Datasheet

Pin 13
(RD–)
RD –
Pin 14
(RD+)
RD +
49.9W
3.3V
Supply
0.1 Fm
Pin 16
(TD–)
TD –
Pin 17
(TD+)
TD +
49.9W
1:1
1:1
T1
RJ45
Pin 22
(AVDD33)
Pin 23
(PFBOUT)
Pin 18
(PFBIN1)
Pin 37
(PFBIN2)
3.3V
Supply
10 Fμ
Pin 32
(VDD_IO)
Pin 48
(VDD_IO)
0.1 Fμ
49.9W
0.1 F*m
0.1 F*m
49.9W
0.1 Fμ
0.1 Fμ
3.3V
Supply
3.3V
Supply
10 Fm10nF1nF100pF
10 Fm 10nF 1nF 100pF
1 Fm
1 Fm
1 Fm
0.1 F*m
1 Fm
3.3V
Supply
10 Fm10nF1nF100pF
TLK110
www.ti.com SLLS901D –DECEMBER 2011–REVISED JANUARY 2014
3.2 Power Supply Configuration
The TLK110 provides best-in-class flexibility of power supplies.
3.2.1 Single Supply Operation
If a single 3.3V power supply is desired, the TLK110 internal regulator provides the necessary core supply
voltages. Ceramic capacitors of 10µf and 0.1µf should be placed close to the PFBOUT (pin 23) which is
the output of the internal regulator. The PFBOUT pin should be connected to the PFBIN1 and PFBIN2 on
the board. A small capacitor of 0.1µF should be placed close to the PFBIN1 (pin 18) and PFBIN2 (pin 37).
To operate in this mode, connect the TLK110 supply pins as shown in Figure 3-1.
Figure 3-1. Power Connections for Single Supply Operation
Copyright © 2011–2014, Texas Instruments Incorporated Hardware Configuration 9
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