Converting square wave into buffered sine wave 45Mhz

Discussion in 'General Electronics Chat' started by Vindhyachal Takniki, Feb 6, 2019.

  1. Vindhyachal Takniki

    Thread Starter Member

    Nov 3, 2014
    466
    14
  2. AlbertHall

    AAC Fanatic!

    Jun 4, 2014
    8,060
    1,991
    What frequency range does the converter need to cover?
     
  3. Vindhyachal Takniki

    Thread Starter Member

    Nov 3, 2014
    466
    14
    45Mhz fixed
     
  4. danadak

    Distinguished Member

    Mar 10, 2018
    3,394
    765
  5. MisterBill2

    Distinguished Member

    Jan 23, 2018
    3,612
    709
    To get a pure sine wave the simple approach will be to use a high-Q 45 mHZ resonant tuned circuit, For even bettwe purity use two tuned circuits configured as a band-pass filter.
     
  6. AlbertHall

    AAC Fanatic!

    Jun 4, 2014
    8,060
    1,991
  7. MisterBill2

    Distinguished Member

    Jan 23, 2018
    3,612
    709
    The monolithic crystal filters would probably work but there would be an amplitude limit and above that limit would be distortion and then breakage. So it will all depend on the power level of the signal.

    One other thing is the application of the signal. For driving a mixer stage the square wave is better. IN fact, for mixers using FET switching the square wave is much better. So the application is important.
     
Loading...