lan8710 Standard Microsystems Corp., lan8710 Datasheet - Page 18

• Manufacturer Part Number: lan8710
• Description: Mii/rmii 10/100 Ethernet Transceiver With Hp Auto-mdix And Flexpwr Technology In A Small Footprint
• Manufacturer: Standard Microsystems Corp.

Revision 1.0 (04-15-09)
3.6
3.7
SIGNAL
SIGNAL
SIGNAL
VDDCR
VDD1A
VDD2A
VDDIO
RBIAS
NAME
NAME
NAME
RXP
RXN
TXN
VSS
Analog Reference
Power Signals
32-QFN
32-QFN
32-QFN
PIN #
PIN #
PIN #
FLAG
Table 3.6 10/100 Line Interface Signals (continued) 32-QFN (continued)
28
31
30
32
12
27
6
1
TYPE
TYPE
TYPE
GND
AIO
AIO
AIO
AI
P
P
P
P
Transmit/Receive Negative Channel 1.
Transmit/Receive Positive Channel 2.
Transmit/Receive Negative Channel 2.
External 1% Bias Resistor. Requires a 12.1k ohm (1%) resistor to ground
connected as described in the Analog Layout Guidelines. The nominal
voltage is 1.2V and the resistor will dissipate approximately 1mW of power.
+1.6V to +3.6V Variable I/O Pad Power
+1.2V (Core voltage) - 1.2V for digital circuitry on chip. Supplied by the on-
chip regulator unless configured for regulator off mode using the
LED1/REGOFF pin. A 1uF decoupling capacitor to ground should be used on
this pin when using the internal 1.2V regulator.
+3.3V Analog Port Power to Channel 1.
+3.3V Analog Port Power to Channel 2 and to internal regulator.
The flag must be connected to the ground plane with a via array under the
exposed flag. This is the ground connection for the IC.
Table 3.7 Analog References 32-QFN
Table 3.8 Power Signals 32-QFN
MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR
DATASHEET
18
DESCRIPTION
DESCRIPTION
DESCRIPTION
SMSC LAN8710/LAN8710i
®
Technology in a Small Footprint
Datasheet