_______________________________________________________________________________________ 5

40Mbps, +3.3V, RS-485 Half-Duplex

Transceivers

Test and Timing Diagrams

Figure 1. Driver DC Test Load

Figure 2. Driver Timing Test Circuit

Figure 3. Driver Propagation Delays

A

B

2

2

DI

DE

A

B

1.5V

1.5V

0

B

A

10%

90%

10%

90%

0

0

0

0.25V

1.5V

DE

1.5V

OUT

50I

OUT

S1

A

B

D

DI

GENERATOR

DE

50pF