOS DT-SDR receiver; second-order RF bandpass sampler; triangular weighted filter taps; Finite impulse response filter; Gain; Inductors; Noise; Noise measurement; Receivers; Switches; Band-pass sampling; RF-sampling; discrete-time signal processing; multiband receiver; programmable charge domain filter; software-defined radio (SDR); switched OPAMP; switched inductor;
fLanguage :
English
Journal_Title :
Solid-State Circuits, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9200
Type :
jour
DOI :
10.1109/JSSC.2010.2073170
Filename :
5601803
Link To Document :
بازگشت