6

2.5 Gbps Single Mode SFF LC Transceiver

C-1XX-2500(C)-FDFB-SLCX

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

LUMNDS851-Jul2005

rev. A.0

LUMINENTOIC.COM

Power Coupling

A suggested layout for power and ground connections is given in figure 4B below. Connections are made via separate voltage and ground

planes. The mounting posts are at case ground and should not be connected to circuit ground. The mounting posts are at case ground and

should not be connected to circuit ground. The ferrite bead should provide a real impedance of 50 to 100 ohms at 100 to 1000 MHz. Bypass

capacitors should be placed as close to the 10-pin connector as possible.

Figure 4A: Suggested Power Coupling-Electrical Schematic

TOP VIEW

VALUES:

C1, C2 = 1000pF,

C3,

= 0.1uF

C4,

= 10uF,

L1, L2 = Real impedance of 50 to

100 Ohms to 1000MHz.

LEHEND:

CIRCUIT GROUND PLANE CONNECTION

CASE GROUND

Vcc PLANE CONNECTION

NOTE :

1.) Components shown ore placed

on the bottom layer and are

viewed through the board.

C1 L2

C3 C4

L1

C2

Figure 4B: Suggested Power Coupling-Component Placement