A Reconfigurable Sigma-Delta Modulator for Multi- Standard Wireless Applications
نویسندگان
چکیده
This paper describes the design and implementation of a low power reconfigurable sigma-delta modulator for multi-standard wireless applications in a 90-nm CMOS technology. Both architectural and circuital reconfigurations are used to adapt the performance of the modulator to five different communication standards. The feasibility of the proposed solution is shown using the system-level simulations as well as device-level simulations of the modulator. HSPICE simulation results reveal that the proposed modulator achieves 73/ 75/ 82/ 86/ 91 dB peak SNDR within the five standards of Wi-Fi/ WiMAX/ WCDMA/ Bluetooth/ GSM with the bandwidth of 11MHz/ 10MHz/ 1.92MHz/ 0.5MHz/ 200kHz respectively under power consumption of 37/ 37/ 12/ 5/ 5 mW in 1V supply.
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