5

155 Mbps DFB Laser Single Mode Transceiver

(Ultra-LR)

C-15-155-TDFB(3)-SXX10(12)

20550 Nordhoff St. • Chatsworth, CA 91311 • tel: 818.773.9044 • fax: 818.576.9486

9F, No 81, Shui Lee Rd. • Hsinchu, Taiwan, R.O.C. • tel: 886.3.5169222 • fax: 886.3.5169213

LUMINENTOIC.COM

LUMNDS813-Jul0706

Rev A.2

Recommended Circuit Schematic

The split-loaded 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.

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

1

2

3

4

5

9

7

8

6

Rx Vcc

Tx Vcc

Transceiver

Top view

No internal

connection

No internal

connection

C2

C1

C4

L2

C3

L1

Rx Vcc

Tx Vcc

Vcc

Tx Vcc

Rx Vcc

RD +

RD -

SD

TD +

TD -

R8

R10

R9

R7

C6

C5

R1

R3

R2

R4

R5

R6

Notes +3.3V:

R1=R3=R5=R7=R9=130

R2=R4=R6=R8=R10=82

C1=C2=C3=C5=C6=0.1F

C4=10F

L1=L2=1H

Notes +5V:

R1=R3=R5=R7=R9=82

R2=R4=R6=R8=R10=130

C1=C2=C3=C5=C6=0.1F

C4=10F

L1=L2=1H