A tuneable CT BP Delta-Sigma upconverter in CMOS 0.13μm with Manchester codec

Author

Luo, Lijun ; Sobot, Robert

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, ON, Canada

fYear

2011

fDate

23-26 Aug. 2011

Firstpage

140

Lastpage

144

Abstract

A new tuneable frequency up-convertor circuit in CMOS 0.13/im technology, using a 4^th order tuneable continuous-time bandpass (CTBP) ΣΔ modulator in combination with Manchester coder and decoder, is presented. The top level post-layout transistor level simulation and experimental results with circuit details are shown. An example of a noise shaped signal up-converted to a higher frequency range while preserving the noise shaping effect is demonstrated. The circuit typically consumes 3.3 mW while powered from 1.2 V power supply, and occupies area of 410 × 430 μm. A 1:3 ratio tuneable differential g_m stage that typically consumes 250 μ, W is used as a basic building block. Suitability of the proposed architecture is discussed within the context of frequency-hopping and software-defined radio.

Keywords

CMOS integrated circuits; band-pass filters; codecs; continuous time filters; delta-sigma modulation; frequency convertors; frequency hop communication; software radio; CMOS technology; Manchester codec; continuous-time bandpass delta-sigma upconverter; frequency hopping radio; frequency up-convertor circuit; noise shaping effect; post-layout transistor level simulation; power 250 muW; power 3.3 mW; size 0.13 mum; size 410 mum; size 430 mum; software-defined radio; voltage 1.2 V; CMOS integrated circuits; Clocks; Codecs; Delay; Frequency modulation; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Computers and Signal Processing (PacRim), 2011 IEEE Pacific Rim Conference on

Conference_Location

Victoria, BC

ISSN

1555-5798

Print_ISBN

978-1-4577-0252-5

Electronic_ISBN

1555-5798

Type

conf

DOI

10.1109/PACRIM.2011.6032882

Filename

6032882