2.5 Gbps Single Mode SFF LC Transceiver
C-1XX-2500(C)-FDFB-SLCX
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
L1
C2
TOP VIEW
C3 C4
C1 L2
VALUES:
C1, C2 = 1000pF,
NOTE :
1.) Components shown ore placed
on the bottom layer and are
viewed through the board.
C3,
C4,
= 0.1uF
= 10uF,
LEHEND:
L1, L2 = Real impedance of 50 to
100 Ohms to 1000MHz.
Vcc PLANE CONNECTION
CIRCUIT GROUND PLANE CONNECTION
CASE GROUND
Figure 4B: Suggested Power Coupling-Component Placement
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9F, No 81, Shui Lee Rd. • Hsinchu, Taiwan, R.O.C. • tel: 886.3.5169222 • fax: 886.3.5169213
LUMINENTOIC.COM
LUMNDS851-Jul2005
rev. A.0
6