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A robust 3rd order low-distortion multi-bit sigma-delta modulator with reduced number of op-amps for wcdma.
| Content Provider | CiteSeerX |
|---|---|
| Author | Chio, Kin-Sang Seng-Pan, U. Martins, R. P. |
| Abstract | Abstract- This paper describes a novel single-loop multi-bit (3 bits) sigma-delta modulator (SDM) with reduced number of op-amps for wideband WCDMA. Such architecture is based in a simplified analog structure that not only features low distortion but also provides an aggressive and significantly enlarged noise shaping bandwidth with low over-sampling ratio (OSR). With a sampling frequency of 39MHz and an OSR of 10 the proposed circuit can achieve 74dB SFDR. I. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Reduced Number Low-distortion Multi-bit Sigma-delta Modulator Simplified Analog Structure Sigma-delta Modulator Low Distortion Low Over-sampling Ratio Wideband Wcdma Novel Single-loop Multi-bit Sampling Frequency |
| Content Type | Text |
| Resource Type | Article |