5

SP319DS/08

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

© Copyright 2000 Sipex Corporation

Figure 7. V.35 Receiver Input Source Impedance

Figure 8. V.35 Receiver Input Short-Circuit Impedance

A

B

C

I

sc

±2V

A

B

V

2

50

Ω

C

Sine Wave

V

1

Figure 9. Driver/Receiver Timing Test Circuit

15pF

A

B

A

B

f

IN

(50% Duty Cycle, 2.5V

P-P

)

Figure 10. Driver Propagation Delays

+3V

0V

DRIVER

INPUT

A

B

DRIVER

OUTPUT

DIFFERENTIAL

OUTPUT

0V

1.5V

1.5V