SP3489ET 데이터 시트보기 (PDF) - Signal Processing Technologies

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SP3489ET

+3.3V Low Power Quad RS-485/RS-422 Line Receivers

Signal Processing Technologies 

+VOD

Input A–B

–VOD

F = 1MHZ: tr < 10ns: tf < 10ns

0V

0V

tPHL

tPLH

RO VOH

VOL

Figure 3. Receiver Propagation Delays

1.5V

1.5V

3V

EN

0V

F = 1MHZ: tr < 10ns: tf < 10ns

1.5V

1.5V

tZL

tLZ

RO 5V

VOL

tZH

RO VOH

0V

Figure 4. Receiver Enable/Disable Timing

1.5V

Output normally low

tHZ

Output normally high

1.5V

0.5V

0.5V

10/16/02

SP3488/3489 Low Power Quad RS-485/422 Line Receivers

6

© Copyright 2002 Sipex Corporation

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