lxt9785 Intel Corporation, lxt9785 Datasheet - Page 169

• Manufacturer Part Number: lxt9785
• Description: Advanced 8-port 10/100 Mbps Phy Transceivers
• Manufacturer: Intel Corporation

Datasheet
Document Number: 249241
Revision Number: 007
Revision Date: August 28, 2003
Figure 37. Recommended Intel
Circuitry
1. Refer to the transceiver manufacturers’ recommendations for termination circuitry.
2. See
LXT9785(E)
GNDPECL
VCCPECL
SD_2P5V
TPFONn
TPFOPn
TPFINn
TPFIPn
LXT9785 and LXT9785E Advanced 8-Port 10/100 Mbps PHY Transceivers
Figure 38 on page 172
SDn
+2.5V
®
:
:
PF
PF
LXT9785/LXT9785E-to-5 V Fiber Transceiver Interface
+2.5V
+2.5V
2
3.3V
:
PF
PF
:
:
ON Semiconductor*
for recommended logic translator interface circuitry.
PECL-to-LVPECL
Logic Translator
MC100LVEL92
PF
PF
:
:
PF
PF
k:
k:
:
k:
+5V
:
k:
TD +
Fiber Txcvr
TD -
RD +
RD -
SD
PF
PF
5V
1
171