ksz8051mlli Micrel Semiconductor, ksz8051mlli Datasheet - Page 26

• Manufacturer Part Number: ksz8051mlli
• Description: 10base-t/100base-tx Physical Layer Transceiver
• Manufacturer: Micrel Semiconductor

Micrel, Inc.
Reference Circuit for Power and Ground Connections
The KSZ8051MLL is a single 3.3V supply device with a built-in regulator to supply the 1.2V core. The power and ground
connections are shown in Figure 6 and Table 6 for 3.3V VDDIO.
July 2010
Power Pin
VDD_1.2
VDDA_3.3
VDDIO
VDD_1.2
Figure 6. KSZ8051MLL Power and Ground Connections
Pin Number
Table 6. KSZ8051MLL Power Pin Description
25
31
4
7
Description
Connect with pin 31 by power trace or plane.
Decouple with 2.2uF and 0.1uF capacitors to ground.
Connect to board’s 3.3V supply thru ferrite bead.
Decouple with 22uF and 0.1uF capacitors to ground.
Connect to board’s 3.3V supply for 3.3V VDDIO.
Decouple with 22uF and 0.1uF capacitors to ground.
Connect with pin 4 by power trace or plane.
Decouple with 0.1uF capacitor to ground.
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M9999-071210-1.0
KSZ8051MLL