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Author:   Roberts ,  Taenzler ,  Burns
Publisher:   Oxford University Press Inc
Imprint:   Oxford University Press Inc
Edition:   2nd Revised ed.
Dimensions:   Width: 19.60cm , Height: 3.60cm , Length: 23.60cm
Weight:   1.486kg
ISBN:  

9780199796212

ISBN 10:   0199796211
Pages:   864
Publication Date:   14 October 2011
Audience:   Professional and scholarly ,  Professional & Vocational
Format:   Hardback
Publisher's Status:   Unknown
Availability:   Awaiting stock  

Table of Contents

Table of Contents Preface CHAPTER 1. OVERVIEW OF MIXED-SIGNAL TESTING 1 1.1 MIXED-SIGNAL CIRCUITS 1 1.1.1 Analog, Digital, or Mixed-Signal? 1 1.1.2 Common Types of Analog and Mixed-Signal Circuits 2 1.1.3 Applications of Mixed-Signal Circuits 3 1.2 WHY TEST MIXED-SIGNAL DEVICES? 5 1.2.1 The CMOS Fabrication Process 5 1.2.2 Real-World Circuits 6 1.2.3 What Is a Test Engineer? 8 1.3 POST-SILICON PRODUCTION FLOW 9 1.3.1 Test and Packaging 9 1.3.2 Characterization versus Production Testing 10 1.4 TEST AND DIAGNOSTIC EQUIPMENT 10 1.4.1 Automated Test Equipment 10 1.4.2 Wafer Probers 12 1.4.3 Handlers 12 1.4.4 E-Beam Probers 13 1.4.5 Focused Ion Beam Equipment 13 1.4.6 Forced-Temperature Systems 13 1.5 NEW PRODUCT DEVELOPMENT 13 1.5.1 Concurrent Engineering 13 1.6 MIXED-SIGNAL TESTING CHALLENGES 15 1.6.1 Time to Market 15 1.6.2 Accuracy, Repeatability, and Correlation 15 1.6.3 Electromechanical Fixturing Challenges 15 1.6.4 Economics of Production Testing 16 CHAPTER 2. TESTER HARDWARE 19 2.1 MIXED-SIGNAL TESTER OVERVIEW 19 2.1.1 General-Purpose Testers versus Focused Bench Equipment 19 2.1.2 Generic Tester Architecture 19 2.2 DC RESOURCES 20 2.2.1 General-Purpose Multimeters 20 2.2.2 General-Purpose Voltage/Current Sources 23 2.2.3 Precision Voltage References and User Supplies 24 2.2.4 Calibration Source 24 2.2.5 Relay Matrices 24 2.2.6 Relay Control Lines 25 2.3 DIGITAL SUBSYSTEM 26 2.3.1 Digital Vectors 26 2.3.2 Digital Signals 26 2.3.3 Source Memory 27 2.3.4 Capture Memory 27 2.3.5 Pin Card Electronics 27 2.3.6 Timing and Formatting Electronics 29 2.4 AC SOURCE AND MEASUREMENT 32 2.4.1 AC Continuous Wave Source and AC Meter 32 2.4.2 Arbitrary Waveform Generators 32 2.4.3 Waveform Digitizers 33 2.4.4 Clocking and Synchronization 34 2.5 TIME MEASUREMENT SYSTEM 35 2.5.1 Time Measurements 35 2.5.2 Time Measurement Interconnects 35 2.6 RF-SUBSYSTEM 36 2.6.1 Source Path 36 2.6.2 Measurement Path 37 2.7 COMPUTING HARDWARE 37 2.7.1 User Computer 37 2.7.2 Tester Computer 38 2.7.3 Array Processors and Distributed Digital Signal Processors 38 2.7.4 Network Connectivity 39 2.8 SUMMARY 39 CHAPTER 3. DC AND PARAMETRIC MEASUREMENTS 41 3.1 CONTINUITY 41 3.1.1 Purpose of Continuity Testing 41 3.1.2 Continuity Test Technique 41 3.1.3 Serial versus Parallel Continuity