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Comments on Profile Post by skem

  1. skem
    skem
    Maybe a cap? It seems to be just a FR issue.
    Jan 19, 2019
  2. JK47
    JK47
    Needs to come up to temperature to stabilize
    Jan 19, 2019
    Psalmanazar likes this.
  3. skem
    skem
    Exactly what is stabilizing? That /is/ the question. I’m looking for the EE explanation.
    Jan 19, 2019
    Syzygy likes this.
  4. famish99
    famish99
    Most likely the clocks since it's not oven controlled. Resistors do change with temperature but they probably heat up quickly enough.
    Jan 20, 2019
    Psalmanazar likes this.
  5. skem
    skem
    More thinking: if all the resistors in the R:2R have the same temp coefficient, nothing should change. If the rungs and the rails have different temp coefficients, then we would get harmonic distortion.

    As long as one clock is MCLK, shouldn’t the sound be slight out of tune but otherwise distortion free?
    Jan 20, 2019
  6. famish99
    famish99
    Average clock frequency isn't the problem as much as the jitter. I would say that within the chip the resistors can heat up unevenly. Tbh I'm pulling at straws myself, but the end result is hard to deny.
    Jan 20, 2019
    Psalmanazar and skem like this.