Book description
How to acquire the input frequency from an unlocked state
A phase locked loop (PLL) by itself cannot become useful until it has
acquired the applied signal's frequency. Often, a PLL will never reach
frequency acquisition (capture) without explicit assistive circuits.
Curiously, few books on PLLs treat the topic of frequency acquisition
in any depth or detail. Frequency Acquisition Techniques for Phase
Locked Loops offers a no-nonsense treatment that is equally
useful for engineers, technicians, and managers.
Since mathematical rigor for its own sake can degenerate into
intellectual "rigor mortis," the author introduces readers
to the basics and delivers useful information with clear language and
minimal mathematics. With most of the approaches having been developed
through years of experience, this completely practical guide explores
methods for achieving the locked state in a variety of conditions as
it examines:
- Performance limitations of phase/frequency detector-based phase
locked loops
- The quadricorrelator method for both continuous and sampled modes
- Sawtooth ramp-and-sample phase detector and how its waveform
contains frequency error information that can be extracted
- The benefits of a self-sweeping, self-extinguishing topology
- Sweep methods using quadrature mixer-based lock detection
- The use of digital implementations versus analog
Frequency Acquisition Techniques for Phase Locked Loops is an
important resource for RF/microwave engineers, in particular, circuit
designers; practicing electronics engineers involved in frequency
synthesis, phase locked loops, carrier or clock recovery loops,
radio-frequency integrated circuit design, and aerospace electronics;
and managers wanting to understand the technology of phase locked
loops and frequency acquisition assistance techniques or jitter
attenuating loops.
DANIEL B. TALBOT currently runs a product development business
specializing in RF/analog engineering. He has years of industry
experience as a chief technical engineer at DBX Corporation, LTX
Corporation, and a principal or research engineer or equivalent at
Raytheon, RCA David Sarnoff Labs, General Instrument, and several
other aerospace and commercial electronics firms; has been granted
eight U. S. patents in the field of RF/analog/fiber optic engineering;
and is an elected Fellow of the Audio Engineering Society and a Life
Member of the IEEE.