Testing 44 3.2 LEAKAGE CURRENTS 46 3.2.1 Purpose of Leakage Testing 46 3.2.2 Leakage Test Technique 46 3.2.3 Serial versus Parallel Leakage Testing 46 3.3 POWER SUPPLY CURRENTS 47 3.3.1 Importance of Supply Current Tests 47 3.3.2 Test Techniques 47 3.4 DC REFERENCES AND REGULATORS 48 3.4.1 Voltage Regulators 48 3.4.2 Voltage References 50 3.4.3 Trimmable References 50 3.5 IMPEDANCE MEASUREMENTS 51 3.5.1 Input Impedance 51 3.5.2 Output Impedance 54 3.5.3 Differential Impedance Measurements 54 3.6 DC OFFSET MEASUREMENTS 55 3.6.1 VMID and Analog Ground 55 3.6.2 DC Transfer Characteristics (Gain and Offset) 56 3.6.3 Output Offset Voltage (VO,OS) 56 3.6.4 Single-Ended, Differential, and Common-Mode Offsets 58 3.6.5 Input Offset Voltage (VIN,OS) 60 3.7 DC GAIN MEASUREMENTS 60 3.7.1 Closed-Loop Gain 60 3.7.2 Open-Loop Gain 63 3.8 DC POWER SUPPLY REJECTION RATIO 66 3.8.1 DC Power Supply Sensitivity 66 3.8.2 DC Power Supply Rejection Ratio 67 3.9 DC COMMON-MODE REJECTION RATIO 68 3.9.1 CMRR of Op Amps 68 3.9.2 CMRR of Differential Gain Stages 70 3.10 COMPARATOR DC TESTS 72 3.10.1 Input Offset Voltage 72 3.10.2 Threshold Voltage 72 3.10.3 Hysteresis 73 3.11 VOLTAGE SEARCH TECHNIQUES 74 3.11.1 Binary Searches versus Step Searches 74 3.11.2 Linear Searches 75 3.12 DC TESTS FOR DIGITAL CIRCUITS 78 3.12.1 IIH/IIL 78 3.12.2 VIH/VIL 78 3.12.3 VOH/VOL 79 3.12.4 IOH/IOL 79 3.12.5 IOSH and IOSL Short Circuit Current 79 3.13 SUMMARY 79 CHAPTER 4. DATA ANALYSIS AND PROBABILITY THEORY 83 4.1 DATA VISUALIZATION TOOLS 83 4.1.1 Datalogs (Data Lists) 83 4.1.2 Lot Summaries 84 4.1.3 Wafer Maps 86 4.1.4 Shmoo Plots 87 4.1.5 Histograms 90 4.2 STATISTICAL ANALYSIS 90 4.2.1 Mean (Average) and Standard Deviation (Variance) 90 4.2.2 Probabilities and Probability Density Functions 93 4.2.3 The Standard Gaussian Cumulative Distribution Function ?(z) 96 4.2.4 Verifying Gaussian Behavior: The Kurtosis and Normal Probability Plot 100 4.3 NON-GAUSSIAN DISTRIBUTIONS FOUND IN MIXED-SIGNAL TEST 104 4.3.1 The Uniform Probability Distribution 104 4.3.2 The Sinusoidal Probability Distribution 106 4.3.3 The Binomial Probability Distribution 109 4.4 MODELING THE STRUCTURE OF RANDOMNESS 111 4.4.1 Modeling A Gaussian Mixture Using The Expectation-Maximization Algorithm 113 4.4.2 Probabilities Associated With A Gaussian Mixture Model 118 4.5 SUMS AND DIFFERENCES OF RANDOM VARIABLES 120 4.5.1 The Central Limit Theorem 124 4.6 SUMMARY 125 CHAPTER 5 YIELD, MEASUREMENT ACCURACY AND TEST TIME 131 5.1 YIELD 131 5.2 MEASUREMENT TERMINOLOGY 133 5.2.1 Accuracy and Precision 133 5.2.2 Systematic Or Bias Errors 134 5.2.3 Random Errors 134 5.2.4 Resolution (Quantization Error) 134 5.2.5 Repeatability 135 5.2.6 Stability 136 5.2.7 Correlation 136 5.2.8 Reproducibility 138 5.3 A MATHEMATICAL LOOK AT REPEATABILITY, BIAS AND ACCURACY 138 