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LMK03000: Recommended OSCin Power for Operation with a Sine Wave Singled Input

user5163865
Genius 3455 points
Part Number: LMK03000

Hi,

Is it possible to input 10MHz to OSCin with a single end?
According to the data sheet "Figure 8-14. Recommended OSCin Power for Operation with a Sine Wave Input", the single-ended input seems to be above 50MHz.

If it can be used even at 10MHz, what is the minimum input power?

Best regards,
Hiroshi

  • +1
    TI__Mastermind 18070 points

    Hi Hiroshi,

    Since the input slew rate is not specified in the datasheet, I don't think there's any problem using sine wave at the input. The amplitude requirement is here and you can easily convert it to dBm assuming 50Ohm impedance. Just notice that for a square wave, the fundamental tone is 4/pi times of the square wave amplitude (according to Fourier series, you can double check), so the requirement for sine wave power is a little higher.

    Regards,
    Hao