88e3015 Marvell Semiconductor, Inc., 88e3015 Datasheet - Page 119

• Manufacturer Part Number: 88e3015
• Description: Integrated 10/100 Fast Ethernet Transceiver
• Manufacturer: Marvell Semiconductor, Inc.

6.3 Transmitter - Receiver Diagram
Figure 35: Transmitter - Receiver Diagram
Copyright © 2006 Marvell
October 26, 2006, Advance
Marvell
Common mode:
Sink 15 mA
Sink 0 mA
174
174
3.3V
3.3V
69
69
®
Ω
Ω
Ω
Ω
Transmitter
100BASE-FX PHY
V
V
i
2.36 + 1.62
V =
2
V = 3.3 - (15 + i) 69 = 174i
V = 1.62V
Document Classification: Proprietary Information
OFF
174 + 69
ON
174
= 2V
x 3.3 = 2.36V
CONFIDENTIAL
1.2V to 2.5V. The middle value of 1.65V
Marvell
The receiver should be biased between
is choosen as an example.
1k
®
3.3V
1k
100BASE-FX PHY
Ω
Ω
Receiver
Transmitter - Receiver Diagram
1.65V
Doc. No. MV-S103657-00, Rev. C
Page 119