A low-power fully integrated Gaussian-MSK modulator based on the sigma-delta fractional-N frequency synthesis

Author

Zarei, Hossein ; Shoaei, Onzid ; Fakhraie, M.

Author_Institution

Tehran Univ., Iran

Volume

4

fYear

2001

fDate

6-9 May 2001

Firstpage

100

Abstract

A fully integrated GMSK modulator in DRRS band is presented All components of the transmitter except the power amplifier, including the loop filter and the oscillator are on-chip. Transistor and system level simulations demonstrate that the modulator meets the performance requirements of the DRRS standard. The circuit power consumption of the modulator at 1.4 GHz is 37 mW with a single 3 V power supply, in a 0.6 μm digital CMOS technology. Low power consumption of the modulator is due to the low-power frequency divider and low-power low-phase noise ring oscillator

Keywords

digital radio; frequency synthesizers; low-power electronics; minimum shift keying; modulators; 0.6 micron; 1.4 GHz; 3 V; 37 mW; DRRS band; Gaussian-MSK modulator; circuit power consumption; digital radio relay system; frequency divider; loop filter; ring oscillator; sigma-delta fractional-N frequency synthesis; system level simulations; CMOS technology; Circuit simulation; Digital modulation; Energy consumption; Filters; Gaussian processes; Oscillators; Power amplifiers; Power supplies; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on

Conference_Location

Sydney, NSW

Print_ISBN

0-7803-6685-9

Type

conf

DOI

10.1109/ISCAS.2001.922180

Filename

922180