刊名:Analog Integrated Circuits and Signal Processing
出版年:2017
出版时间:February 2017
年:2017
卷:90
期:2
页码:321-331
全文大小:
刊物类别:Engineering
刊物主题:Circuits and Systems; Electrical Engineering; Signal,Image and Speech Processing;
出版者:Springer US
ISSN:1573-1979
卷排序:90
文摘
In this research a novel low power multi-mode continuous time Delta Sigma modulator was designed to be compatible with many mobile wireless standards. This modulator has a reconfigurable structure to adapt to various standards from 0.2 to 20 MHz. The designed modulator uses a VCO-based quantizer not only for lowering power consumption, but also for reducing the required chip area. The presented modulator can function with up to third order of noise shaping, or in a low power mode in which the loop filter is disabled and only the VCO-based quantizer is used. The proposed modulator was implemented and simulated in transistor level in 180 nm technology. This modulator can digitize at least seven standards (LTE (20 MHz)/WLAN/LTE (9 MHz)/WCDMA/UMTS/Bluetooth/GSM) with a favorable dynamic range (65–89 dB) and power consumption (9.1 mW–670 μW).
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