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6 analog reference, Table 3.7 analog references 32-qfn, 7 power signals – SMSC FlexPWR LAN8710i User Manual

Page 18: Table 3.8 power signals 32-qfn, Analog reference, Power signals, 6 analog reference 3.7 power signals, Datasheet

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MII/RMII 10/100 Ethernet Transceiver with HP Auto-MDIX and flexPWR

®

Technology in a Small Footprint

Datasheet

Revision 1.0 (04-15-09)

18

SMSC LAN8710/LAN8710i

DATASHEET

3.6

Analog Reference

3.7

Power Signals

TXN

28

AIO

Transmit/Receive Negative Channel 1.

RXP

31

AIO

Transmit/Receive Positive Channel 2.

RXN

30

AIO

Transmit/Receive Negative Channel 2.

Table 3.7 Analog References 32-QFN

SIGNAL

NAME

32-QFN

PIN #

TYPE

DESCRIPTION

RBIAS

32

AI

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.

Table 3.8 Power Signals 32-QFN

SIGNAL

NAME

32-QFN

PIN #

TYPE

DESCRIPTION

VDDIO

12

P

+1.6V to +3.6V Variable I/O Pad Power

VDDCR

6

P

+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.

VDD1A

27

P

+3.3V Analog Port Power to Channel 1.

VDD2A

1

P

+3.3V Analog Port Power to Channel 2 and to internal regulator.

VSS

FLAG

GND

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 3.6 10/100 Line Interface Signals (continued) 32-QFN (continued)

SIGNAL

NAME

32-QFN

PIN #

TYPE

DESCRIPTION

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