刊名:Analog Integrated Circuits and Signal Processing
出版年:2015
出版时间:April 2015
年:2015
卷:83
期:1
页码:95-101
全文大小:1,085 KB
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刊物类别:Engineering
刊物主题:Circuits and Systems<br>Electronic and Computer Engineering<br>Signal,Image and Speech Processing<br>
出版者:Springer Netherlands
ISSN:1573-1979
文摘
Interference is a major concern in surface acoustic wave-less receiver architectures. This paper presents an architectural solution to design a quadrature band-pass \(\varSigma \varDelta \) modulator in presence of interference signals. These interferences are rejected by using the built-in signal transfer function (STF) filtering action inside the quadrature modulator. The implementation of the STF filtering is achieved by means of feed-forward paths and does not require any additional active blocks. Simulations at the behavioral level on different design examples verify the architecture implementation and the effectiveness of the approach.