Test Circuitry
Notes:
VCC, VCCA = +2V, VEE = −2.5V.
L1 and L2 = equal length 50Ω impedance lines.
RT = 50Ω terminator internal to scope.
Decoupling 0.1 µF from GND to VCC and VEE.
All unused outputs are loaded with 50Ω to GND.
CL = Fixture and stray capacitance ≤ 3 pF.
Switching Waveforms
FIGURE 1. AC Test Circuit
FIGURE 2. Propagation Delay and Transition Times
www.fairchildsemi.com
6