8 ripple / noise, Ripple / noise, Table 23: capacitve loading conditions – SSI America ERP2U User Manual
Page 23: Table 24: ripple and noise
SSI
ERP2U Power Supply Design Guide, V2.31
- 23 -
Required
The power supply shall be stable and meet all requirements, except dynamic loading requirements, with the
following capacitive loading ranges.
Note: Up to 10,000
μF of the +12V capacitive loading may be on the +12V1 output.
Table 22: Capacitve Loading Conditions
Output MIN
MAX
Units
+3.3 V
10
12,000
μF
+5 V
10
12,000
μF
+12 V
10
11,000
μF
-12 V
1
350
μF
+5 VSB
1
350
μF
6.8 Ripple / Noise
STATUS
Required
The maximum allowed ripple/noise output of the power supply is defined in Table 24. This is measured over a
bandwidth of 0 Hz to 20 MHz at the power supply output connectors. A 10
μF tantalum capacitor in parallel with a
0.1
μF ceramic capacitor are placed at the point of measurement.
Table 23: Ripple and Noise
+3.3 V
+5 V
+12 V
-12 V
+5 VSB
50 mVp-p
50 mVp-p
120 mVp-p
120 mVp-p
50 mVp-p