Title :
A low-power FSK modulator using fractional-N synthesizer for wireless sensor network application
Author :
Yan, Dan Lei ; Teo, T. Hui ; Zhao, Bin ; Choi, Yeung Bun ; Yeoh, Wooi Gan
Author_Institution :
Microelectron. Inst., Singapore
Abstract :
A low-power fractional-N synthesizer is designed for direct modulation transmitter at 2.40-2.50GHz range using standard 0.18mum CMOS. The synthesizer is fully implemented on-chip for integrated low data rate wireless sensor network (WSN) application. The data rate is as low as 10kbit/s. Phase noise of -93dBc/Hz at 600kHz offset is measured for the synthesizer. The active area is 0.8 times 0.8mm2, with total power of 8.0mW from a single 1.8V supply
Keywords :
CMOS integrated circuits; frequency shift keying; frequency synthesizers; low-power electronics; modulators; radio transmitters; wireless sensor networks; 0.18 micron; 1.8 V; 10 kbit/s; 8 mW; CMOS integrated circuit; FSK modulator; direct modulation transmitter; fractional-N synthesizer; sigma-delta modulator; wireless sensor network; Delta-sigma modulation; Digital circuits; Digital modulation; Frequency shift keying; Frequency synthesizers; Phase noise; Transceivers; Transmitters; Voltage-controlled oscillators; Wireless sensor networks;
Conference_Titel :
Radio Frequency Integrated Circuits (RFIC) Symposium, 2006 IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-9572-7
DOI :
10.1109/RFIC.2006.1651121
