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Re: about 倍頻
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版主
 
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1. 10MHz + 4 PLL 的EMC會較佳
2. 只要不超過最大工作頻率範圍都可以的，只是供頻率越高，需考慮周邊是否跟的上，及I/O的雜散電容所影引起的 Delay。
發表於: 2007/4/23 9:55
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about 倍頻
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資深會員
 
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請問
使用20Mhz 外頻和 使用10Mhz 外頻+PLL4倍頻 1. 在EMC上何著較佳 2. 對PIC本身的穩定性上有無差異(也就是PIC的頻率越低 是否會相對較穩定)
發表於: 2007/4/20 14:51
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