MAX3465 datasheet(10/14 Pages) MAXIM

Part #	MAX3465

Description	5V, Fail-Safe, 40Mbps, Profibus RS-485/ RS-422 Transceivers

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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10 / 14 page

+5V, Fail-Safe, 40Mbps, Profibus RS-485/

RS-422 Transceivers

10

______________________________________________________________________________________

Y

Z

VOD

R

VOC

Figure 5. Driver DC Test Load

DI

DE

3V

Y

VID

CL

RDIFF

Z

Figure 6. Driver Timing Test Circuit

DI

3V

0V

Z

Y

VO

0V

-VO

VO

1.5V

1/2 VO

tPLH

tF

tR

tPHL

10%

90%

1.5V

10%

VDIFF = V (Y) - V (Z)

tSKEW = | tPLH - tPHL |

VDIFF

f = 1MHz, tR

≤ 3ns, tF ≤ 3ns

Figure 7. Driver Propagation Delays

OUTPUT NORMALLY LOW

OUTPUT NORMALLY HIGH

3V

0V

Y, Z

VOL

Y, Z

0V

1.5V

VOL + 0.5V

VOH - 0.5V

50%

tZL(SHDN), tZL

tLZ

tZH(SHDN), tZH

tHZ

DE

Figure 9. Driver Enable and Disable Times

VOH

VOL

A

B

1V

-1V

1.5V

OUTPUT

INPUT

RO

tPLH

tPHL

f = 1MHz, tR

≤ 3ns, tF ≤ 3ns

Figure 10. Receiver Propagation Delays

3V

0V

VCC

RO

0V

1.5V

RE

OUTPUT NORMALLY LOW

OUTPUT NORMALLY HIGH

1.5V

VOL + 0.5V

VOH - 0.5V

tZL(SHDN), tZL

tLZ

tZH(SHDN), tZH

tHZ

Figure 11. Receiver Enable and Disable Times

S1

S2

OUTPUT

UNDER TEST

VCC

CL

RL

Figure 8. Enable/Disable Timing Test Load

Similar Part No. - MAX3465

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MAX3465 Datasheet(PDF) 10 Page - Maxim Integrated Products

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