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.

Additional Metadata
Keywords Charge sharing, Embedded filtering, Noise, Nonlinearity, Sampling mixer, Windowed integration sampler
Persistent URL dx.doi.org/10.1109/TCSII.2007.902063
Journal IEEE Transactions on Circuits and Systems II: Express Briefs
Citation
Chen, D. (Dianyong), Wang, W. (Wei), & Kwasniewski, T. (2007). Design considerations for a direct RF sampling mixer. IEEE Transactions on Circuits and Systems II: Express Briefs, 54(11), 934–938. doi:10.1109/TCSII.2007.902063