5.4 CALIBRATIONS AND CHECKERS 145 5.4.1 Traceability to Standards 146 5.4.2 Hardware Calibration 146 5.4.3 Software Calibration 147 5.4.4 System Calibrations and Checkers 148 5.4.5 Focused Instrument Calibrations 149 5.4.6 Focused DIB Circuit Calibrations 153 5.5 TESTER SPECIFICATIONS 155 5.6 REDUCING MEASUREMENT ERROR WITH GREATER MEASUREMENT TIME 157 5.6.1 Analog Filtering 157 5.6.2 Averaging 159 5.7 GUARDBANDS 160 5.8 EFFECTS OF MEASUREMENT VARIABILITY ON TEST YIELD 165 5.9 EFFECTS OF REPRODUCIBILTY AND PROCESS VARIATION ON YIELD 167 5.10 STATISTICAL PROCESS CONTROL 171 5.10.1 Goals of SPC 171 5.10.2 Six-Sigma Quality 173 5.10.3 Process Capability, Cp, and Cpk 173 5.10.4 Gauge Repeatability and Reproducibility 175 5.11 SUMMARY 175 CHAPTER 6 DAC TESTING 181 6.1 BASICS OF DATA CONVERTERS 182 6.1.1 Principles of DAC and ADC Conversion 182 6.1.2 Data Formats 186 6.1.3 Comparison of DACs and ADCs 190 6.1.4 DAC Failure Mechanisms 191 6.2 BASIC DC TESTS 192 6.2.1 Code-Specific Parameters 192 6.2.2 Full-Scale Range 192 6.2.3 DC Gain, Gain Error, Offset, and Offset Error 192 6.2.4 LSB Step Size 195 6.2.5 DC PSS 195 6.3 TRANSFER CURVE TESTS 196 6.3.1 Absolute Error 196 6.3.2 Monotonicity 198 6.3.3 Differential Nonlinearity 198 6.3.4 Integral Nonlinearity 201 6.3.5 Partial Transfer Curves 204 6.3.6 Major Carrier Testing 204 6.3.7 Other Selected-Code Techniques 207 6.4 DYNAMIC DAC TESTS 209 6.4.1 Conversion Time (Settling Time) 209 6.4.2 Overshoot and Undershoot 210 6.4.3 Rise Time and Fall Time 210 6.4.4 DAC-to-DAC Skew 211 6.4.5 Glitch Energy (Glitch Impulse) 212 6.4.6 Clock and Data Feedthrough 212 6.5 TESTS FOR COMMON DAC APPLICATIONS 213 6.5.1 DC References 213 6.5.2 Audio Reconstruction 214 6.5.3 Data Modulation 214 6.5.4 Video Signal Generators 215 6.6 SUMMARY 215 CHAPTER 7 ADC TESTING 221 7.1 ADC TESTING VERSUS DAC TESTING 221 7.1.1 Comparison of DACs and ADCs 221 7.1.2 Statistical Behavior of ADCs 221 7.2 ADC CODE EDGE MEASUREMENTS 226 7.2.1 Edge Code Testing versus Center Code Testing 226 7.2.2 Step Search and Binary Search Methods 227 7.2.3 Servo Method 228 7.2.4 Linear Ramp Histogram Method 229 7.2.5 Conversion from Histograms to Code Edge Transfer Curves 231 7.2.6 Accuracy Limitations of Histogram Testing 232 7.2.7 Rising Ramps versus Falling Ramps 235 7.2.8 Sinusoidal Histogram Method 236 7.3 DC TESTS AND TRANSFER CURVE TESTS 244 7.3.1 DC Gain and Offset 244 7.3.2 INL and DNL 245 7.3.3 Monotonicity and Missing Codes 248 7.4 DYNAMIC ADC TESTS 249 7.4.1 Conversion Time, Recovery Time, and Sampling Frequency 249 7.4.2 Aperture Jitter 252 7.4.3 Sparkling 252 7.5 TESTS FOR COMMON ADC APPLICATIONS 253 7.5.1 DC Measurements 253 7.5.2 Audio Digitization 253 7.5.3 Data Transmission 253 7.5.4 Video Digitization 254 7.6 SUMMARY 254 CHAPTER 8 SAMPLING THEORY 259 8.1 ANALOG MEASUREMENTS