FWLXT9785BC Cortina Systems Inc, FWLXT9785BC Datasheet - Page 167
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FWLXT9785BC
Manufacturer Part Number
FWLXT9785BC
Description
Manufacturer
Cortina Systems Inc
Datasheet
1.FWLXT9785BC.pdf
(221 pages)
Specifications of FWLXT9785BC
Lead Free Status / RoHS Status
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LXT9785/LXT9785E
Datasheet
249241, Revision 11.0
16 April 2007
Figure 36
Cortina Systems
Recommended LXT9785/LXT9785E-to-3.3 V Fiber Transceiver Interface
Circuitry
®
LXT9785 and LXT9785E Advanced 8-Port 10/100 Mbps PHY Transceivers
1. Refer to the transceiver manufacturers’ recommendations for termination circuitry.
LXT9785(E)
GNDPECL
VCCPECL
SD_2P5V
TPFONn
TPFOPn
TPFINn
TPFIPn
SDn
+2.5V
27Ω
50Ω
+2.5V
0.01μF
− 0.1μF
50Ω
3.3V
0.01 μF
0.01 μF
− 0.1μF
+3.3V
0.01μF
130Ω
82Ω
+3.3V
130Ω
1.4kΩ
2kΩ
130Ω
1.3kΩ
2kΩ
5.3 Typical Application Circuits
Fiber Txcvr
TD -
TD +
SD
RD -
RD +
3.3V
1
Page 167
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