DRY以该设备时钟频率的1/2运行,因此您的250MHz DRY是正确的,采样数据在DRY信号的上升沿和下降沿都应该是正确的。
750MHz信号是预期的,因为该信号是方波,并且方波的傅里叶表示仅包含奇次谐波,理想情况下,可以在方形上升沿/下降沿上实现最快的转换。
谢谢
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Other Parts Discussed in Thread: MSP430F6779 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。 https://e2e.ti.com/support/microcontrollers/msp-low-power-microcontrollers-group/msp430/f/msp-low-power-microcontroller-forum/1558475/msp430f6779-24…
Hi,
They are similar specs, which is why the numbers are so close, but we measure them differently.
SNR is measured by grounding the ADC inputs to 0. The resulting digital output from the ADC will be the effective noise floor of the ADC. SNR by definition…