Datasheet

Hi-Speed USB 2.0 to 10/100/1000 Ethernet Controller
Datasheet
SMSC LAN7500/LAN7500i 37 Revision 1.0 (11-01-10)
DATASHEET
6.2 Power Supply & Twisted Pair Interface Diagram
Figure 6.2 Power Supply & Twisted Pair Interface Diagram
LAN7500/LAN7500i
VSS
VDD12PLL
C
BYPASS
VDD12BIAS
C
BYPASS
VDD12CORE (x6)
C
BYPASS
VDDVARIO (x4)
C
BYPASS
x6
x4
Power
Supply
2.5V – 3.3V
Power
Supply
1.2V
VDD12USBPLL
(x4) VDD12A
USBRBIAS
12.0K Ohm
1%
C
BYPASS
VDD33A
Power
Supply
3.3V
C
BYPASS
ETHRBIAS
8.06K Ohm
1%
Magnetics
TR0P
TR0N
1
2
3
4
5
6
7
8
1000 pF
2 kV
Circuitry within the dotted line is for Channel 0.
Duplicate this circuit for Channels 1, 2 and 3.
RJ45
75
C
BYPASS
49.9 49.9
0.022uF
Note: 0.022uF capacitor is optional. In
an EMI constrained environment,
populate this capacitor. The component
must be placed close to the transformer.