HP 54753A User Manual

Transmission Line Theory Applied to Digital Systems
Transmission Line Design
11-14
Equation 10 may be illustrated by solving for the steady state reflection voltage
at t = 2T
D
+ T
1
:
From the analysis of Figure 11-5, it is concluded that the MECL gate can safely
drive the transmission line (Z
o
= 50 Ω) with a 100 Ω load resistor and with the
gate loads lumped at the end of the line, since less than 100 mV of undershoot
occurs. The remaining noise margin will be typically greater than 100 mV.
V
′
1.0
()
0.32 0.58–
()
1
50
∞
------+
2
---------------




0.82–
()
0.193– 0.32 0.58–
()
1
50
∞
------+
2
---------------




–78= mV+=

HP 54753A Specifications

General

Brand	HP
Model	54753A
Category	Control Unit
Language	English