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DP83826E: Interface forum

Part Number: DP83826E

This question is regarding value of capacitance used for connection of CEXT pin through a capacitor to GND.

  • The datasheet recommends using a 2nF capacitor for this purpose

  • When I look at the DP83826EVM schematic, then this pin is connected to GND through a 100nF capacitor

  • The snla344b application note design shows CEXT pin connected to GND via a parallel combination of 2.2mF and 100nF capacitors.

I have used 2.7nF in my design and I do not know if that is OK based on the above variety of different capacitances used for this purpose in different TI documents. I need help in selecting correct value.