KSZ8001SLI Micrel Semiconductor, Inc., KSZ8001SLI Datasheet - Page 24

• Manufacturer Part Number: KSZ8001SLI
• Description: 1.8V, 3.3V 10/100BASE-T/TX/F Physical Layer Transceiver
• Manufacturer: Micrel Semiconductor, Inc.

March 2006
Micrel
Reference Clock Connection Options
KSZ8001 is capable of performing three different kinds of clock speed options for connecting the external reference clock depends
upon the different interface of using MII/RMII/SMII. The figures below illustrate the recommended connection for using the different
interface options. Please see the selection of reference crystal table for specifications.
50/125 MHz Oscillator Reference Clock Connection for RMII/SMII Mode Diagram
25MHz Oscillator Reference Clock Connection Diagram
25MHz Crystal Reference Clock Connection Diagram
50/125MHz Osc
25MHz Osc
+/-50ppm
+/-50ppm
27pF
27pF
27pF
27pF
VCC
25MHz Xtal
+/-50ppm
10K
NC
NC
NC
NC
24
XI
XO
XI
XO
XI
XO
REF_CLK
Revision 1.03
KSZ8001