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Dive into the research topics where Brett C. Walker is active.

Publication


Featured researches published by Brett C. Walker.


custom integrated circuits conference | 2003

Analysis of spectral spreading in a phase-modulated system for 1.75-GHz GSM RF transmitter design

Hyunchol Shin; Brett C. Walker; Dangling Pan; Jeremy D. Dunworth; James Jaffee

An efficient and accurate analysis method to calculate the spectral spreading of a phase-modulated signal is presented. It accounts for two major non-idealities in a phase modulated system; (1) the phase error caused by circuit nonlinearity, (2) the additive spreading caused by LO spurious operation. The proposed method requires only a single-tone intermodulation simulation to fully characterize the spectral spreading in a phase-modulated system. Its accuracy is verified by comparing with the measurement results of a 1.75 GHz GSM RF transmitter.


Archive | 2002

Direct conversion receiver architecture

Tao Li; Christian Holenstein; Inyup Kang; Brett C. Walker; Paul E. Peterzell; Raghu Challa; Matthew L. Severson; Arun Raghupathy; Gilbert C. Sih


IEEE Journal of Solid-state Circuits | 2007

A Highly Integrated Power Management IC for Advanced Mobile Applications

Chunlei Shi; Brett C. Walker; Eric Zeisel; Brian Hu; Gene H. McAllister


Archive | 2005

Serial bus interface for direct conversion receiver

Brett C. Walker; Paul E. Peterzell; Tao Li; Matthew L. Severson


Archive | 2011

OUTPUT CIRCUITS WITH CLASS D AMPLIFIER

Brett C. Walker; Song Stone Shi


Archive | 2001

Gain linearizer for variable gain amplifiers

Brett C. Walker; Eric Zeisel; Gurkanwal Singh Sahota


Archive | 2008

Calibration techniques for frequency synthesizers

Jeremy D. Dunworth; Brett C. Walker


Archive | 2001

Variable gain selection in direct conversion receiver

Tao Li; Christian Holenstein; Inyup Kang; Brett C. Walker; Paul E. Peterzell; Raghu Challa; Matthew L. Severson; Arun Raghupathy; Gilbert C. Sih


Archive | 2009

Single wire bus interface

David W. Hansquine; Brett C. Walker; Muhammad Asim Muneer


Archive | 1998

Digital-to-analog converter D.C. offset correction comparing converter input and output signals

Brett C. Walker

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