lu82562ex Intel Corporation, lu82562ex Datasheet - Page 63

• Manufacturer Part Number: lu82562ex
• Description: Dual Footprint
• Manufacturer: Intel Corporation

A.6
Figure 12. Direct Probing Method
Direct Frequency Measurement and Frequency Accuracy
Calculation Steps
1. Make sure the system BIOS has the LAN controller enabled.
2. Connect the test equipment as shown in
3. Using the appropriate controls for your model of high resolution digital counter, make sure it
4. Ensure the LAN circuits are powered.
5. Determine the center reference frequency as accurately as possible. This can be done by taking
6. Calculate the accuracy of the measured and averaged center frequency with respect to an ideal
can display ~25.0000 MHz with at least four decimal places frequency resolution.
30 to 50 different readings using the frequency counter and then calculating the average results
of the readings.
25.0000 MHz reference frequency.
82562EZ(EX)/82547GI(EI) Dual Footprint Design Guide
Figure
12.
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