Optoway

TRM-7000

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Tel: 886-3-5979798

Fax: 886-3-5979737

E-mail: sales@optoway.com.tw

http: // www.optoway.com.tw

8/1/2004 V2.0

RECOMMENDED CIRCUIT SCHEMATIC

10nF

10uF

1uH

1uH

Z=50R

Z=50R

Z=50R

Z=50R

R3

R5

LD

Driver

Post

Amp

TD+

TD-

TX GND

RX GND

RD+

RD-

10nF

10uF

TX VCC

RX VCC

Transceiver

1

3

4

9

8

5

6

7

SD Level

2

120R

R4

R6

SD

R1

R2

VCC 5V

VCC 5V

VCC 5V

0.1uF

0.1uF

SerDes IC

TD+

TD-

RD-

RD+

For TTL SD Level R1=R2=N.C., R3=R5=82R, R4=R6=130R

For PECL SD Level R1=R3=R5=82R, R2=R4=R6=130R

PECL

CDR or PHY DEVICE

VCC 5V

PECL

VCC 5V

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.

PACKAGE DIAGRAM

Units in mm

TX OPTICAL

RX OPTICAL

TRM-7000-EM / TRM-7000C-EM

Note: Specifications subject to change without notice.