Seagate ST33000651SS Constellation ES (.1) SATA Product Manual - Page 21

GB model current profile, Conducted noise, Note., Voltage tolerance

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500GB model current profile Typical 500GB model 5V & 12V startup and operation current profiles 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 V line or an equivalent 15-ohm resistive load on the +5V line. • Using 12V power, the drive is expected to operate with a maximum of 120mV peak-to-peak square-wave injected noise at up to 10MHz. • Using 5V power, the drive is expected to operate with a maximum of 100mV peak-to-peak square-wave injected noise at up to 10MHz. Note. Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write current. 2.8.3 Voltage tolerance Voltage tolerance (including noise): 5V ± 5% 12V ±10% Constellation ES Serial ATA Product Manual, Rev. D 15

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Constellation ES Serial ATA Product Manual, Rev. D
15
500GB model current profile
Typical 500GB model 5V & 12V startup and operation current profiles
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 V line or an equivalent 15-ohm resistive load on the +5V line.
Using 12V power, the drive is expected to operate with a maximum of 120mV peak-to-peak square-wave
injected noise at up to 10MHz.
Using 5V power, the drive is expected to operate with a maximum of
100mV peak-to-peak square-wave
injected noise at up to 10MHz.
Note.
Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write
current.
2.8.3
Voltage tolerance
Voltage tolerance (including noise):
5V
± 5%
12V ±10%