• State
  • Locked Locked
  • Replies 3 replies
  • Subscribers 21 subscribers
  • Views 481 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

lmk00301 sin input

gilad hochman
Prodigy 20 points
Other Parts Discussed in Thread: LMK00301

hey

i need one of the input of  the lmk00301 will be sinus  single ended

can i do it ?

if not what in need to do to convert it?

 

  • 0
    Prodigy 20 points

    hey

    can  the sinus input   be in the OSCin input?

  • 0 in reply to gilad hochman
    TI__Mastermind 28550 points

    Hello,

    Page 18 of the datasheet has some info on single ended inputs.  Figure 6 shows driving OSCin with single ended input and CMOS driver.

    If you use a sinewave into OSCin, consider the typical performance graphs showing slew rate of CLKin to output performance.  While OSCin input is not the same as CLKin, I estimate that if the slew rate of your sinewave is on the CLKin chart, you will be able to operate with sinewave.  It may also work at lower slew rates too, however performance would continue to degrade.

    We'll follow up with any other more detailed info.

    73,

    Timothy

  • 0 in reply to Timothy T
    TI__Mastermind 28550 points

    OSCin can be used with sine wave.

    If DC coupled then voltage above or below approximately 1.1 to 1.2 V will cause the output to switch.  There is no hysteresis.

    If AC coupled, then the input will self bias to approximately 1.1 to 1.2 V.  The AC coupled sine wave will result in voltages higher/lower than the 1.1 to 1.2 V threshold resulting in switching on the buffer output.

    73,

    Timothy