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Seagate ST9500620NS, ST9500622NS, ST9500621NS, ST9250610NS manual Conducted noise, Voltage tolerance

Models: ST9250612NS ST9500622NS ST91000640NS ST9250610NS ST91000641NS ST9250611NS ST9500620NS ST9500621NS ST91000642NS

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Figure 3. Typical 5V/12V startup and operation current profile for 250GB models

3.8.2Conducted noise

Noise is specified as a periodic and random distribution of frequencies covering a band from DC to 10 MHz. Maximum allowed noise values given below are peak-to-peak measurements and apply at the drive power connector.

•	+5v	= 250 mV pp from 100 Hz to 20 MHz.
•	+12v	=	450 mV pp from 8 kHz to 20 kHz.
		=	250 mV pp from 20 kHz to 5 MHz.

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

3.8.3Voltage tolerance

Voltage tolerance (including noise):

5V +10 / -7.5%

12V +10 / -7.5%

14	Constellation.2 Serial ATA Product Manual, Rev. B

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Seagate ST9500620NS, ST9500622NS, ST9500621NS, ST9250610NS, ST9250612NS, ST9250611NS manual Conducted noise, Voltage tolerance

Contents

SED Fips 140-2 Models ST91000642NS ST9500622NS ST9250612NSStandard Models Self-Encrypting Drive Models Revision history Revision Date Sheets affected or comments Contents Serial ATA Sata interface List of Figures Page Seagate Technology support services Seagate Online Support and Services Introduction About the Serial ATA interface Drive specifications Specification summary tables Drive specifications summary for 1TB, 500 and 250 GB models Constellation.2 Serial ATA Product Manual, Rev. B Default logical geometry LBA modeFormatted capacity Recording and interface technology Physical characteristics Seek timeStart/stop times Typical seek times ms Read Write Power specifications Power consumptionSpinup power Standby mode 1000GB drive Standard & SED model DC power requirementss PowerST91000640NS Parameter 0GB Voltage +12 Regulation +10/-7.5% Watts 500GB drive Standard & SED model DC power requirements ST9500620NS Parameter 0GB Voltage +12 250GB drive Standard & SED model DC power requirements ST9250610NS Parameter 0GB Voltage +12 Typical current profiles Conducted noise Voltage tolerance Power-management modes Active modeIdle mode Sleep mode PowerChoice is invoked using one of two methods Power Condition Name Power Condition ID Description Relative humidity Temperature a. OperatingEnvironmental limits Effective altitude sea level ShockOperating shock Nonoperating shock Acoustics VibrationOperating vibration Nonoperating vibration Electromagnetic immunity ReliabilityRadio frequency environments Test Description Performance level Reference standard Agency certification Reference documents Product warrantyEnvironmental protection Product repair and return information ShippingStorage Corrosive environment China Restriction of Hazardous Substances RoHS Directive Configuring and mounting the drive Handling and static-discharge precautions Configuring the drive Serial ATA cables and connectors Mounting dimensions-top, side and end view Drive mounting Cooling Air flow Level 2 security About FipsPurpose Controlled access Admin SPAbout self-encrypting drives Data encryption Default password Random number generator RNGDrive locking Data bands Authenticated firmware download Power requirementsSupported commands Cryptographic erase Serial ATA Sata interface Hot-Plug compatibility Serial ATA device plug connector pin definitions Serial ATA connector pin definitionsSignal Pin Function Definition Command name Command code in hex Supported ATA commandsSupported ATA commands F4H Identify Device command Word Description Value Xx07H Description if bit is set to Bit Word Bit Word Word Set Features command Set Features command values Code in features register A.R.T. command 3 S.M.A.R.T. commandsA.R.T. commands Index ITE Page Constellation.2 Serial ATA Product Manual, Rev. B Page Disc Drive, Scotts Valley, California 95066-4544, USA