CS8900-CQ View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
CS8900-CQ Datasheet PDF : 132 Pages
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11.0 10BASE-T Wiring
CS8900
TXD + Rt
TXD -
Rt
68 pF
0.01 µF
1: 2
RXD+
+
- RXD-
0.01 µF
1:1
Rr
Rr
CS8900
TD +
1
TD -
2
RJ45
RD +
3
RD -
6
NOTES:
1. If a center tap transformer is used on the RXD+ and RXD- inputs, replace the pair of Rr resistors
with a single 2xRr resistor.
2. The Rt and Rr resistors are +/- 1% tolerance.
3. The CS8900 supports 100, 120, and 150Ω unshielded twisted pair cables. The proper
values of Rt and Rr, for a given cable impedance, are shown below:
Cable Impedance
Rt
Rr
(Ω)
(Ω)
(Ω)
100
24.3
49.9
120
30.1
60.4
150
37.4
75
DS150PP2
123
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