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TLK100PHPR Datasheet(PDF) 9 Page - Texas Instruments |
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TLK100PHPR Datasheet(HTML) 9 Page - Texas Instruments |
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9 / 88 page  TLK100 www.ti.com SLLS931B – AUGUST 2009 – REVISED DECEMBER 2009 2.8 10 Mb/s and 100 Mb/s PMD Interface PIN TYPE DESCRIPTION NAME NO. Differential common driver transmit output (PMD Output Pair). These differential outputs are automatically configured to either 10BASE-T or 100BASE-TX signaling. TD–, TD+ 8, 9 I/O In Auto-MDIX mode of operation, this pair can be used as the Receive Input pair. These pins require 1.8V or 3.3V bias for operation. Differential receive input (PMD Input Pair). These differential inputs are automatically configured to accept either 100BASE-TX or 10BASE-T signaling. RD–, RD+ 5, 6 I/O In Auto-MDIX mode of operation, this pair can be used as the Transmit Output pair. These pins require 1.8V or 3.3V bias for operation. 2.9 Power and Bias Connections PIN TYPE DESCRIPTION NAME NO. RBIAS 3 I Bias Resistor Connection. Use a 4.99k Ω 1% resistor connected from RBIAS to GND. 1.8V Power Feedback Output. A 1 μF capacitor (ceramic preferred), should be placed close to the V18_PFBOUT 40 O V18_PFBOUT. In single supply operation, connect this pin should be connected to V18_PFBIN1 and V18_PFBIN2 (pin 2 and pin 4). See Figure 2-1 for proper placement pin. In multiple supply operation, when supplying 1.8V from external supply, this pin should be connected together with VDD33_V18 (pin 41), V18_PFBIN1 and V18_PFBIN2 (pin 2 and pin 4) to the 1.8V external supply source. See Figure 2-2 for proper placement pin. 1.1V Analog Power Feedback Output. A 1 μF capacitor (Ceramic preferred), should be placed close to VA11_PFBOUT 10 O the VA11_PFBOUT. In single supply operation this pin should be connected to VA11_PFBIN1 and V11_PFBIN2 (pin 1 and pin 7). See Figure 2-1 for proper placement pin. In multiple supply operation, when supplying 1.1V from external supply, this pin should be connected together with VDD33_VA11 (pin 11), V11_PFBIN1 and V11_PFBIN2 (pin 1 and pin 7) to 1.1V external supply source. See Figure 2-3 for proper placement pin. 1.8V Power Feedback Input. These pins are fed with power from V18_PFBOUT (pin 40) in single supply V18_PFBIN1 2 operation. I 1.8V from external source in multiple supply operation. A small 1 μF capacitor should be connected close V18_PFBIN2 4 to each pin. 1.1V Analog Power Feedback Input. These pins are fed with power from: VA11_PFBOUT (pin 10) in VA11_PFBIN1 1 single supply operation. I 1.1V from external source in multiple supply operation. A small capacitor of 0.1 μF should be connected VA11_PFBIN2 7 close to each pin. VDD11 20 O 1.1V Core Power Output. A capacitor of 1 μF (Ceramic preferred) , should be placed close to the VDD11 17 VDD33_IO P I/O 3.3V Supply 29 External supply input to 1.1V analog regulator VDD33_VA11 11 P This pin should be connected to 3.3V or 2.5V external supply, in single supply operation. In multiple supply operation this pin should be connected to external 1.1V supply source. External supply input to 1.8V regulator VDD33_V18 41 P In single supply operation, this pin should be connected to a 3.3V or 2.5V external supply. In multiple supply operation this pin should be connected to an external 1.8V supply source. External supply input to 1.1V Core regulator VDD33_VD11 21 P This pin should be connected to 3.3V or 2.5V external supply, in single supply operation. In multiple supply operation this pin should be connected to external 1.1V supply source. VSS 38 P Ground pin for Oscillator GNDPAD 49 P Ground Pad Copyright © 2009, Texas Instruments Incorporated Pin Descriptions 9 Submit Documentation Feedback Product Folder Link(s): TLK100 |
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