am79c875 Advanced Micro Devices, am79c875 Datasheet - Page 37

• Manufacturer Part Number: am79c875
• Description: Netphy ?lp Low Power Quad 10/100-tx/fx Ethernet Transceiver
• Manufacturer: Advanced Micro Devices

Figure 12. MLT-3 and 10BASE-T Test Load with 1.25:1 Transformer Ratio
Figure 11. MLT-3 and 10BASE-T Test Load with 1:1 Transformer Ratio
+V
-V
TX±
TXOUT
TXOUT
V
TXOS
Figure 13. Near-End 100BASE-TX Waveform
TX+
TX-
TX+
TX-
78.1
49.9
Ω
Ω
78.1
49.9
V
0.01 µF
Ω
DD
V
0.01 µF
Ω
Am79C875
DD
Transformer
112 ns
Isolation
• 1:25:1 •
Transformer
Isolation
• 1:1 •
75 Ω 5%
0.01 µF
Chassis Ground
75 Ω 5%
0.01 µF
Chassis Ground
100 Ω 2%
100 Ω 2%
V
TXOUT
22236G-14
22236G-13
22236G-15
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