Typical current profile, Conducted noise | Seagate ST3300820ACE

2.8.1.1Typical current profile

Figure 1 Typical 5V startup and operation current profile

Figure 2 Typical 12V startup and operation current profile

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.

12	DB35.3 Series PATA Product Manual, Rev. C

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Contents

DB35.3 Series Pata Page DB35.3 Series Pata Page Contents DB35.3 Series Pata Product Manual, Rev. C List of Figures DB35.3 Series Pata Product Manual, Rev. C Introduction DB35.3 Series Pata Product Manual, Rev. C Drive specifications Specification summary table Drive specification ST3750840ACE ST3500830ACE ST3400820ACE DB35.3 Series Pata Product Manual, Rev. C Drive specification ST3320820ACE ST3300820ACE ST3250820ACE DB35.3 Series Pata Product Manual, Rev. C Default logical geometry LBA modeFormatted capacity Cylinders Read/write heads Sectors per track 16,383 Physical characteristics Drive specificationRecording and interface technology 750GB 500GB 400GB 320GB 300GB 250GB Start/stop times Power specificationsSeek time Standby mode DC power requirements Typical current profile Conducted noise Power-management modes Active modeIdle mode Sleep mode Environmental specifications Shock Operating shockNonoperating shock Disc models 4 Disc models Idle CE seek profile AcousticsFluid Dynamic Bearing FDB motor acoustics Safety certification Electromagnetic immunityReliability Agency certification Electromagnetic compatibility Korean RRLAustralian C-Tick N176 FCC verification European Union Restriction of Hazardous Substances RoHS Environmental protectionCorrosive environment DB35.3 Series Pata Product Manual, Rev. C Configuring and mounting the drive Handling and static discharge precautions Breather filter hole precautions Breather filter hole location Jumper settings Master/slave configurationDrive as master with a non-ATA-compatible slave Cable-select option Drive mounting Ultra ATA/100 cable Mounting dimensions-top, side and end view DB35.3 Series Pata Product Manual, Rev. C ATA interface signals and connector pins Pins and supported ATA signals Supported ATA commands Command name Command code in hex F4H Identify Device command Word Description Value Xx07H Description if bit is set to Bit Word Bit Word Set Features command 0CH 4 S.M.A.R.T. commands Code in features Register A.R.T. command Warranty Service Internet MySeagate Spp.seagate.comPresales Support Technical Support Data Recovery Services Authorized Service Centers Data Recovery Services Toll-free support numbers FAX services-All Europe toll callCall center Presales and Technical Support Warranty Service Asia/Pacific support services Index Page Page DB35.3 Series Pata Product Manual, Rev. C Page Seagate Technology LLC