Filter
Top Products
Appendix B: Algorithms
TDS 620A, 640A & 644A User Manual
AĆ13
High
HighRef
LowRef
Low
TLFTHF
Fall Time
Figure AĆ2:ăFall Time
Frequency
Timing measurement. The reciprocal of the period. Measured in Hertz (Hz)
where 1 Hz = 1 cycle per second.
If Period = 0 or is otherwise bad, return an error.
Frequency =1/Period
High
100% (highest) voltage reference value. (See High, Low" earlier in this
section)
Using the minĆmax measurement technique:
High = Max
Low
0% (lowest) voltage reference value calculated. (See High, Low" earlier in
this section)
Using the minĆmax measurement technique:
Low = Min