A complex bandpass ΔΣ converter for digital radio
- 17 December 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 5, 453-456 vol.5
- https://doi.org/10.1109/iscas.1994.409407
Abstract
A new architecture is proposed for a single-chip digital radio receiver. This architecture has several advantages over the direct-conversion architecture that has been gaining interest for use in single-chip designs. A non-zero quadrature IF reduces the image problem and eliminates concerns about self-EMI and 1/f noise. A complex bandpass filter embedded in a delta-sigma loop allows the A/D conversion to be performed directly on the pair of quadrature outputs from the mixer.Keywords
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