5520A
Service Manual
1-24
1-25. Harmonics (2nd to 50th) Specifications
Fundamental
Frequency [1]
Voltages
NORMAL
Terminals
Currents
Voltages
AUX Terminals
Amplitude
Uncertainty
10 Hz to 45 Hz 33 mV to 32.9999 V 3.3 mA to 2.99999 A 10 mV to 5 V Same % of
output as
45 Hz to 65 Hz 33 mV to 1000 V 3.3 mA to 20.5 A 10 mV to 5 V the
equivalent
65 Hz to 500 Hz 33 mV to 1000 V 33 mA to 20.5 A 100 mV to 5 V single output,
but twice the
500 Hz to 5 kHz 330 mV to 1000 V 33 mA to 20.5 A 100 mV to 5 V floor adder.
5 kHz to 10 kHz 3.3 V to 1000 V 33 mA to
329.9999 mA
100 mV to 5 V
10 kHz to 30 kHz 3.3 V to 1000 V 33 mA to
329.9999 mA
100 mV to
3.29999 V
[1] The maximum frequency of the harmonic output is 30 kHz (10 kHz for 3 V to 5 V). For example, if the
fundamental output is 5 kHz, the maximum selection is the 6th harmonic (30 kHz). All harmonic
frequencies (2nd to 50th) are available for fundamental outputs between 10 Hz and 600 Hz (200 Hz
for 3 V to 5 V).
Note
Phase uncertainty for harmonic outputs is 1°, or the phase uncertainty shown in “Phase Specifications”
for the particular output, whichever is greater. For example, the phase uncertainty of a 400 Hz
fundamental output and 10 kHz harmonic output is 10° (from “Phase Specifications”). Another
example, the phase uncertainty of a 60 Hz fundamental output and a 400 Hz harmonic output is 1°.
Example of determining Amplitude Uncertainty in a Dual Output Harmonic Mode
What are the amplitude uncertainties for the following dual outputs?
NORMAL (Fundamental) Output: 100V, 100 Hz
From “AC Voltage (Sine Wave) Specifications” the single output specification for
100V, 100 Hz, is 0.015% + 2 mV. For the dual output in this example, the specification
is 0.015% + 4 mV as the 0.015% is the same and the floor is twice the value (2 x 2 mV).
AUX (50th Harmonic) Output: 100 mV, 5 kHz
From “AC Voltage (Sine Wave) Specifications” the auxiliary output specification for
100 mV, 5 kHz, is 0.15% + 450 mV. For the dual output in this example, the specification
is 0.15% + 900 mV as the 0.15% is the same and the floor is twice the value (2 x 450 mV).