Optoway

TRS-7385-CXX0G

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Tel: 886-3-5979798

Fax: 886-3-5979737

E-mail: sales@optoway.com.tw

http: // www.optoway.com.tw

10/1/2005 V3.0

4

RECOMMENDED CIRCUIT SCHEMATIC

For TTL SD Level, R1=R2=N.C., R7=100 ohm

For PECL SD Level, R1=130 ohm, R2=82 ohm, R7=100 ohm

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

1) SC Type with Extended Shielding

TX OPTICAL

RX OPTICAL

TRS-7385-CXX0-EMG / TRS-7385C-CXX0-EMG

10nF

10uF

SD Level

10nF

10uF

Vcc 3.3V

RX GND

1

2

3

4

5

6

7

8

9

POST

Amp

LD

Driver

Z=50R

Z=50R

Z=50R

Z=50R

CDR or PHY DEVICE

TX GND

1uH

1uH

VCC 3.3V

VCC 3.3V

LVPECL

LVPECL

TD-

TD+

TX Vcc

RX Vcc

RD-

RD+

0.1uF

0.1uF

0.1uF

0.1uF

100R

180R

180R

Transceiver

SerDes IC

R7

R1

R2

VCC 3.3V

SD

RD-

RD+

TD-

TD+