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high frequency sine wave generator?

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nmtech999

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I am needing to generate a 250-500 kHz sine wave from a microcontroller. I am a mechanical engineer and not an EE so I'm not exactly sure of the correct way to approach this. Does anybody have any suggestions?
 

Hi,
How much V do you need & on what an Impedance?
I would make it with op amplifier_or you must make it w. micro?...
K.
 

i need to have about a 15 V peak to peak sine wave and im not sure about the impedance. I need to be able to create a burst or pulse signal which is why i was considering using a microcontroller or DSP to generate the signal and control. then just use amps to increase the voltage.
 

Hopla, what do you mean pls with burst & pulse signal exactly!?
Must be your sinus signal gated, or ha s to have an exact Nr of periods, than zero-or?
What kind of (uP)controlling do you wish to realize?
What about internal usable supply voltages_i.e.+/.15V?
K.
 

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