TLK100_11 Datasheet, PDF (12/88 Pages) Texas Instruments – Industrial Temp, Single Port 10/100 Mb/s Ethernet Physical Layer Transceiver

TLK100
SLLS931B – AUGUST 2009 – REVISED DECEMBER 2009
www.ti.com
Other power supply options – Because the TLK100 incorporates independent voltage regulators,
designers may take advantage of several optional configurations, depending on available power supplies.
See Table 2-1 for these options.
Mode
Single Supply
Operation
Lowest Power
Consumption
MAC I/F
(3.3V)
Voltage Source
3.3V from
external supply
3.3V from
external supply
3.3V from
external supply
3.3V from
external supply
3.3V from
external supply
3.3V from
external supply
3.3V from
external supply
3.3V from
external supply
3.3V from
external supply
Table 2-1. Power Supply Options
Transformer CT
(3.3V or 1.8V)
Voltage Source
3.3V from
external supply
3.3V from
external supply
3.3V from
external supply
3.3V from
external supply
3.3V from
external supply
3.3V from
external supply
1.8V from
external supply
1.8V from
external supply
1.8V from
external supply
(1.8V)
Regulator
(ON/OFF)
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
Voltage Source
3.3V from
external supply
3.3V from
external supply
3.3V from
external supply
2.5V from
external supply
2.5V from
external supply
2.5V from
external supply
1.8V from
external supply
1.8V from
external supply
1.8V from
external supply
(1.1V)
Regulators
(ON/OFF)
ON
ON
OFF
ON
ON
OFF
ON
ON
OFF
Voltage Source
3.3V from
external supply
2.5V from
external supply
1.1V from
external supply
3.3V from
external supply
2.5V from
external supply
1.1V from
external supply
3.3V from
external supply
2.5V from
external supply
1.1V from
external supply
When operating with multiple supplies, it is recommended that the 3.3V supply ramps up at least 200ms
before the 1.8V and 1.1V supplies ramp up.
12
Pin Descriptions
Submit Documentation Feedback
Product Folder Link(s): TLK100
Copyright © 2009, Texas Instruments Incorporated