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The Wave Form of STM32F429 osc_out pin have a DC level, Is it correct?

Question asked by li.guocheng on Apr 27, 2014
Latest reply on Apr 29, 2014 by li.guocheng
The picture is the wave form of STM32F429 osc_out pin,The low level is not 0V, but is 1.24V,  Why the sine wave's value of peak to peak is 1.04V. Is it correct? 

ddd.JPG

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