Optoway

TRS-9002CG

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Tel: 886-3-5979798

Fax: 886-3-5979737

E-mail: sales@optoway.com.tw

http: // www.optoway.com.tw

10/1/2006 V1.0

3

CONNECTION DIAGRAM

Receiver Signal Ground

1 (Rx GND)

Receiver Data Out

2 (RD+)

N/C

Receiver Data Out Bar

3 (RD

−)

Signal Detect

4 (SD)

Receiver Power Supply

5 (Rx Vcc)

TOP VIEW

Transmitter Power Supply

6 (Tx Vcc)

Transmitter Data In Bar

7 (TD

−)

Transmitter Data In

8 (TD+)

N/C

Transmitter Signal Ground

9 (Tx GND)

PIN

Symbol

Notes

1

Rx GND

Directly connect this pin to the receiver ground plane

2

RD+

See recommended circuit schematic

3

RD

−

See recommended circuit schematic

4

SD

Active high on this indicates a received optical signal

5

Rx Vcc

+5V dc power for the receiver section

6

Tx Vcc

+5V dc power for the transmitter section

7

TD

−

See recommended circuit schematic

8

TD+

See recommended circuit schematic

9

Tx GND

Directly connect this plan to the trransmitter ground plane

RECOMMENDED CIRCUIT SCHEMATIC

10nF

10uF

10nF

10uF

RX GND

1

2

3

4

5

6

7

8

9

POST

Amp

LD

Driver

Z=50R

Z=50R

Z=50R

Z=50R

TX GND

1uH

1uH

TD-

TD+

TX VCC

RX VCC

RD-

RD+

0.1uF

0.1uF

100R

Transceiver

SD

100R

VCC

SD (TTL)

R3

R4

R1

R2

PECL

PECL

For Vcc=5V, R1=R2=R3=R4= 330R

The split-load terminations for ECL signals need to be located at the input of devices receiving those ECL signals. The

power supply filtering is required for good EMI performance. Use short tracks from the inductor L1/L2 to the module Rx

Vcc and Tx Vcc. A GND plane under the module is required for good EMI and sensitivity performance.