Title :
Cascaded charge-domain sampling mixer with embedded sinc3 FIR and four-path filters for software-defined radio
Author :
Yushi Zhou ; Fei Yuan
Author_Institution :
Dept. of Electr. & Comput. Eng., Ryerson Univ., Toronto, ON, Canada
Abstract :
A charge-domain downconversion sampling mixer with an embedded four-path bandpass filter for band selection and a sinc3 finite impulse response (FIR) and a first-order sinc FIR with a decimation of 4 for channel selection is proposed to provide sufficient attenuation of out-of-band blockers and aliasing interferences. The sampling mixer designed in an IBM 130 nm 1.2 V CMOS with a 100 MHz input exhibits an 80 dB suppression of aliasing interferences and a 57 dB stopband attenuation while consuming 1.08 mA.
Keywords :
CMOS integrated circuits; FIR filters; UHF filters; UHF integrated circuits; UHF mixers; band-pass filters; radiofrequency interference; software radio; IBM CMOS; aliasing interferences; channel selection; charge-domain down-conversion sampling mixer; current 1.08 mA; embedded 4-path bandpass filter; embedded sinc3 FIR; finite impulse response filter; first-order sinc FIR; frequency 100 MHz; out-of-band blockers; size 130 nm; software-defined radio; voltage 1.2 V;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2013.2871
