Broadcom BCM5221 - 10;100 TWISTED PAIR MII TO MDI

■ BCM5221 Product Application Note
■ BCM5220 7/7/00
Broadcom Corporation
Page 15 5221/5220-AN01 Product Application Note, Revision R
Figure 8: Multiport Power Plane Example
10/100 TWISTED PAIR MII TO MDI
Figure 9 on page 16 represents a typical 10/100 twisted pair DTE implementations, MII to MDI inclusive, for the BCM5221.
This example assumes the use of 2.5V VDD for the system, with the digital interface running at 3.3V.
Logic Power Plane (2.5V or 3.3V)
Magnetics
Magnetics
BCM5221
RJ45-8RJ45-8
ASIC /
MAC
ASIC /
MAC
BCM5221
Chassis Ground Plane