Optoway

BTR-7810G

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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

V2.0

4

RECOMMENDED CIRCUIT SCHEMATIC

RXGND

1

RD+

2

RD-

3

RXVCC

5

TXVCC

6

TD-

7

TD+

8

SD

4

TXGND

9

U2

MICROSTRIP6

Z=5OR

MICROSTRIP5

Z=50R

L2

1uH

C2

100nF

C4

10uF

C3

100nF

Vcc3.3V

L1

1uH

C8

10uF

C1

100nF

MICROSTRIP8

Z=5OR

MICROSTRIP7

Z=50R

R21

1K

PHY DEVICE

TD-

TD+

RD+

RD-

C9

100nF

C10

100nF

R14

100R

C12

100nF

C11 100nF

R3

NA

R4

NA

Vcc3.3V

R2

NA

R1

NA

Vcc3.3V

Vcc3.3V

LVPECL

Vcc3.3V

LVPECL

SD / LVPECL

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) Pigtail Type

BTR-7810-SP50G / BTR-7810C-SP50G

Note: Length L is 50

± 3 cm. Other pigtail’s length is available upon request.