Seagate ST9500530NS ユーザーズマニュアル

Constellation Serial ATA Product Manual, Rev. D

13

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.

Voltage tolerance (including noise):

5V   ±5% 

 

12V ±5%