Conducted noise, Voltage tolerance | Seagate ST3000NC000 specification

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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 10MHz.

•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 10MHz.

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 ± 5%

•12V ± 10%

Constellation CS Serial ATA Product Manual, Rev. C

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Seagate ST3000NC000, ST1000NC001, ST1000NC000, ST2000NC001, ST2000NC000, ST3000NC002 manual Conducted noise, Voltage tolerance

Contents

ConstellationCS Serial ATA Revision Date Description of Change Document Revision History Contents Sata Interface Figures Seagate Technology Support Services Introduction About the Sata interface Specification summary tables Drive Specifications Formatted capacity Model Formatted capacity Guaranteed sectors Bytes per sector Default logical geometry LBA modePhysical characteristics LBA mode Power consumption Power specificationsSeek time Start/stop times Peak operating current sequential write 3TB Drive DC power requirements Typical current profiles 3TB model current profile 2TB model current profile 1TB model current profile Voltage tolerance Conducted noise Power modes Heads Spindle Buffer Power-management modes PowerChoice is invoked using one of two methods Extended Power Conditions PowerChoiceTMPower Condition Name Power Condition ID Description EPC Subcommands Descriptions Power Condition Name Manufacturer Default Timer ValuesPowerChoice Supported Extended Power Condition Indentifiers Power Condition Power Condition Name Identifiers Environmental limits Ambient temperatureHumidity Operating Shock AltitudeVibration Non-operating Electromagnetic immunity AcousticsTest for Prominent Discrete Tones PDTs Electromagnetic compatibility Agency certification Safety certification Australian C-Tick N176 FCC verificationKorean RRL Environmental protection Product warrantyChina Restriction of Hazardous Substances RoHS Directive Corrosive environment Product repair and return information ShippingStorage Sata cables and connectors Handling and static-discharge precautionsConfiguring the drive Drive mounting Mounting dimensions ATA Security Erase Unit Command on SED Sata drives Power requirementsSanitize Feature Set on SED Drives Data encryption Hot-Plug compatibility Sata Interface Sata connector pin definitions Sata device plug connector pin definitions Command name Command code in hex Supported ATA commands F1H Word Description Value Identify Device command 69-74 Bit Word Smart error login is supported 0CH Set Features command Code in features register A.R.T. command 3 S.M.A.R.T. commands Constellation CS Serial ATA Product Manual, Rev. C Index Constellation CS Serial ATA Product Manual, Rev. C Constellation CS Serial ATA Product Manual, Rev. C Americas Seagate Technology LLC