Seagate ST3500320SV manual Acoustics, Electromagnetic immunity, Radio frequency environments

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2.10Acoustics

Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All mea- surements are consistent with ISO document 7779. Sound power measurements are taken under essentially free-field conditions over a reflecting plane. For all tests, the drive is oriented with the cover facing upward.

Note. For seek mode tests, the drive is placed in seek mode only. The number of seeks per second is defined by the following equation:

(Number of seeks per second = 0.4 / (average latency + average access time)

	Table 4:	Fluid Dynamic Bearing (FDB) motor acoustics

			Idle*	CE Seek

	ST31000340SV		2.7 bels (typ)	2.8 bels (typ)
	ST3750330SV		2.7 bels (typ)	2.8 bels (typ)
	ST3750330SV		2.9 bels (max)	3.0 bels (max)
	ST3500320SV		2.9 bels (max)	3.0 bels (max)
	ST3500320SV

	ST3250310SV		2.5 bels (typ)	2.6 bels (typ)
	ST3250310SV		2.8 bels (max)	2.8 bels (max)
			2.8 bels (max)	2.8 bels (max)

*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power to operational levels.

2.11Electromagnetic immunity

When properly installed in a representative host system, the drive operates without errors or degradation in performance when subjected to the radio frequency (RF) environments defined in the following table:

Table 5:	Radio frequency environments

Test		Description	Performance level	Reference standard

Electrostatic		Contact, HCP, VCP: ± 4 kV; Air: ± 8 kV	B	EN 61000-4-2: 95
discharge

Radiated RF		80 to 1,000 MHz, 3 V/m,	A	EN 61000-4-3: 96
immunity		80% AM with 1 kHz sine		ENV 50204: 95
		900 MHz, 3 V/m, 50% pulse modulation @ 200 Hz

Electrical fast		± 1 kV on AC mains, ± 0.5 kV on external I/O	B	EN 61000-4-4: 95
transient

Surge immunity		± 1 kV differential, ± 2 kV common, AC mains	B	EN 61000-4-5: 95

Conducted RF		150 kHz to 80 MHz, 3 Vrms, 80% AM with 1 kHz sine	A	EN 61000-4-6: 97
immunity

Voltage dips,		0% open, 5 seconds	C	EN 61000-4-11: 94
interrupts		0% short, 5 seconds	C
		40%, 0.10 seconds	C
		70%, 0.01 seconds	B

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 Command name Command code in hex Supported ATA commandsSupported ATA commands 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 Code in features register A.R.T. command 3 S.M.A.R.T. commandsA.R.T. commands SV35.3 Series Serial ATA Product Manual, Rev. B Technical Support InternetPresales Support Data Recovery Services Call Center Toll-free Direct dialFAX Warranty ServiceData Recovery Services Authorized Service Centers Index ITE Page SV35.3 Series Serial ATA Product Manual, Rev. B Page Seagate Technology LLC