LeCroy 9300C Series, Operator'S Manual

Page: 238 / 275

D –4
Appendix D
Figure D–3
Moreover, a hysteresis range may be specified to ignore any
spurious transition that does not exceed the boundaries of the
hysteresis interval. In Figure 3,
∆
c2d
−
(1, 2) measures the time
interval separating the rising edge of the clock (trigger) from the
first negative transition of the data signal. Similarly,
∆
c2d
+
(1, 2)
measures the time interval between the trigger and the next
transition of the data signal.
RIGHT CURSOR LEFT CURSOR
TRIGGER POINT
DATA (1)
CLK (2)
THRESHOLD
CLOCK EDGE = Positive Transition
DATA EDGE = Negative Transition
H
Y
S
T
E
R
E
S
IS
Noisy spikes ignored due
to Hysteresis band
∆ −
c2d (1, 2)
∆
c2d+(1, 2)