DP83TC812R-Q1: Inquiry: Replacing Crystal with External 25 MHz Oscillator from MCU for PHY Clock Input

Tool/software:

Background:

• To eliminate the crystal and instead feed a 25 MHz clock from the MCU to the PHY’s XI pin to reduce BOM
• The MCU clock output is 5V, while the PHY expects a lower voltage, so plan to use a voltage divider.

Requirement specification

1. Could you give feedback if feeding the clock from MCU via voltage divider is acceptable? (Need to update measurement) Any Concerns?

2. if there are any additional electrical constraints (e.g., input impedance, drive strength, waveform shape) that must be met. From below circuit.