IL3085

10

NVE Corporation

11409 Valley View Road, Eden Prairie, MN 55344-3617

(952) 829-9217

www.nve.com

YouTube.com/NveCorporation

iso-apps@nve.com

Application Information

Figures 1a, 1b, and 1c show typical connections to a bus and microcontroller for the three package versions. The schematics include typical

termination and fail-safe resistors, and power supply decoupling capacitors:

11

10

9

VDD2 = 5 V

RFS-EXT

RT

RFS-EXT

120R

560R

560R

VDD1 = 3.3 V

ISODE

GND2

GND1

47nF

CDD1

47nF

CDD2

10µF

CDD2B

+

1

3

14

16

15

B

A

DE

D

R

RE

5

6

2

4

XDE

12

IL3085-1

ISOR

13

Figure 1a. Typical QSOP transceiver connections.

12

11

VDD2 = 5 V

RFS-EXT

RT

RFS-EXT

120R

560R

560R

VDD1 = 3.3 V

ISODE

GND2

GND1

47nF

CDD1

47nF

CDD2

10µF

CDD2B

+

1

2

15

16

14

B

A

DE

D

R

RE

6

5

3

4

XDE

10

13

IL3085-3

Figure 1b. Typical narrow-body connections.

13

12

RFS-EXT

RT

RFS-EXT

120R

560R

560R

ISODE

GND2

GND1

47nF

CDD1

47nF

CDD2

10µF

CDD2B

IL3085

+

1

2 or 8

9 or 15

16

10

B

A

DE

D

R

RE

5

6

3

4

VDD2 = 5 V

VDD1 = 3.3 V

Figure 1c. Typical wide-body connections.