USING DSP 259 8.1.1 Traditional versus DSP-Based Testing of AC Parameters 259 8.2 SAMPLING AND RECONSTRUCTION 260 8.2.1 Use of Sampling and Reconstruction in Mixed-Signal Testing 260 8.2.2 Sampling: Continuous-Time and Discrete-Time Representation 260 8.2.3 Reconstruction 264 8.2.4 The Sampling Theorem and Aliasing 269 8.2.5 Quantization Effects 271 8.2.6 Sampling Jitter 276 8.3 REPETITIVE SAMPLE SETS 283 8.3.1 Finite and Infinite Sample Sets 283 8.3.2 Coherent Signals and Noncoherent Signals 284 8.3.3 Peak-to-RMS Control in Coherent Multitones 286 8.3.4 Spectral Bin Selection 287 8.4 SYNCHRONIZATION OF SAMPLING SYSTEMS 292 8.4.1 Simultaneous Testing of Multiple Sampling Systems 292 8.4.2 ATE Clock Sources 294 8.5 SUMMARY 296 CHAPTER 9 DSP-BASED TESTING 299 9.1 ADVANTAGES OF DSP-BASED TESTING 299 9.1.1Reduced Test Time 299 9.1.2 Separation of Signal Components 299 9.1.3 Advanced Signal Manipulations 300 9.2 DIGITAL SIGNAL PROCESSING 300 9.2.1 DSP and Array Processing 300 9.2.2 Fourier Analysis of Periodic Signals 301 9.2.3 The Trigonometric Fourier Series 301 9.2.4 The Discrete-Time Fourier Series 305 9.2.5 Complete Frequency Spectrum 314 9.2.6 Time and Frequency Denormalization 318 9.2.7 Complex Form of the DTFS 319 9.3 DISCRETE-TIME TRANSFORMS 321 9.3.1 The Discrete Fourier Transform 321 9.3.2 The Fast Fourier Transform 324 9.3.3 Interpreting the FFT Output 326 9.3.4 Windowing 333 9.4 THE INVERSE FFT 345 9.4.1 Equivalence of Time- and Frequency-Domain Information 345 9.4.2 Parseval's Theorem 348 9.4.3 Frequency-Domain Filtering 349 9.4.4 Noise Weighting 350 9.5 SUMMARY 351 CHAPTER 10 ANALOG CHANNEL TESTING 359 10.1 OVERVIEW 359 10.1.1 Types Of Analog Channels 359 10.1.2 Types Of AC Parametric Tests 359 10.2 GAIN AND LEVEL TESTS 360 10.2.1 Absolute Voltage Levels 360 10.2.2 Absolute Gain and Gain Error 364 10.2.3 Gain Tracking Error 366 10.2.4 PGA Gain Tests 368 10.2.5 Frequency Response 373 10.3 PHASE TESTS 381 10.3.1 Phase Response 381 10.3.2 Group Delay and Group Delay Distortion 387 10.4 DISTORTION TESTS 389 10.4.1 Signal-to-Harmonic Distortion 389 10.4.2 Intermodulation Distortion 392 10.4.3 Adjacent Channel And Noise Power Ratio Tests 394 10.5 SIGNAL REJECTION TESTS 395 10.5.1 Common-Mode Rejection Ratio 395 10.5.2 Power Supply Rejection and Power Supply Rejection Ratio 398 10.5.3 Channel-to-Channel Crosstalk 400 10.5.4 Clock and Data Feedthrough 403 10.6 NOISE TESTS 404 10.6.1 Noise 404 10.6.2 Idle Channel Noise 405 10.6.3 Signal-to-Noise, Signal-to-Noise-and-Distortion 407 10.6.4 Spurious Free Dynamic Range 409 10.7 SUMMARY 410 CHAPTER 11 SAMPLED CHANNEL TESTING 417 11.1 OVERVIEW 417 11.1.1 What Are Sampled Channels? 