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Bit Synchronization

"Bit Synchronization Talk 1988," J.A. Crawford.

"Cair Bit Synchronizer Project 1990," J.A. Crawford.

Chapter 10 in Advanced Phase-Lock Techniques is devoted entirely to bit synchronization.

Communication Systems

"Multimode RF Transceiver Advances WEDGE Radio System," J.A. Crawford, rf design, January 2007.

"Computed Symbol Error Rate for Square QAM with Phase Noise," J.A. Crawford.

"Satellite Doppler with Type-3 PLL Tracking," J.A. Crawford.

Digital Signal Processing

"Approximation for Root( I² + Q²)," J.A. Crawford.

"Optimum Eigenfilter Design Methodology," J.A. Crawford.

"Computing Data Windows Recursively," J.A. Crawford

Miscellaneous

"Dreaded Interview Questions- Part I," J.A. Crawford.

"Start-Up Company: Opportunity or Just a Job?", J.A. Crawford, Dec. 2003.

"Pendulums and Elliptic Integrals," J.A. Crawford.

"Random Variable Sums and the Central Limit Theorem," J.A. Crawford, Feb. 2005.

"Current Flow in a Conductive Sheet," J.A. Crawford, May. 2008.

Don't miss the Project section.

Modems

GMSK Modem for RAM (1990), J.A. Crawford.

OFDM

"Making OFDM Work for High-Performance Wireless Networks," J.A. Crawford (from Magis Networks website).

Oscillators

"A Low Noise Oscillator," Masters Thesis, June 1967, E. Janning.

"VCOs for Mobile Communications," H. Yabuki, M. Sagawa, M. Makimoto.

"Low Noise Oscillator Design," R. Muat, A. Upham, Hewlett Packard (circa 1981).

"A Simple Analytic Method for Transistor Oscillator Design,"  A. Grebennikov.

"Fundamentals of Quartz Oscillators," Application Note 200-2, Hewlett-Packard.

Chapter 9 of Advanced Phase-Lock Techniques is devoted entirely to oscillators.

Phase Noise

"Extending the Range and Accuracy of Phase Noise Measurements," F.L. Walls, et al., NIST.

"The Art of Phase Noise Measurement," D. Scherer, May 1983.

"PLL Phase Noise Performance Assessment (Example),",J.A. Crawford.

"Low Noise Frequency Synthesis," F.L. Walls, C.M. Felton, NIST.

"Design Principles and Test Methods for Low Phase Noise RF and Microwave Sources," D. Scherer, 1980.

"Generation of Low Phase Noise Microwave Signals," Dieter Scherer, Sept. 1981.

"Phase Noise Measurement,"  Lance, A., Seal, W., TRW.

Phase-Lock Loops

"PLL Terminology," J.A. Crawford, Jan. 2008.

"Digital Redesign of Continuous-Time Phase-Locked Loops," J.A. Crawford, April 2005.

"Phase-Locked Loops- A Broad Perspective (Part I). " J.A. Crawford, May 2004.

Worksheet for Part I, J.A. Crawford       (Mathcad File)

Link to Paper on CommsDesign

"Phase-Locked Loops- A Broad Perspective (Part II)." J.A. Crawford, May 2004.

Worksheet for Part II, J.A. Crawford

Link to Paper on CommsDesign

"Introduction to Phase-Locked Loop System Modeling,"  Wen Li, Jason Meiners

"Phase-Locked Loop Design Fundamentals," Motorola, AN535 (Classic)

"GMSK Translation Phase-Locked Loop," J.A. Crawford

Radio Design

Excerpts from U.S. Air Force SBIR 1992 "Advanced Manpack Satellite Terminal." J.A. Crawford Principal Investigator Part I,   Part II.

"CMOS Frequency-Hopped Transceiver,"  Behbahani, et al.

"Receiver Architectures,"  Renfors, M.

RF Design

"Coaxial Line and 50 Ohms," J.A. Crawford.

ISSCC 2003 Abstract

"A Multiple Antenna 5 GHz OFDM Single-Chip SiGe BiCMOS Transciever for Wireless HDTV and Data Distribution," ISSCC 2003.

ISSCC 2003 Figures

"Bartlett's Bisection Theorem for Electrical Filters," J.A. Crawford

Frequency Synthesizer Design

"Charge-Pump Noise Models for PLLs," J.A. Crawford.

"Understanding the Specifics of Sampling in Synthesis- Part I," J.A. Crawford,  Microwaves, Aug. 1984.

"Extending Sampling to Type-2 Phase-Locked Loops- Part II," J.A. Crawford,  Microwaves, Sept. 1984 .

"The Misunderstood Phase/Frequency Detector," rf design, J.A. Crawford,  Feb. 1985.

"Synthesizer Designs Minimize Phase Noise in Celluar Systems," J.A. Crawford,  Microwaves & RF, Jan. 1993.

"MACSET: Macroscopic Modeling of Phase-Locked Loops Used for Frequency Synthesis," J.A. Crawford, 1988.

"The Phase-Locked Loop Concept for Frequency Synthesis," J.A. Crawford, 1987.

"Phase-Locked Loop Concept for Synthesis- Time Domain ," J.A. Crawford, 1987.

"Effects of Small Contaminating Signals in Nonlinear Elements Used in Frequency Synthesis and Conversion," W.F. Egan, July 1981 (Reprinted in Frequency Stability: Fundamentals and Measurement, 1983, IEEE Press.

"A GSM Modulator Using a Delta-Sigma Frequency Discriminator Based Synthesizer," W.T. Bax.

"Phase-Locked Loop Phase Noise Assessment," J.A. Crawford.

"PLL Basics- Loop Filter Design," Fujitsu.

"Derivation of the Fractional-N Phase Noise Formula," J.A. Crawford

WLAN

"Multimedia Over Wireless Home Networks,"  J.A. Crawford, D.N. Critchlow, October 2003, presented at Fall 2003 Communication Design Conference (Power Point Slides).

"Multimedia Over Wireless Home Networks,"  J.A. Crawford, D.N. Critchlow, October 2003, presented at Fall 2003 Communication Design Conference (Paper).