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Samsung Spinpoint D8X Mobile SATA

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Samsung Spinpoint D8X Mobile SATA D8X Product Manual 2.5” Hard Disk Drive January 20, 2016. Rev 2.2 PMD8X 100778771 Rev. E © 2015 Seagate Technology LLC. All rights reserved. Seagate and Seagate Technology are registered trademarks of Seagate Technology LLC in the United States and/or other countries. SeaTools is either a trademark or registered trademark of Seagate Technology LLC or one of its affiliated companies in the United States and/or other countries. All other trademarks or registered trademarks are the property of their respective owners. When referring to drive capacity, one gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes. Your computer’s operating system may use a different standard of measurement and report a lower capacity. In addition, some of the listed capacity is used for formatting and other functions, and thus will not be available for data storage. Actual data rates may vary depending on operating environment and other factors. The export or re-export of hardware or software containing encryption may be regulated by the U.S. Department of Commerce, Bureau of Industry and Security (for more information, visit www.bis.doc.gov), and controlled for import and use outside of the U.S. Seagate reserves the right to change, without notice, product offerings or specifications. TABLE OF CONTENTS CHAPTER 1 SCOPE .............................................................................................................................1 1.1 USER DEFINITION ..............................................................................................................................1 1.2 MANUAL ORGANIZATION ..................................................................................................................1 1.3 SATA .................................................................................................................................................2 1.4 REFERENCE ........................................................................................................................................2 CHAPTER 2 DESCRIPTION ..............................................................................................................3 2.1 INTRODUCTION ..................................................................................................................................3 2.2 KEY FEATURES ..................................................................................................................................4 2.3 STANDARDS AND REGULATIONS........................................................................................................5 2.4 HARDWARE REQUIREMENTS.............................................................................................................5 CHAPTER 3 SPECIFICATIONS ........................................................................................................6 3.1 SPECIFICATION SUMMARY ................................................................................................................6 3.2 PHYSICAL SPECIFICATIONS ...............................................................................................................7 3.3 LOGICAL CONFIGURATIONS..............................................................................................................7 3.4 PERFORMANCE SPECIFICATIONS ......................................................................................................8 3.5 POWER CONSUMPTION ......................................................................................................................9 3.6 ENVIRONMENTAL SPECIFICATIONS .................................................................................................10 3.7 RELIABILITY SPECIFICATIONS ........................................................................................................12 CHAPTER 4 INSTALLATION..........................................................................................................13 4.1 SPACE REQUIREMENTS....................................................................................................................13 4.2 UNPACKING INSTRUCTIONS.............................................................................................................14 4.3 MOUNTING .......................................................................................................................................14 4.3.1 Orientation......................................................................................................................15 4.3.2 Ventilation ......................................................................................................................16 4.4 CABLE CONNECTORS.......................................................................................................................16 4.4.1 SATA Connectivity ..........................................................................................................16 4.5 DRIVE INSTALLATION......................................................................................................................21 CHAPTER 5 DISK DRIVE OPERATION........................................................................................22 5.1 HEAD / DISK ASSEMBLY (HDA) ......................................................................................................22 5.1.1 Base Casting Assembly ...................................................................................................22 5.1.2 DC Spindle Motor Assembly...........................................................................................22 5.1.3 Disk Stack Assembly .......................................................................................................24 5.1.4 Head Stack Assembly ......................................................................................................24 5.1.5 Voice Coil Motor and Actuator Latch Assemblies ..........................................................24 5.1.6 Air Filtration System.......................................................................................................24 5.1.7 Load/Unload Mechanism................................................................................................24 5.2 DRIVE ELECTRONICS .......................................................................................................................25 5.2.1 Digital Signal Process and Interface Controller ............................................................25 5.2.2 Disk Controller ...............................................................................................................25 5.2.2.1 The Host Interface Control Block .............................................................................................. 27 5.2.2.2 The Buffer Control Block .......................................................................................................... 27 5.2.2.3 The Disk Control Block ............................................................................................................. 28 5.2.2.4 The Disk LDPC Control Block .................................................................................................. 28 5.2.2.5 Frequency Synthesizer ............................................................................................................... 28 5.2.2.6 Power Management.................................................................................................................... 29 5.2.3 Read/Write IC .................................................................................................................29 5.2.3.1 Time Base Generator.................................................................................................................. 29 5.2.3.2 Automatic Gain Control ............................................................................................................. 29 5.2.3.3 Asymmetry Correction Circuitry (ASC) .................................................................................... 29 5.2.3.4 Analog Anti-Aliasing Low Pass Filter ....................................................................................... 30 5.2.3.5 Analog to Digital Converter (ADC) and FIR ............................................................................. 30 Seagate D8X Product Manual REV 2.2 5.3 SERVO SYSTEM ................................................................................................................................31 5.4 READ AND WRITE OPERATIONS ......................................................................................................31 5.4.1 The Read Channel...........................................................................................................31 5.4.2 The Write Channel ..........................................................................................................32 5.5 FIRMWARE FEATURES .....................................................................................................................32 5.5.1 Read Caching .................................................................................................................32 5.5.2 Write Caching .................................................................................................................33 5.5.3 Defect Management ........................................................................................................34 5.5.4 Automatic Defect Allocation ...........................................................................................34
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