1.7.1.1 Typical current profile
Figure 1 shows a typical current profile for the Medalist 3240 and the
Medalist 2531.
1.7.2
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 triangular-wave injected noise at up to 25
MHz.
•
Using 5-volt power the drive is expected to operate with a maximum
of 100 mV peak-to-peak triangular-wave injected noise at up to 25
MHz.
Note. Equivalent resistance is calculated by dividing the nominal volt-
age by the typical RMS read/write current.
1.7.3
Voltage tolerance
Voltage tolerance (including noise):
±
5%
0
2
4
6
8
10
12
14
16
18
200
400
600
800
1,000
1,200
1,400
Current (mA)
Time (seconds)
Figure 1. Typical startup and operation current profile
Medalist 3240 and Medalist 2531 Product Manual, Rev. A
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