Hello,
i consider to swap the crystal from an ksz9031 for the next board revision against an LMK6CE025.000CLDF. i am unsure how the schematic have to be changed.
please check my schematic.
Is the LMK6CE025.000CLDF an valid replacement?
Crystal recommendations from the ksz9031:
From the Datasheet
If the 25 MHz reference clock is provided externally, the XI input pin should have a minimum clock voltage peak-to-peak (VPP) swing of 2.5V reference to ground. If VPP is less than 2.5V, series capacitive coupling is recommended. With capacitive coupling, the VPP swing can be down to 1.5V. Maximum VPP swing is 3.3V +5%.
| Characteristics | Value |
| Frequency | 25 MHz |
| Frequency Tolerance (max.) | ±50 ppm |
| Crystal Series Resistance (typ.) | 40Ω |
| Total Period Jitter (peak-to-peak) | <100 ps |
