Frequency Acquisition Techniques for Phase Locked Loops

Description

How to acquire the input frequency from an unlocked stateA 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 loopsThe quadricorrelator method for both continuous and sampled modesSawtooth ramp-and-sample phase detector and how its waveform contains frequency error information that can be extractedThe benefits of a self-sweeping, self-extinguishing topologySweep methods using quadrature mixer-based lock detectionThe use of digital implementations versus analogFrequency 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.Errata can be found by visiting the Book Support Site at: http://booksupport.wiley.comContent: Chapter 1 Introduction (pages 1–2): Chapter 2 A Review of PLL Fundamentals (pages 3–15): Chapter 3 Simulating the PLL Linear Operation Mode (pages 17–20): Chapter 4 Sideband Suppression Filtering (pages 21–23): Chapter 5 Pros and Cons of Sampled Data Phase Detection (pages 25–32): Chapter 6 Phase Compression (pages 33–34): Chapter 7 Hard Limiting of a Signal Plus Noise (pages 35–37): Chapter 8 Phase Noise and Other Spurious Interferers (pages 39–46): Chapter 9 Impulse Modulation and Noise Aliasing (pages 47–51): Chapter 10 Time and Phase Jitter, Heterodyning, and Multiplication (pages 53–56): Chapter 11 Carrier Recovery Applications and Acquisition (pages 57–72): Chapter 12 Notes on Sweep Methods (pages 73–83): Chapter 13 Nonsweep Acquisition Methods (pages 85–103): Chapter 14 AM Rejection in Frequency Detection Schemes (pages 105–118): Chapter 15 Interfacing the Frequency Discriminator to the PLL (pages 119–124): Chapter 16 Actual Frequency Discriminator Implementations (pages 125–143): Chapter 17 Clock Recovery Using a PLL (pages 145–164): Chapter 18 Frequency Synthesis Applications (pages 165–194): Chapter 19 Injection Pulling of Multiple VCO's as in a Serdes (pages 195–197): Chapter 20 Digital PLL Example (pages 199–202): Chapter 21 Conclusion (pages 203–204):