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

Author

Dan Gao ; Yaoxian Fu

Author_Institution

Shanghai Inst. of Microsyst. & Inf. Technol., Shanghai, China

fYear

2010

fDate

15-17 Nov. 2010

Firstpage

90

Lastpage

94

Abstract

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.

Keywords

CMOS digital integrated circuits; analogue-digital conversion; digital-analogue conversion; microprocessor chips; modems; quadrature phase shift keying; radio transceivers; system-on-chip; temperature sensors; wireless sensor networks; ADC/DAC; BPSK/QPSK DSSS modulation; CMOS; baseband modem; direct modulation scheme; embedded microprocessor ARM7TDMI; fully integrated SoC; large scale wireless sensor networks; low-IF architecture receiver; processing gain; radio transceiver; radio transmitter; size 0.18 mum; symbol rate; system-on-chip; temperature sensor; CMOS; System-on-Chip (SoC); wireless sensor networks;

fLanguage

English

Publisher

iet

Conference_Titel

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

Conference_Location

Beijing

Type

conf

DOI

10.1049/cp.2010.1034

Filename

5741076