Micrel, Inc.
KSZ8041NL/RNL
Reference Circuit for Power and Ground Connections
The KSZ8041NL/RNL is a single 3.3V supply device with a built-in 1.8V low noise regulator. The power and ground
connections are shown in Figure 8 and Table 6.
Ferrite
Bead
`
2
10uF
0.1uF
VIN
VOUT
3
1.8V Low Noise
Regulator
(integrated)
`
VDDA_3.3
22uF
0.1uF
17
3.3V
VDDIO_3.3
`
22uF
0.1uF
GND
KSZ8041NL/RNL
1
Paddle
Figure 8. KSZ8041NL/RNL Power and Ground Connections
Power Pin
VDDPLL_1.8
VDDA_3.3
VDDIO_3.3
Pin Number Description
2
3
Decouple with 10uF and 0.1uF capacitors to ground.
Connect to board’s 3.3V supply through ferrite bead.
Connect to board’s 3.3V supply.
17
Table 6. KSZ8041NL/RNL Power Pin Description
September 2010
31
M9999-090910-1.4
MICREL [ MICREL SEMICONDUCTOR ]
