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Informationen zum Autor Ralph Morrison is a consultant and lecturer in the area of interference control and electronics. He has thirty years of design and consulting experience, was president of Instrum for more than a decade, and has authored Noise and Other Interfering Signals , Grounding and Shielding in Facilities , and Solving Interference Problems in Electronics , all from Wiley. Klappentext A unique, practical approach to the design of high-speed digital circuit boardsThe demand for ever-faster digital circuit designs is beginning to render the circuit theory used by engineers ineffective. Digital Circuit Boards presents an alternative to the circuit theory approach, emphasizing energy flow rather than just signal interconnection to explain logic circuit behavior.The book shows how treating design in terms of transmission lines will ensure that the logic will function, addressing both storage and movement of electrical energy on these lines. It covers transmission lines in all forms to illustrate how trace geometry defines where the signals can travel, then goes on to examine transmission lines as energy sources, the true nature of decoupling, types of resonances, ground bounce, cross talk, and more.Providing designers with the tools they need to lay out digital circuit boards for fast logic and to get designs working the first time around, Digital Circuit Boards:* Reviews in simple terms the basic physics necessary to understand fast logic design* Debunks the idea that electrical conductors carry power and signals, showing that signal travels in the spaces, not the traces, of circuit boards* Explains logic circuit behavior through real-time analysis involving the fields and waves that carry signal and energy* Provides new information on how ground/power planes work* Outlines a software program for solving energy flow in complex networks Zusammenfassung This book features a unique, practical approach to the design of high-speed digital circuit boards. It provides designers with the tools they need to lay out digital circuit boards for fast logic and to get designs working the first time around. Inhaltsverzeichnis Preface xi 1 BASICS 1 1.1 Introduction 1 1.2 Why the Field Approach is Important 3 1.3 The Role of Circuit Analysis 4 1.4 Getting Started 5 1.5 Voltage and the Electric Field 6 1.6 Current 7 1.7 Capacitance 8 1.8 Mutual and Self-Capacitance 10 1.9 E Fields Inside Conductors 11 1.10 The D Field 12 1.11 Energy Storage in a Capacitor 12 1.12 The Energy Stored in an Electric Field 13 1.13 The Magnetic Field 13 1.14 Rise Time/Fall Time 15 1.15 Moving Energy into Components 15 1.16 Faraday's Law 16 1.17 Self- and Mutual Inductance 16 1.18 Poynting's Vector 17 1.19 Fields at DC 18 2 TRANSMISSION LINES 22 2.1 Introduction 22 2.2 Some Common Assumptions 24 2.3 Transmission Line Types 25 2.4 Characteristic Impedance 27 2.5 Wave Velocity 29 2.6 Step Waves on a Properly Terminated Line 30 2.7 The Open Circuited Transmission Line 31 2.8 The Short Circuited Transmission Line 33 2.9 Waves that Transition between Lines with Different Characteristic Impedances 35 2.10 Nonlinear Terminations 38 2.11 Discharging a Charged Open Transmission Line 38 2.12 Ground/Power Planes 40 2.13 The Ground and Power Planes as a Tapered Transmission Line 41 2.14 Pulling Energy from a Tapered Transmission Line (TTL) 43 2.15 The Energy Flow Through Cascaded (Series) Transmission Lines 45 2.16 An Analysis of Cascaded Transmission Lines 48 2.17 Series (Source) Terminating a Transmission Line 49 2.18 Parallel (Shunt) Terminations 50 2.19 Stubs 52 2.20 Decoup...
