MC10198
SWITCHING TIME TEST CIRCUIT AND WAVEFORMS @ 25°C
Vin
VCC1 = VCC2 = +2.0 Vdc
Vout
25 µF
Coax
5
EPos
7
External Pulse
Input
TPin
Width Control
Pulse Generator
+1.11 V
0.1 µF
10
ENeg
13
Trigger Input
Input Pulse
15
Hi-Speed Input
t+ = t- = 2.0 ± 0.2 ns
(20 to 80%)
6
RExt
4
CExt
0.1 µF
3
Q
2
Q
Coax
TPout
50–ohm termination to ground located
in each scope channel input.
All input and output cables to the scope
are equal lengths of 50–ohm coaxial
cable. Wire length should be < 1/4 inch
from TPin to input pin and TPout to
output pin.
VEE = -3.2 Vdc
0.1 µF
Unused outputs are tied to a
50–ohm resistor to ground.
EPos
Trigger Input
tT+Q+
Q
High-Speed
Trigger Input
tHS+Q+
Q
PWT
PWQ
tT-Q+
50%
50%
50%
50%
tsetup (E)
PWHS
PWQ
tHold(E)
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