Tektronix DSA70000D Series - Page 868

Oscilloscope Reference Jitter root mean square
Jitter root mean square
Jitter RMS is the RMS value of the edge jitter in the current horizontal units.
Jitter RMS = TCross 1sigma
Lock mask
Lock Mask to Waveform resizes the mask to reflect changes in the horizontal o r vertical settings of the
instrument.
Logic pattern
Select the Boolean logic function for the combination of the input channels. The instrument will trigger on
a clock edge whe n the i nput waveforms match the specified logic pattern.
Logic pattern inputs
The instrument input channels represent the data inputs; the channel inputs combine to form a logic pattern.
Each channel can have a value of high (H), low (L), or "don't care" (X):
Aval
ue is considered high if the channel input voltage is greater than the specified threshold voltage.
A v alue is considered low if the channel input voltage is less than the specified threshold voltage.
Use the "don't care" selection for any channels that will not be used as part of the pattern.
846 DSA/DPO70000D, MSO/DPO/DSA70000C, DPO7000C, and MSO/DPO5000 Series