Product manual

TABLE OF CONTENTS
CHAPTER 1 SCOPE ............................................................................................................................. 1
1.1 USER DEFINITION .............................................................................................................................. 1
1.2 M
ANUAL ORGANIZATION .................................................................................................................. 1
1.3 USB .................................................................................................................................................... 1
1.4 R
EFERENCE ........................................................................................................................................ 2
CHAPTER 2 DESCRIPTION ............................................................................................................. 3
2.1 INTRODUCTION .................................................................................................................................. 3
2.2 KEY FEATURES .................................................................................................................................. 3
2.3 S
TANDARDS AND REGULATIONS....................................................................................................... 4
2.4 H
ARDWARE REQUIREMENTS............................................................................................................. 4
CHAPTER 3 SPECIFICATIONS ....................................................................................................... 5
3.1 SPECIFICATION SUMMARY ................................................................................................................ 5
3.2 P
HYSICAL SPECIFICATIONS ............................................................................................................... 5
3.3 L
OGICAL CONFIGURATIONS.............................................................................................................. 5
3.4 PERFORMANCE SPECIFICATIONS ..................................................................................................... 6
3.5 P
OWER CONSUMPTION ..................................................................................................................... 7
3.6 E
NVIRONMENTAL SPECIFICATIONS ............................................................................................... 8
3.7 R
ELIABILITY SPECIFICATIONS ....................................................................................................... 9
CHAPTER 4 INSTALLATION......................................................................................................... 10
4.1 SPACE REQUIREMENTS................................................................................................................... 10
4.2 U
NPACKING INSTRUCTIONS............................................................................................................ 10
4.3 MOUNTING ...................................................................................................................................... 10
4.3.1 Orientation...................................................................................................................... 11
4.3.2 Ventilation ...................................................................................................................... 11
4.4 C
ABLE CONNECTORS....................................................................................................................... 12
4.4.1 USB Connectivity............................................................................................................ 12
4.5 D
RIVE INSTALLATION...................................................................................................................... 12
4.6 S
YSTEM STARTUP PROCEDURE ....................................................................................................... 13
CHAPTER 5 DISK DRIVE OPERATION........................................................................................ 14
5.1 HEAD / DISK ASSEMBLY (HDA) ...................................................................................................... 14
5.1.1 Base Casting Assembly ................................................................................................... 14
5.1.2 DC Spindle Motor Assembly ........................................................................................... 14
5.1.3 Disk Stack Assembly ....................................................................................................... 14
5.1.4 Head Stack Assembly ...................................................................................................... 14
5.1.5 Voice Coil Motor and Actuator Latch Assemblies ......................................................... 15
5.1.6 Air Filtration System....................................................................................................... 15
5.1.7 Load/Unload Mechanism................................................................................................ 16
5.2 D
RIVE ELECTRONICS ....................................................................................................................... 16
5.2.1 Digital Signal Process and Interface Controller ............................................................ 16
5.2.2 USB Interface Controller................................................................................................ 16
5.2.2.1 The Host Interface Control Block ................................................................................................. 16
5.2.2.2 The Buffer Control Block ............................................................................................................. 17
5.2.2.3 The Disk Control Block ................................................................................................................ 17
5.2.2.4 The Disk ECC Control Block........................................................................................................ 17
5.2.2.5 Power Management....................................................................................................................... 17
5.2.3 Read/Write IC ................................................................................................................. 18
5.2.3.1 Time Base Generator.......................................................................................................................... 18
5.2.3.2 Automatic Gain Control ..................................................................................................................... 18
5.2.3.3 Asymmetry Correction Circuitry (ASC) ............................................................................................ 18
5.2.3.4 Analog Anti-Aliasing Low Pass Filter ................................................................................................ 18
5.2.3.5 Analog to Digital Converter (ADC) and FIR ...................................................................................... 18
5.3 SERVO SYSTEM ................................................................................................................................ 20
5.4 R
EAD AND WRITE OPERATIONS ...................................................................................................... 20
5.4.1 The Read Channel........................................................................................................... 20
5.4.2 The Write Channel .......................................................................................................... 20