D
David Murphy
Researcher at Broadcom
Publications - 50
Citations - 1882
David Murphy is an academic researcher from Broadcom. The author has contributed to research in topics: Noise figure & Phase noise. The author has an hindex of 18, co-authored 50 publications receiving 1542 citations. Previous affiliations of David Murphy include Avago Technologies & University of California, Los Angeles.
Papers
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Journal ArticleDOI
A Blocker-Tolerant, Noise-Cancelling Receiver Suitable for Wideband Wireless Applications
David Murphy,Hooman Darabi,Asad A. Abidi,Amr Amin Hafez,A. Mirzaei,Mohyee Mikhemar,Mau-Chung Frank Chang +6 more
TL;DR: A new wideband receiver architecture is proposed that employs two separate passive-mixer-based downconversion paths, which enables noise cancelling, but avoids voltage gain at blocker frequencies.
Journal ArticleDOI
Architectural Evolution of Integrated M-Phase High-Q Bandpass Filters
TL;DR: High-Q BPFs whose center frequencies are equal to the sum or difference of the RF and IF (intermediate frequency) clocks are presented and can be useful in heterodyne receiver architectures.
Journal ArticleDOI
Phase Noise in LC Oscillators: A Phasor-Based Analysis of a General Result and of Loaded $Q$
TL;DR: This work analyzes the negative-gm LC model and presents a simple equation that quantifies output noise resulting from phase fluctuations, and derives an expression for output Noise resulting from amplitude fluctuations.
Proceedings ArticleDOI
A blocker-tolerant wideband noise-cancelling receiver with a 2dB noise figure
David Murphy,Amr Amin Hafez,Ahmad Mirzaei,Mohyee Mikhemar,Hooman Darabi,Mau-Chung Frank Chang,Asad A. Abidi +6 more
TL;DR: A hybrid frequency-translational, noise-cancelling (FTNC) receiver that employs two separate down-conversion paths to enable noise cancelling with no voltage gain prior to base-band filtering, breaking the traditional noise-linearity trade-off common in all receivers.
Journal ArticleDOI
Implicit Common-Mode Resonance in LC Oscillators
TL;DR: It is demonstrated that additional inductors are not strictly necessary by showing that common-mode resonance can be obtained using a single tank, and an NMOS architecture that uses a single differential inductor and a CMOS design that use a single transformer are presented.