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Re: 振盪器起振延遲
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版主
 
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有可能是示波器探棒引起的，可以的話請先用5.5V 測試再將電壓將到3.0V測試震盪器輸出是否可以維持 0.8Vdd p-p，碳棒一定要用 10M ohm
發表於: 2007/1/16 11:10
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振盪器起振延遲
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高級會員
 
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請教...
我測量VCC與OSC1時，每次上電後.. 有時候起振會延遲1.5秒..有時又不會?.. 造成畫面每次開啟時間不同... 因為客戶滿care這個問題的... 目前電路... 4m晶體..使用pll4倍頻..旁路電容20p... 並接100k電阻... 有什麼辦法可以改善的??
發表於: 2007/1/10 17:33
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