Seagate ST340014A Barracuda 7200.7 PATA Product Manual - Page 21

Electromagnetic immunity - open manually

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Table 1: Fluid Dynamic Bearing (FDB) motor acoustics Models ST3200822A ST3200021A ST3160023A ST3160021A ST3120026A ST3120022A ST380013A ST380011A ST340014A Idle*

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Barracuda 7200.7 Product Manual, Rev. N
13
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and
power to operational levels
.
2.12
Electromagnetic immunity
When properly installed in a representative host system, the drive operates without errors or degradation in
performance when subjected to the radio frequency (RF) environments defined in the following table:
Table 1:
Fluid Dynamic Bearing (FDB) motor acoustics
Models
Idle*
Performance seek
ST3200822A
ST3200021A
ST3160023A
ST3160021A
ST3120026A
ST3120022A
<2.5 bels (typ)
2.7 bels (max)
3.4 bels (typ)
3.7 bels (max)
ST380013A
ST380011A
ST340014A
<2.2 bels (typ)
2.6 bels (max)
3.1 bels (typ)
3.5 bels (max)
Test
Description
Performance
level
Reference
standard
Electrostatic discharge
Contact, HCP, VCP:
±
4
kV; Air:
±
8 kV
B
EN 61000-4-2: 95
Radiated RF immunity
80 to 1,000 MHz, 3 V/m,
80% AM with 1 kHz sine
900 MHz, 3 V/m, 50% pulse
modulation @ 200 Hz
A
EN 61000-4-3: 96
ENV 50204: 95
Electrical fast transient
±
1 kV on AC mains,
±
0.5 kV on
external I/O
B
EN 61000-4-4: 95
Surge immunity
±
1 kV differential,
±
2 kV com-
mon, AC mains
B
EN 61000-4-5: 95
Conducted RF immunity
150 kHz to 80 MHz, 3 Vrms,
80% AM with 1 kHz sine
A
EN 61000-4-6: 97
Voltage dips, interrupts
0% open, 5 seconds
0% short, 5 seconds
40%, 0.10 seconds
70%, 0.01 seconds
C
C
C
B
EN 61000-4-11: 94