SP334CT Просмотр технического описания (PDF) - Signal Processing Technologies

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производитель

SP334CT

Programmable RS-232/RS-485 Transceiver

Signal Processing Technologies 

RECEIVER INPUT GRAPH

RS-485 RECEIVER

+1.0mA

–7V –3V

–0.6mA

+6V +12V

1 Unit Load

Maximum Input Current

versus Voltage

TEST CIRCUITS

A

R

VOD

B

R VOC

Figure 1. Driver DC Test Load Circuit

Receiver

Output

Test Point

1KΩ

S1

VCC

CRL

1KΩ

S2

Figure 2. Receiver Timing Test Load Circuit

CL1

DI

A RL

B

CL2

A

RO

B

15pF

Output

Under

Test CL

500Ω

S1

VCC

S2

Figure 3a. Driver/Receiver Timing Test Circuit

Figure 4. Driver Timing Test Load #2 Circuit

SP334DS/10

Programmable RS-232/RS-485 Transceiver

4

© Copyright 2000 Sipex Corporation

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