417 11.1.2 Examples Of Sampled Channels 417 11.1.3 Types of Sampled Channels 420 11.2 SAMPLING CONSIDERATIONS 422 11.2.1 DUT Sampling Rate Constraints 422 11.2.2 Digital Signal Source and Capture 423 11.2.3 Simultaneous DAC and ADC Channel Testing 428 11.2.4 Mismatched Fundamental Frequencies 431 11.2.5 Reconstruction Effects in DACs, AWGs and Other Sampled-Data Circuits 434 11.3 UNDERSAMPLING AND ALIASING 439 11.3.1 Reconstructing The High-Frequency Signal From The Aliased Sample Set 441 11.4 ENCODING AND DECODING 446 11.4.1 Signal Creation and Analysis 446 11.4.2 Intrinsic (Quantization) Errors Associated With The DAC Operation 447 11.5 SAMPLED CHANNEL TESTS 451 11.5.1 Similarity to Analog Channel Tests 451 11.5.2 Absolute Level, Absolute Gain, Gain Error, and Gain Tracking 453 11.5.3 Frequency Response 457 11.5.4 Phase Response (Absolute Phase Shift) 460 11.5.5 Group Delay and Group Delay Distortion 460 11.5.6 Signal to Harmonic Distortion and Intermodulation Distortion 461 11.5.7 Crosstalk 462 11.5.8 CMRR 462 11.5.9 PSR and PSRR 463 11.5.10 Signal-to-Noise Ratio and ENOB 463 11.5.11 Idle Channel Noise 464 11.6 SUMMARY 465 CHAPTER 12 FUNDAMENTALS OF RF TESTING 469 12.1 INTRODUCTION TO RF TESTING 469 12.2 SCALAR VERSUS VECTOR MEASURES 471 12.2.1 Wave Definition of Electrical Signals 471 12.2.1 Measures of Electrical Waves 472 12.2.2 Power Definition 475 12.2.3 Crest Factor 478 12.2.4 Power in dBm 482 12.2.5 Power Transfer 482 12.2.6 Conjugate and Reflectionless Matching 486 12.2.7 Power Loss Metrics 487 12.3 NOISE 489 12.3.1 Amplitude Noise 490 12.3.2 Noise Figure 493 12.3.3 Phase Noise 495 12.4 S-PARAMETERS 503 12.4.1 Principles of S-Parameters Of A Two-Port Network 504 12.4.2 Scalar Representation of S-Parameters 508 12.5 MODULATION 525 12.5.1 Analog Modulation 525 12.5.2 Digital Modulation 533 12.5.3 Quadrature Amplitude Modulation 536 12.5.4 Orthogonal Frequency Division Multiplexing 536 12.6 SUMMARY 538 CHAPTER 13 RF TEST METHODS 543 13.1 SCALAR MEASUREMENT METHODS 544 13.1.1 Principles Of A Scalar Power Measurement 544 13.1.2 Gain Measurement 550 13.1.3 Scalar Power Measures Versus Time 559 13.1.4 Intermodulation Measurement 560 13.1.5 Compression Point Measurement 566 13.2 S-PARAMETER MEASUREMENTS 571 13.2.1 Principles Of A Directional Coupler 571 13.2.2 Directional Couplers On An Ate 573 13.3 NOISE FIGURE AND NOISE FACTOR 574 13.3.1 Noise Figure And Noise Factor Definition 574 13.3.2 Noise Measurement Technique With The Y-Factor Method 577 13.3.3 Noise Measurement Technique With The Cold Noise Method 579 13.3.4 Comparison Of The Noise Figure Test Methods 579 13.4 PHASE NOISE 582 13.4.1 Measuring Phase Noise Using Spectral Analysis 584 13.4.2 PLL-Based Phase Noise Test Method 588 13.4.3 Delay-Line Phase Noise Test Method 590 13.5 VECTOR SIGNAL ANALYSIS 592 13.5.1 In-Phase And Quadrature Signal Representation 593 13.5.2 Test Of Relative Phase 597 13.5.3 Error Vector Magnitude Test Method 599 13.5.4 Adjacent Channel Power Tests 