Signals and Measurements for Disk Drive Design

Table of Contents

Preface

Introduction

1. The Read Channel Signal

2. Creating the Transition Response

3. Creating the Data Pattern

4. Merging the Transition Response with the Data Pattern

5. Appending Other Data to the Waveform

6. Inserting Amplitude Variations

Creating Missing/Extra Bits

Building a 1M-Point Waveform Sequence

Simulating Mechanical Shock

Simulating Residual 1F Amplitude After 2F Overwrite

Using a Filter to Modify Amplitude Characteristics

Using an FFT to Modify Amplitude Characteristics

7. Inserting Noise Impairments

Using the AWG Noise Waveform

Verifying Read Channel Frequency Response

Simulating Signal-to-Noise Ratios

Making Coherent Noise More "Random"

8. Inserting Timing Impairments

Simulating Peak Shift (Jitter)

Simulating Frequency Shift to Verify Clock Recovery Loops

"Beating the Spec" to Achieve Higher Resolution

9. Appendices

Related Tektronix Publications

Addendum--Region Shift

Tektronix Product Features & Specifications