Optoway

BTRS-3702MG

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Tel: 886-3-5979798

Fax: 886-3-5979737

E-mail: sales@optoway.com.tw

http: // www.optoway.com.tw

10/1/2009 V4.0

3

CONNECTION DIAGRAM

PIN

Symbol

Notes

1

Directly connect this pin to the receiver ground plane

2

+3.3V dc power for the receiver section

3

SD

Active high on this indicates a received optical signal.

4

RD

−

Receiver Dataout Bar. See recommended circuit schematic

5

RD+

Receiver Dataout. See recommended circuit schematic

6

+3.3V dc power for the transmitter section

7

Directly connect this plan to the transmitter ground plane

8

TxDis

Transmitter Disable. Connect this pin to +3.3V TTL logic “1” to disable module

To enable module connect to TTL logic low “0”

9

TD+

Transmitter Data In. See recommended circuit schematic

10

TD-

Transmitter Data In Bar. See recommended circuit schematic

MS

MS

Mounting Studs. Connect to Chassis Ground

RECOMMENDED CIRCUIT SCHEMATIC

Recommended AC Coupled Interface Circuit

U2

SFF2X5

TDis(LVTTL)

MICROSTRIP6

Z=5OR

MICROSTRIP5

Z=50R

L3

1uH

C10

10uF

C9

10nF

C16

10uF

C15

10nF

Vcc3.3V

R14

130R

R15

130R

L4

1uH

C12

10uF

C11

10nF

MICROSTRIP8

Z=5OR

MICROSTRIP7

Z=50R

R12

150R

R13

150R

R20

130R

R21

82R

Vcc3.3V

PHY DEVICE

TD-

TD+

RD+

RD-

SD

C7

100nF

C8

100nF

R11

130R

R10

130R

R9

82R

R8

82R

Vcc3.3V

C13

100nF

C14

100nF

R16

130R

R17

82R

Vcc3.3V

R18

130R

R19

82R

Vcc3.3V

Vcc3.3V

LVPECL

Vcc3.3V

LVPECL

Terminate in Tranceiver inputs