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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Cao Shun Li Jinfeng Wang Ying |
| Copyright Year | 2011 |
| Description | Author affiliation: College of information engineering, Shenyang university of chemical technology, China (Cao Shun; Li Jinfeng; Wang Ying) |
| Abstract | A new low power multimode switched-capacitor sigma delta modulator (SDM) architecture for wireless communication receivers is proposed in the paper. The proposed modulator uses a cascade 2-1-1 topology with single-bit quantizer for stability and inherent linear. The double-sampling SDM and multirate SDM are incorporated together to reduce the slewrate of the operational amplifier (OPAMP) and power dissipation. The low-distortion swing-suppressing technique is used to decrease the inband harmonic distortion. The effects of circuit nonidealities on the modulator performance are discussed. A peak SNR of 85/82/66/63/56/48 dB is achieved over a 0.2/1/2/3.84/22/28 MHz channel bandwidth for GSM/Bluetooth/GPS/WCDMA/WLAN/WiMAX mode. The simulation results demonstrate that the proposed modulator structure fulfills the performance requirements of the above mentioned mobile communication standards and confirm the effectiveness of the proposed scheme. |
| Starting Page | 357 |
| Ending Page | 360 |
| File Size | 122896 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781612841083 |
| e-ISBN | 9781612841090 |
| DOI | 10.1109/ICBMEI.2011.5920468 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-05-13 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Wireless LAN Double sampling techniques Sigma delta modulation Sigma delta modulator Modulation Low power electronics Receivers Bandwidth WiMAX Multi-standard wireless receivers Signal to noise ratio Multi-rate |
| Content Type | Text |
| Resource Type | Article |
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