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1 typical current profile, 2 conducted noise, 3 voltage tolerance – Seagate MOMENTUS 5400.3 ST9160821AB User Manual

Page 19: Conducted noise, Voltage tolerance, Figure 1, Typical 5v startup and operation current profile

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Momentus 5400.3 PATA Blade Server Product Manual, Rev. B

13

2.9.1.1

Typical current profile

Figure 4. Typical 5V startup and operation current profile

2.9.2

Conducted noise

Input noise ripple is measured at the host system power supply across an equivalent 15-ohm resistive load on
the +5 volt line.

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.

2.9.3

Voltage tolerance

Voltage tolerance (including noise):

5V ± 5%