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A fully integrated SoC for large scale wireless sensor networks in 0.18µm CMOS

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2 Author(s)
Dan Gao ; Shanghai Institute of Microsystem and Information Technology, CAS, 865 Changning Road 200050, China ; Yaoxian Fu

A fully integrated system-on-chip (SoC) intended for use in large scale wireless sensor networks is built in 0.18um CMOS. All of building blocks including embedded microprocessor ARM7TDMI, baseband modem, radio transceiver, ADC/DAC, temperature sensor and some communication ports have been integrated into a single chip. The baseband modem adopts BPSK/QPSK DSSS modulation, which symbol rate and processing gain are optional. The radio transmitter utilizes the direct modulation scheme while the receiver is based on Low-IF architecture which Rx sensitivity can achieve -92dBm. The temperature sensor on chip can provide a resolution of 0.15°C from -55°C to + 130°C with an error of less than 0.7°C.

Published in:

Wireless Sensor Network, 2010. IET-WSN. IET International Conference on

Date of Conference:

15-17 Nov. 2010