HFCT-5903E Datasheet, PDF (5/12 Pages) Agilent(Hewlett-Packard) – MT-RJ Duplex Single Mode Transceiver

Interface and Termination
Recommendations
Figure 3 shows a +3.3 V coupling
scheme. Also present are power
supply filtering arrangements
which comply with the
recommendations of the small
form factor multisource
agreement. Such a compliance
ensures noise rejection
compatibility between
transceivers from various
vendors.
TERMINATE AT
TRANSCEIVER INPUTS
100 W
W Z = 50
W Z = 50
10 9 8 7 6
fffff
1 µH
V_CC (+3.3 V)
T_X
C2
C3
10 µF
R_X
1 µH



fffff
C1
12345
W Z = 50
W Z = 50
130 W 130 W
W Z = 50
Note: C1 = C2 = C3 = 10 nF or 100 nF
Figure 3. +3.3 V Transceiver Interface with +3.3 V LVPECL Device
5
PHY DEVICE
V_CC (+3.3 V)
TD-
TD+
130 W 130 W
LVPECL
V_CC (+3.3 V)
RD+
100 W
RD-
V_CC (+3.3 V)
130 W
SD
82 W
LVPECL
TERMINATE AT
DEVICE INPUTS