601 13.5.5 Transmit Mask 604 13.5.6 Bit Error Rate 605 13.6 SUMMARY 607 CHAPTER 14 CLOCK AND SERIAL DATA COMMUNICATIONS CHANNEL MEASUREMENTS 613 14.1 SYNCHRONOUS AND ASYNCHRONOUS COMMUNICATIONS 613 14.2 TIME-DOMAIN ATTRIBUTES OF A CLOCK SIGNAL 615 14.3 FREQUENCY-DOMAIN ATTRIBUTES OF A CLOCK SIGNAL 620 14.4 COMMUNICATING SERIALLY OVER A CHANNEL 626 14.4.1 Ideal Channel 627 14.4.2 Real Channel Effects 630 14.4.3 Impact of Decision Levels On Receiver Performance 635 14.5 BIT ERROR RATE MEASUREMENT 640 14.5.1 PRBS Test Patterns 647 14.6 METHODS TO SPEED UP BER TESTS IN PRODUCTION 651 14.6.1 Amplitude-Based Scan Test 651 14.6.2 Time-Based Scan Test 658 14.6.3 Dual-Dirac Jitter Decomposition Method 660 14.6.4 Gaussian Mixture Jitter Decomposition Method 668 14.7 DETERMINISTIC JITTER DECOMPOSITION 674 14.7.1 Period And Sinusoidal Jitter (PJ/SJ): 674 14.7.2 Data Dependent Jitter (DDJ): 677 14.7.3 Bounded and Uncorrelated Jitter (BUJ): 679 14.8 JITTER TRANSMISSION TESTS 685 14.8.1 Jitter Transfer Test 685 14.8.2 Jitter Tolerance Test 696 14.9 SUMMARY 703 CHAPTER 15 TESTER INTERFACING - DIB DESIGN 713 15.1 DIB BASICS 713 15.1.1 Purpose of a Device Interface Board 713 15.1.2 DIB Configurations 714 15.1.3 Importance of Good DIB Design 716 15.2 PRINTED CIRCUIT BOARDS 716 15.2.1 Prototype DIBs versus PCB DIBs 716 15.2.2 PCB CAD Tools 717 15.2.3 Multilayer PCBs 718 15.2.4 PCB Materials 719 15.3 DIB TRACES, SHIELDS, AND GUARDS 720 15.3.1 Trace Parasitics 720 15.3.2 Trace Resistance 720 15.3.3 Trace Inductance 721 15.3.4 Trace Capacitance 726 15.3.5 Shielding 733 15.3.6 Driven Guards 733 15.4 TRANSMISSION LINES 735 15.4.1 Various TEM Transmission Line Configurations 735 15.4.2 Transmission Line Discontinuities 737 15.4.3 Lumped- and Distributed-Element Models 738 15.4.4 Transmission Line Termination 742 15.4.5 Parasitic Lumped Elements 747 15.5 IMPEDANCE MATCHING TECHNIQUES FOR RF DIB 748 15.5.1 Introduction To The Smith Chart 749 15.5.2 Impedance Smith Chart 750 15.5.3 Admittance Smith Chart 753 15.5.4 Immitance Smith Chart 754 15.5.5 Impedance Transformation With Discrete Components On Smith Chart 754 15.5.6 Impedance Matching With A Series And Shunt Component Using The Immitance Smith Chart 758 15.6 GROUNDING AND POWER DISTRIBUTION 761 15.6.1 Grounding 761 15.6.2 Power Distribution 763 15.6.3 Power and Ground Planes 763 15.6.4 Ground Loops 766 15.7 DIB COMPONENTS 767 15.7.1 DUT Sockets and Contactor Assemblies 767 15.7.2 Contact Pads, Pogo Pins, and Socket Pins 768 15.7.3 Electromechanical Relays 770 15.7.4 Socket Pins 773 15.7.5 Resistors 774 15.7.6 Capacitors 775 15.7.7 Inductors and Ferrite Beads 779 15.7.8 Transformers and Power Splitters 783 15.8 COMMON DIB CIRCUITS 784 15.8.1 Analog Buffers (Voltage Followers) 784 15.8.2 Instrumentation Amplifiers 784 15.8.3 VMID Reference Adder 786 