F
frank
- Jan 1, 1970
- 0
Hello,
I was recently awarded the task of re-designing an existing 50MHz
oscillator. One the parameters I was asked to reduce is the wake-up.
It currently stamds at ~5ms. Does anyone know of any tricks to speed
up the wake-up time of a pierce archicture oscillator ? The way I see
it, is, that the equivalent negative resistance of the oscillator
circuit as seen from the xtal, has to be greatly increased. I
calculated it to be in the neighborhood of -50ohms (does that sound
about rigth? ); is there any way to increase it to, say about -2kohms
?
-Frank
I was recently awarded the task of re-designing an existing 50MHz
oscillator. One the parameters I was asked to reduce is the wake-up.
It currently stamds at ~5ms. Does anyone know of any tricks to speed
up the wake-up time of a pierce archicture oscillator ? The way I see
it, is, that the equivalent negative resistance of the oscillator
circuit as seen from the xtal, has to be greatly increased. I
calculated it to be in the neighborhood of -50ohms (does that sound
about rigth? ); is there any way to increase it to, say about -2kohms
?
-Frank