supported by the National Natural Science Foundation of China (No.90407011);the National High-Tech Research and Development Program (863) of China (No.2007AA01Z2b3);China Postdoctoral Science Foundation (No.20090451439)
This paper presents an approach for analyzing the key parts of a general digital radio frequency(RF) charge sampling mixer based on discrete-time charge values.The cascade sampling and filtering stages are analyzed an...
Supported by the National Natural Science Foundation of China (No. 90407011);the National High-Tech Research and Development (863) Program of China (No. 2007AA01Z2b3)
A transform method was used to model a discrete time multi-tap direct sampling mixer. The method transforms the mixed filtering and down-sampling stages to separate cascade filtering and sampling stages to determine t...
This work is supported by the National Natural Science Foundation of China (NSFC) (No.90407011 and No.90307016).
A dual-loop Clock and data recovery (CDR) scheme based on phase quantization is proposed. The CDR scheme adopts the idea of fractional-N synthesizers to adjust the phase of recovered clock signal. It combines Sigma-...
A simple and successful method for the stability enhancement of integrated circuits is presented. When the process parameters, temperature, and supply voltage are changed, according to the simulation results, this met...