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LMK61E0-156M: Evaluation Board For Oscillator

Sujoy Ghosh
Prodigy 10 points
Part Number: LMK61E0-156M

Hi, 

Would we be able to use a LMK61E0-156M25 oscillator on the LMK61E2-156M25EVM evaluation board? This would involve removing the LMK61E2-156M25 oscillator that comes pre-installed on the evaluation board and installing a LMK61E0-156M25 oscillator, which we would purchase separately. I am asking because according to the webpage for the EVB (www.ti.com/.../LMK61E2-156M25EVM, the LMK61E0-156M25 is a supported product (under the "Supported Products" tab). This leads me to believe that the oscillator would be compatible with the evaluation board. I would like to confirm that they are compatible.

If there is an alternative evaluation board that is suggested for the LMK61E0-156M25 oscillator, then please let me know.

Thank you in advance for the help!

Best regards,

Sujoy Ghosh

  • 0
    TI__Expert 6140 points

    Hello Sujoy, 

    Yes, this should be perfectly doable. The 2 parts share datasheet and pinout - the only different is the start configuration which internally set. So yes if you de-solder the 61E2 and solder on the 61E0 you can measure the 61E0 performance. 

    Regards,

    Amin

  • 0 in reply to Amin Eshraghi
    Prodigy 10 points

    Hi Amin,

    Thank you very much for the response!

    Could you please elaborate on what you mean regarding the "different start configuration which is internally set"? Would it have any effect on what we would need to do to boot/operate the EVB?

    Best regards,

    Sujoy

  • 0 in reply to Sujoy Ghosh
    TI__Expert 6140 points

    No as I said it does not impact how the board is set. 

    Internal registers determine whether the part is 100 MHz or 125 MHz or LVDS or LVPECL, etc. Essentially all different OPNs shown on the datasheet: 

    On the board, as long as soldering is done correctly, pin out is not different. 

    Regards,

    Amin 

  • 0 in reply to Amin Eshraghi
    TI__Expert 6140 points

    ^ I should say all different OPNs except different ppm stability - that is not done via register setting. 

    But again for your question, this is irrelevant. You can use another parts EVM and solder a different device onto it. 

    Regards,

    Amin