HP 54753A User Manual page 246

Table 11-1
Maximum Open Line Length for MECL 10,100 (Gate Rise Time = 3.5 ns)
Z
(OHMS)
o
MICROSTRIP
(Propagation Delay
0.148 ns/in.)
STRIPLINE
(Propagation Delay
0.188 ns/in.)
BACKPLANE
(Propagation Delay
0.140 ns/in.)
Transmission Line Theory Applied to Digital Systems
Signal Propagation Delay for Microstrip and Strip Lines with Distributed or Lumped Loads
FANOUT = 1
(2.9pF)
l (IN)
MAX
50 8.3
68 7.0
75 6.9
82 6.6
90 6.5
100 6.3
50 6.5
68 5.6
75 5.3
82 5.2
90 5.1
100 4.9
100 6.6
140 5.9
180 5.2
11-18
FANOUT = 2 FANOUT = 4
(5.8pF) (11.6pF)
l (IN) l (IN)
MAX MAX
7.5 6.7
6.2 5.0
5.9 4.6
5.7 4.2
5.4 3.9
5.1 3.6
5.9 5.2
4.9 3.9
4.7 3.6
4.4 3.3
4.3 3.1
4.0 2.8
5.4 3.8
4.3 2.8
3.6 2.1
FANOUT = 8
(23.2pF)
l (IN)
MAX
5.7
4.0
3.6
3.3
3.0
2.6
4.5
3.2
2.8
2.6
2.4
2.1
2.8
1.9
1.3