VSC8201DL VITESSE [Vitesse Semiconductor Corporation], VSC8201DL Datasheet - Page 3

• Manufacturer Part Number: VSC8201DL
• Description: Single Port 10/100/1000BASE-Tand 1000BASE-X PHY
• Manufacturer: VITESSE [Vitesse Semiconductor Corporation]

In addition, a ferrite bead should be used to isolate each analog supply from the rest of the board. The bead should be placed in series
between the bulk decoupling capacitors and the local decoupling capacitors.
The beads should be chosen to have the following characteristics:
•
•
Recommended beads are:
•
•
Rev. 1.6.3 - 9/29/04
Current Rating of at least 150% of the maximum current of the power supply.
Impedance of 80 to 100W at 100Mhz.
Panasonic EXCELSA39 or similar.
Steward HI 1206N101R-00 or similar.
Figure 2: Local High-Frequency decoupling Capacitor Layout - LBGA package
VITESSE - CONFIDENTIAL & PROPRIETARY - DO NOT COPY WITHOUT PERMISSION
Note:Place vias close to or under neath the capacitor pads for
Figure 3: Power Supply Decoupling Schematic
low inductive path and higher heat dissipation rate.
.
0.1 uF
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VSC8201DL