ADM2483BRW Ver la hoja de datos (PDF) - Analog Devices

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ADM2483BRW

Half-Duplex, iCoupler® Isolated RS-485 Transceiver

Analog Devices 

ADM2483

SWITCHING CHARACTERISTICS

VDD1

0V

B

1/2VO

VO

0.5VDD1

tPLH

0.5VDD1

tPHL

A

VOH

A, B

VOL

90% POINT

10% POINT

tR

tSKEW = |tPLH – tPHL|

90% POINT

10% POINT

tF

Figure 9. Driver Propagation Delay, Rise/Fall Timing

A– B

RxD

0V

0V

tPLH

tPHL

VOH

1.5V tSKEW = |tPLH – tPHL|

1.5V

VOL

Figure 10. Receiver Propagation Delay

Data Sheet

DE

0.5VDD1

tZL

0.5VDD1

tLZ

0.7VDD1

0.3VDD1

A, B

A, B

2.3V

tZH

2.3V

VOL + 0.5V

tHZ

VOH – 0.5V

VOL

VOH

0V

Figure 11. Driver Enable/Disable Timing

RE

0.5VDD1

tZL

0.5VDD1

tLZ

0.7VDD1

0.3VDD1

RxD

RxD

0V

1.5V

O/P LOW

tZH

O/P HIGH

1.5V

VOL + 0.5V

VOL

tHZ

VOH – 0.5V

VOH

Figure 12. Receiver Enable/Disable Timing

Rev. C | Page 10 of 20

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