A fast-hopping single-PLL 3-band MB-OFDM UWB synthesizer

Author

Van de Beek, Remco C H ; Leenaerts, Domine M W ; van der Weide, Gerard

Author_Institution

Philips Res. Labs., Eindhoven

Volume

41

Issue

7

fYear

2006

fDate

7/1/2006 12:00:00 AM

Firstpage

1522

Lastpage

1529

Abstract

This paper describes a 3-band (mode 1) multi-band-OFDM UWB synthesizer implemented in a 0.25-mum SiGe BiCMOS process. The interference-robust, fast-hopping synthesizer uses one single-sideband (SSB) mixer for frequency shifting. A single phase-locked loop (PLL) generates the steady input signals for the SSB-mixer. Crucial in the design is a divide-by-5 frequency divider that generates quadrature signals at a frequency of 528 MHz. The 0.44 mm² fully integrated synthesizer consumes 52 mW from a 2.7 V supply. Out-of-band spurious tones are below -50 dBc, allowing co-operability with WLAN applications in the 2.4 GHz and 5 GHz range. The integrated phase noise is below 2deg rms. The measured frequency transition time is well below the required 9.5 ns

Keywords

BiCMOS integrated circuits; Ge-Si alloys; OFDM modulation; frequency dividers; frequency synthesizers; mixers (circuits); phase locked loops; ultra wideband communication; 0.25 micron; 2.4 GHz; 2.7 V; 5 GHz; 52 mW; 528 MHz; BiCMOS process; SiGe; frequency divider; frequency shifting; frequency synthesizers; integrated phase noise; interference; multi-band OFDM UWB synthesizer; single phase-locked loop; single-sideband mixer; wireless LAN; Amplitude modulation; BiCMOS integrated circuits; Frequency conversion; Frequency synthesizers; Germanium silicon alloys; Interference; Phase locked loops; Signal design; Signal generators; Silicon germanium; Frequency dividers; frequency synthesizers; phase-locked loops; ultra-wideband;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/JSSC.2006.873922

Filename

1644861