Seagate ST3500320SV, ST31000340SV, ST3250310SV, ST3750330SV manual Conducted noise, Voltage tolerance

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2.8.2Conducted noise

Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on the +12 volt line or an equivalent 15-ohm resistive load on the +5 volt line.

•Using 12-volt power, the drive is expected to operate with a maximum of 120 mV peak-to-peak square-wave injected noise at up to 10 MHz.

•Using 5-volt power, the drive is expected to operate with a maximum of 100 mV peak-to-peak square-wave injected noise at up to 10 MHz.

Note. Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write current.

2.8.3Voltage tolerance

Voltage tolerance (including noise):

5V +10% / -7.5%

12V +10% / -7.5%

SV35.3 Series Serial ATA Product Manual, Rev. B

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Contents ST31000340SV ST3750330SV ST3500320SV ST3250310SV SV35.3 Series Serial ATARevision Date Revision historyContents SV35.3 Series Serial ATA Product Manual, Rev. B List of Figures Page Introduction About the Serial ATA interface Specification summary tables Drive specificationsDrive specification ST31000340SV ST3750330SV ST3500320SV System will display the warranty information for your drive Drive specification ST3250310SV Drive specifications summary for 250 Gbyte modelsTem will display the warranty information for your drive Cylinders Read/write heads Sectors per track Default logical geometryLBA mode Formatted capacityModels ST31000340SV, ST3750330SV & ST3500320SV ST3250310SV Physical characteristicsDrive specification Recording and interface technologyTB models GB models Seek timeStart/stop times Typical seek times msec Read WritePower specifications DC power requirements Voltage tolerance Conducted noiseSleep mode Power-management modesActive mode Idle modeEnvironmental specifications Nonoperating shock 1 disc models ShockOperating shock Nonoperating shock 4, 3 and 2 disc modelsRadio frequency environments AcousticsElectromagnetic immunity Fluid Dynamic Bearing FDB motor acousticsReliability Agency certification China Restriction of Hazardous Substances RoHS Directive Environmental protectionCorrosive environment SV35.3 Series Serial ATA Product Manual, Rev. B Handling and static-discharge precautions Configuring and mounting the driveSerial ATA cables and connectors Configuring the driveDrive mounting Mounting dimensions-top, side and end viewSV35.3 Series Serial ATA Product Manual, Rev. B Hot-Plug compatibility Serial ATA Sata interfacePower Serial ATA device plug connector pin definitionsSerial ATA connector pin definitions SignalPage Supported ATA commands Supported ATA commandsCommand name Command code in hex F6H E8H Word Description Value Identify Device commandXxxxH Xx3FH Bit Word Description if bit is set to Bit WordSet Features command values Set Features commandF1 H A.R.T. commands 3 S.M.A.R.T. commandsCode in features register A.R.T. command SV35.3 Series Serial ATA Product Manual, Rev. B Presales Support InternetTechnical Support Data Recovery Services Authorized Service Centers Warranty ServiceData Recovery Services Call Center Toll-free Direct dialFAX Index ITE Page SV35.3 Series Serial ATA Product Manual, Rev. B Page Seagate Technology LLC