7

SP319DS/08

SP319 20Mbps, +5V-Only V.35 Interface with RS-232 (V.28) Control Lines

© Copyright 2000 Sipex Corporation

A

C

V

CC

= 0V

±2V

I

x

A

C

3k

Ω

2500pF

Oscilloscope

Figure 17. V.28 Driver Output Rise/Fall Times

Figure 16. V.28 Driver Output Power-Off Impedance

Figure 18. V.28 Receiver Input Impedance

A

C

I

ia

±15V

A

C

V

oc

Figure 19. V.28 Receiver Input Open Circuit Bias