Hello,
For an external clock source, please clarify if the TLK100 Ethernet PHY really needs a "nominal voltage of 1.8V" as stated in the datasheet (see page 36 of datasheet).
I believe it should be 3.3V nominal.
Also, a very similar part (TLK110) states "a nominal voltage of 3.3V" in that datasheet (see page 40), which would correspond to CMOS voltage levels I would expect in a single power supply design using either part.
This is a big design difference, so please advise ASAP.
Thanks!
Can someone please advise on this.
Thanks,
Madhu
for the TLK100 ethernet PHY the Data sheet is correct .The amplitude of the oscillator should be a nominal voltage of 1.8V
you can use the internal oscillator with an external crystal (and so avoid using external oscillator with 1.8v).
for the TLK110 ethernet PHY the Data sheet is also correct .The amplitude of the oscillator should be a nominal voltage of 3.3V
Regards,
Aviad