MAX3088CSA 查看數據表（PDF） - Maxim Integrated

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MAX3088CSA

Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422 Transceivers

Maxim Integrated 

Fail-Safe, High-Speed (10Mbps),

Slew-Rate-Limited RS-485/RS-422 Transceivers

3V

DE

DI

Y

VID

Z

CL1

RDIFF

CL2

OUTPUT

UNDER TEST

500Ω

CL

VCC

S1

S2

Figure 7. Driver Timing Test Circuit

Figure 8. Driver Enable/Disable Timing Test Load

3V

DI

1.5V

0V

Z

Y

VDIFF

VO

0V

-VO

VO

1/2 VO

10%

tR

1.5V

tPLH

tPHL

1/2 VO

VDIFF = V (Y) - V (Z)

90%

90%

10%

tF

tSKEW = | tPLH - tPHL |

Figure 9. Driver Propagation Delays

3V

DE

1.5V

0V

Y, Z

VOL

Y, Z

0V

1.5V

tZL(SHDN), tZL

tLZ

2.3V OUTPUT NORMALLY LOW

OUTPUT NORMALLY HIGH

2.3V

tZH(SHDN), tZH

tHZ

VOL +0.5V

VOH -0.5V

Figure 10. Driver Enable and Disable Times (except

MAX3081/MAX3084/MAX3087)

VOH

RO

VOL

1V A

-1V B

1.5V

tPHL

OUTPUT

1.5V

tPLH

INPUT

Figure 11. Receiver Propagation Delays

3V

RE

1.5V

0V

VCC

RO

1.5V

tZL(SHDN), tZL

tLZ

1.5V OUTPUT NORMALLY LOW

VOL + 0.5V

RO

0V

OUTPUT NORMALLY HIGH

1.5V

tZH(SHDN), tZH

tHZ

VOH - 0.5V

Figure 12. Receiver Enable and Disable Times (except

MAX3081/MAX3084/MAX3087)

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