15.8.4 Current-to-Voltage and Voltage-to-Current Conversions 786 15.8.5 Power Supply Ripple Circuits 787 15.9 COMMON DIB MISTAKES 790 15.9.1 Poor Power Supply and Ground Layout 790 15.9.2 Crosstalk 790 15.9.3 Transmission Line Discontinuities 791 15.9.4 Resistive Drops in Circuit Traces 791 15.9.5 Tester Instrument Parasitics 792 15.9.6 Oscillations in Active Circuits 792 15.9.7 Poor DIB Component Placement and PCB Layout 792 15.10 SUMMARY 793 CHAPTER 16 DESIGN-FOR-TEST (DfT) 797 16.1 OVERVIEW 797 16.1.1 What Is DfT? 797 16.1.2 Built-In Self-Test 798 16.1.3 Differences between Digital DfT and Analog DfT 798 16.1.4 Why Should We Use DfT? 799 16.2 ADVANTAGES OF DfT 799 16.2.1 Lower Cost of Test 799 16.2.2 Increased Fault Coverage and Improved Process Control 801 16.2.3 Diagnostics and Characterization 801 16.2.4 System-Level Diagnostics 802 16.3 DIGITAL SCAN 802 16.3.1 Scan Basics 802 16.3.2 IEEE Std. 1149.1 Standard Test Access Port and Boundary Scan 804 16.3.3 Full Scan and Partial Scan 806 16.4 DIGITAL BIST 808 16.4.1 Pseudorandom BILBO Circuits 808 16.4.2 Memory BIST 809 16.4.3 Microcode BIST 810 16.5 DIGITAL DfT FOR MIXED-SIGNAL CIRCUITS 811 16.5.1 Partitioning 811 16.5.2 Digital Resets and Presets 812 16.5.3 Device-Driven Timing 813 16.6 MIXED-SIGNAL BOUNDARY SCAN AND BIST 814 16.6.1 Mixed-Signal Boundary Scan (IEEE Std. 1149.4) 814 16.6.2 Analog and Mixed-Signal BIST 817 16.7 AD HOC MIXED-SIGNAL DfT 819 16.7.1 Common Concepts 819 16.7.2 Accessibility of Analog Signals 819 16.7.3 Analog Test Buses, T-Switches, and Bypass Modes 821 16.7.4 Separation of Analog and Digital Blocks 823 16.7.5 Loopback Modes 825 16.7.6 Precharging Circuits and AC Coupling Shorts 826 16.7.7 On-Chip Sampling Circuits 827 16.7.8 PLL Testability Circuits 827 16.7.9 DAC and ADC Converters 829 16.8 RF DfT 830 16.8.1 RF Loop-back test 830 16.8.2 RF BIT and BIST 831 16.8.3 Correlation-based Test 833 16.9 SUMMARY 837 APPENDIX 843 PROBLEM ANSWERS 845 INDEX

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Gordon Roberts is James McGill Professor in the Department of Electrical and Computer Engineering at McGill University. He has conducted extensive research on analog integrated circuit design and mixed-signal test issues. Dr. Roberts has published numerous papers at IEEE conferences, coauthored several textbooks related to mixed-signal test and analog integrated circuit design (including SPICE, Second Edition, with Adel Sedra, OUP, 1996), and contributed various specialized volumes to other books. Friedrich Taenzler is an RF-Engineering Manager at Texas Instruments and a major contributor in the field of RF testing and design. Mark Burns is a former TI fellow at Texas Instruments and an accomplished expert in mixed-signal IC test and measurement area.

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