100353
Test Circuitry
Note:
•
•
•
•
•
•
V
CC
, V
CCA
= +2V,
V
EE
= −2.5V
L1 and L2
=
equal length 50Ω impedance lines
R
T
=
50Ω terminator internal to scope
Decoupling 0.1
µF
from GND to V
CC
and V
EE
All unused outputs are loaded with 50Ω to GND
C
L
=
Fixture and stray capacitance
≤
3 pF
FIGURE 1. AC, Toggle Frequency Test Circuit
Switching Waveforms
FIGURE 2. Propagation Delay (Clock)
and Transition Times
FIGURE 3. Setup and Pulse Width Times
Note:
t
S
is the minimum time before the transition of the clock that information must be present at the data input.
t
H
is the minimum time after the transition of the clock that information must remain unchanged at the data input.
FIGURE 4. Data Setup and Hold Time
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