Cascaded charge-domain sampling mixer with embedded sinc3 FIR and four-path filters for software-defined radio

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 alia...

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Veröffentlicht in:	Electronics letters 2014-01, Vol.50 (3), p.216-218
Hauptverfasser:	Zhou, Yushi, Yuan, Fei
Format:	Artikel
Sprache:	eng
Schlagworte:	aliasing interferences Applied sciences band‐pass filters channel selection charge‐domain down‐conversion sampling mixer Circuit properties CMOS integrated circuits current 1.08 mA Detection, estimation, filtering, equalization, prediction Electric, optical and optoelectronic circuits Electronic circuits Electronics embedded 4‐path bandpass filter embedded sinc3 FIR Exact sciences and technology finite impulse response filter FIR filters first‐order sinc FIR frequency 100 MHz Frequency filters IBM CMOS Information, signal and communications theory out‐of‐band blockers Radiocommunications radiofrequency interference Signal and communications theory Signal convertors Signal, noise size 130 nm software radio software‐defined radio Telecommunications Telecommunications and information theory UHF filters UHF integrated circuits UHF mixers voltage 1.2 V Wireless communications
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Zusammenfassung:	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.
ISSN:	0013-5194 1350-911X 1350-911X
DOI:	10.1049/el.2013.2871