Datasheet

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DP83849ID
5.2 Fiber Network Circuit
Figure 13 shows the recommended circuit for a 100 Mb/s
fiber pair interface.
Figure 13. 100 Mb/s Fiber Pair Interface
FXTDP
FXTDM
FXRDP
FXRDM
130
Ω
80
Ω
130
Ω
Fiber Transceiver
Vdd
All values are typical and are +/- 1%
PLACE RESISTORS AND
CAPACITORS CLOSE TO
THE DEVICE.
PLACE RESISTORS
CLOSE TO THE FIBER
TRANSCEIVER.
0.1 uF
0.1 uF
130
Ω
80
Ω
80
Ω
50
Ω
50
Ω
130
Ω
130
Ω
FXSD
80
Ω
80
Ω
TD+
TD -
SD
RD+
RD -