Open AccessCascaded charge‐domain sampling mixer with embedded sinc 3 FIR and four‐path filters for software‐defined radio
Author(s) -
Zhou Yushi,
Yuan Fei
Publication year - 2014
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2013.2871
Subject(s) - sinc function , decimation , finite impulse response , electronic engineering , attenuation , sampling (signal processing) , transition band , cmos , physics , low pass filter , aliasing , filter (signal processing) , computer science , prototype filter , electrical engineering , engineering , optics , computer vision
A charge‐domain downconversion sampling mixer with an embedded four‐path bandpass filter for band selection and a sinc 3 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.