LAN9420 Datasheet, PDF (20/171 Pages) SMSC Corporation – Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface

Single-Chip Ethernet Controller with HP Auto-MDIX Support and PCI Interface
Datasheet
NUM
PINS
2
1
NAME
+3.3V
Analog
Power
Supply
+1.8V PLL
Power
Supply
+1.8V TX
Power
1
Supply
+3.3V
1
Master Bias
Power
Supply
+3.3V I/O
15
Power
21
Ground
+1.8V Core
3
Power
Table 2.6 Power and Ground Pins
SYMBOL
VDD33A
BUFFER
TYPE
DESCRIPTION
P
+3.3V Analog Power Supply
Refer to the LAN9420/LAN9420i application note for
connection information.
VDD18PLL
VDD18TX
VDD33BIAS
P
+1.8V PLL Power Supply: This pin must be connected
to VDD18CORE for proper operation.
Refer to the LAN9420/LAN9420i application note for
additional connection information.
P
+1.8V Transmitter Power Supply: This pin must be
connected to VDD18CORE for proper operation.
Refer to the LAN9420/LAN9420i application note for
additional connection information.
P
+3.3V Master Bias Power Supply
Refer to the LAN9420/LAN9420i application note for
additional connection information.
VDD33IO
VSS
VDD18CORE
P
+3.3V Power Supply for I/O Pins and Internal
Regulator
Refer to the LAN9420/LAN9420i application note for
additional connection information.
P
Common Ground for I/O Pins, Core, and Analog
Circuitry
P
Digital Core +1.8V Power Supply Output from
Internal Regulator
Refer to the LAN9420/LAN9420i application note for
additional connection information.
NUM
PINS
17
NAME
No Connect
Table 2.7 No-Connect Pins
SYMBOL
NC
BUFFER
TYPE
DESCRIPTION
-
No Connect: These pins must be left floating for
normal device operation.
Revision 1.6 (07-18-11)
20
DATASHEET
SMSC LAN9420/LAN9420i