AN983 ETC [List of Unclassifed Manufacturers], AN983 Datasheet - Page 91

• Manufacturer Part Number: AN983
• Description: PCI/miniPCI-to-Ethernet LAN Controller
• Manufacturer: ETC [List of Unclassifed Manufacturers]

Rev. 1.8
4). Provide sample power and ground planes
1). It is a good idea to fill in unused areas of the signal planes with solid copper
2). The signal ground region should be one continuous, unbroken plane extending from the
3). On right angle is recommend when partition the Vcc and GND plane.
4). For EMI consideration, please add 0.1uF caps between system GND and chassis GND.
5). Void the power and ground plane directly under the transformer.
6). The isolation voltage of the transformer should be rated to be greater than 2kv.
7). The sample board Vcc and GND plane at below side.
GND plane
transformer through the rest of the board.
Power
Trace
RJ45
Chassis
Ground
AN983B
Not Suggestted
VCC FROM PCI
Transformer
AN983B
Ground
System
Power
Switch
www.admtek.com.tw
ADMtek Inc.
PCI/miPCI Fast Ethernet Controller with integrated PHY
VCC PLANE
Power
PLANE
UNDER
CHIP
Good
AN983B
VCC FROM PCI
Power
Switch
91