Small Footprint MII/RMII 10/100 Ethernet Transceiver for Automotive Applications
Datasheet
Table 2.6 Analog Reference Pins
BUFFER
NUM PINS
NAME
SYMBOL
TYPE
DESCRIPTION
External 1%
Bias Resistor
Input
RBIAS
AI
This pin requires connection of a 12.1 kΩ (1%)
resistor to ground.
Refer to the LAN88710AM/LAN88710BM
reference schematic for connection information.
1
Note:
The nominal voltage is 1.2 V and the
resistor will dissipate approximately
1 mW of power.
Table 2.7 Power Pins
BUFFER
TYPE
NUM PINS
NAME
SYMBOL
DESCRIPTION
+1.6 V to
+3.6 V
Variable I/O
VDDIO
P
+1.6 V to +3.6 V variable I/O power.
1
Refer to the LAN88710AM/LAN88710BM
reference schematic for connection information.
Power
+1.2 V Digital
Core Power
Supply
VDDCR
P
Supplied by the on-chip regulator unless
configured for regulator off mode via the
REGOFF configuration strap.
Refer to the LAN88710AM/LAN88710BM
1
1
reference schematic for connection information.
Note:
A 1 µF decoupling capacitor to ground
should be used on this pin when using
the internal 1.2 V regulator.
+3.3 V
Channel 1
Analog Port
Power
VDD1A
VDD2A
P
P
+3.3 V Analog Port Power to Channel 1.
Refer to the LAN88710AM/LAN88710BM
reference schematic for connection information.
+3.3 V
Channel 2
Analog Port
Power
+3.3 V Analog Port Power to Channel 2 and the
internal regulator.
1
1
Refer to the LAN88710AM/LAN88710BM
reference schematic for connection information.
Ground
VSS
P
Common ground. This exposed pad must be
connected to the ground plane with a via array.
Revision 1.1 (05-26-10)
16
SMSC LAN88710AM/LAN88710BM
DATASHEET
SMSC [ SMSC CORPORATION ]
