Product manual
Table Of Contents
- 1.0 Introduction
- 2.0 Drive specifications
- 2.1 Specification summary table
- 2.2 Formatted capacity
- 2.3 Default logical geometry
- 2.4 Recording and interface technology
- 2.5 Physical characteristics
- 2.6 Seek time
- 2.7 Start/stop times
- 2.8 Power specifications
- 2.9 Environmental specifications
- 2.10 Acoustics
- 2.11 Electromagnetic immunity
- 2.12 Reliability
- 2.13 Agency certification
- 2.14 Environmental protection
- 2.15 Corrosive environment
- 3.0 Configuring and mounting the drive
- 4.0 ATA interface
- 5.0 Seagate Technology support services
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DB35.3 Series PATA Product Manual, Rev. B
2.8.1.1 Typical current profile
Figure 1 Typical 5V startup and operation current profile
Figure 2 Typical 12V startup and operation current profile
2.8.2 Conducted 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.