HP 3314A - Page 63

Per Iorrnance Tests
Model 3314A
•
SPECTRUM ANALyZER
•
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TERMINA TION
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3314
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D
Figure 4-20. Harmonic Distortion Connections
Procedure: 4-22. SQUARE WAVE RISE/FALL TIME
A. Preset the 3314A.
B. Set the 3314A as follows:
This test uses a wide bandwidth oscilloscope to measure
the rise and fall time of a 10kHz, 30Vp-p square wave.
C. Connect the 50 Ohm Feedthrough Termination to
the 3314A's Main Output. Connect the 5000 Feed-
through Termination to the 3314A's X3 Output.
Frequency
Amplitude
20Hz
lOVp-p
Required Equipment:
Oscilloscope
50 Ohm Feedthrough Termination
A 5000 Feedthrough Termination consisting of:
14990 resistor, -hp- part number 0698-4123
D. Connect the spectrum analyzer's 1MO input to the
3314A's X3 Output. Set the spectrum analyzer to measure
the fundamental and at least seven harmonics. Use the
Marker function to verify that the level of the largest har-
monic IS more than 53dB below the fundamental.
Procedure:
A. Preset the 3314A.
B. Set the 3314A as follows:
E Repeat step D for 3314A frequency settings of
50kHz and 1 MHz. The largest harmonic should be more
than 53dB below the fundamental at 50kHz, and more
than 38dB below at 1MHz.
Frequency
Amplitude
Function.
10kHz
IOVp-p
.... Square Wave
3314
OSCILLOSOPE
•
••
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50 OHM
FEEDTHRU
TERMINA TION
NO CONNECTION
L II
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IIOH~
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Figure 4-21. Square Wave Rise/Fall Time Connections
4-24