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LMK05318: Output configuration

Vincent Chen64988
Expert 4480 points

Part Number: LMK05318

Hi Team,

My customer would like to know how to configure CH6 as 1.8V CMOS single-end output?

The VDDO is 3.3V in SCH.

Thanks a lot.

Vincent Chen

  • +1
    TI__Expert 6140 points

    Hello Vincent,

    All CMOS options are single ended outputs. The question is what they would like to have happen to the n side of the channel, if they're using p-side, and alternatively they can choose to just use the n-side.

    • CMOS (+/-), CMOS (-/+), CMOS(+/+) and CMOS (-/-) : implies p and n channel active. Option to have complimentary (180 degree phase shifted) or in phase. Also option on which channel starts high first and vice versa.
    • CMOS (+/HiZ), CMOS(-/HiZ), CMOS(HiZ/+), and CMOS(HiZ/-): are all with one side of the channel active and the other side in high impedance state, not active. Option to select whether that's n side or p side and whether it starts high or low.
    • CMOS (hiZ/hiZ) and CMOS (low/low): no active output. Essentially channel is disabled and powered down.

    CMOS support is only 1.8V on LMK05318 irrelevant of whether Vddo = 3.3 or Vddo = 1.8.

    Regards,

    Amin

  • 0 in reply to Amin Eshraghi
    TI__Expert 4480 points

    Hi Amin,

    Got it, thanks very much for your detail description.

    Best Regards,

    Vincent Chen