3 53220A/53230A Measurements
114 Keysight 53220A/53230A User’s Guide
*RST // reset to start from known state
CONF:PDUT -1.0V, (@1)
INP:COUP DC // set DC coupling
INP:IMP 50 // set input impedance to 50 ohm
READ?
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// using CONFigure - measure the negative duty cycle at a // 50% (0V)
reference
*RST // reset to start from known state
CONF:NDUT 50 PCT, (@1)
TRIG:SOUR EXT // set an external trigger source
INIT
Notes
1 The reference (threshold) can be specified as a percentage of the peak-to-peak
amplitude or as an absolute level in either the CONFigure or MEASure?
command.
2 Absolute references are relative to the amplitude of the signal and must take
into consideration the counter’s input coupling and impedance settings.
3 The measured duty cycle is a decimal representation of the ratio. For example,
a 5% duty cycle reading might appear in the counter output buffer as:
+5.105095730909666E-002
The same reading would appear in the display as: 5.1 Pct.
4 See Chapter 4 for information on configuring the input signal path and
Chapter 5 for information on Triggering.
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