Design Considerations for a Direct RF Sampling Mixer

Design Considerations for a Direct RF Sampling Mixer

This brief presents a detailed time-domain and frequency-domain analysis of a direct RF sampling mixer. Design considerations such as incomplete charge sharing and large signal nonlinearity are addressed. An accurate frequency-domain transfer function is derived. Estimation of noise figure is given....

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Veröffentlicht in:IEEE transactions on circuits and systems. II, Express briefs Express briefs, 2007-11, Vol.54 (11), p.934-938
Hauptverfasser: Dianyong Chen, Wei Wang, Kwasniewski, T.
Format: Artikel
Sprache:eng
Schlagworte:
Analog-digital conversion
Charge
Charge sharing
Circuits
Design engineering
embedded filtering
Mixers
Noise
Noise figure
Nonlinearity
Radio frequencies
Radio frequency
Receivers
RF signals
Sampling
Sampling methods
sampling mixer
Signal sampling
Switches
Voltage
windowed integration sampler
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Beschreibung
Zusammenfassung:This brief presents a detailed time-domain and frequency-domain analysis of a direct RF sampling mixer. Design considerations such as incomplete charge sharing and large signal nonlinearity are addressed. An accurate frequency-domain transfer function is derived. Estimation of noise figure is given. The analysis applies to the design of sub-sampling mixers that have become important for software-defined radio and analog-to-digital converter.
ISSN:1549-7747
1558-3791
DOI:10.1109/TCSII.2007.902063