[問題] 請問crystal osc的問題(有圖)
我用74hc86當inverter做的crystal oscillator
但波型怪怪的,電路如第二張圖
http://imgur.com/sERtPo0,MIuGAQS
用圖上的布局插在麵包板上
pin 8和A點間有留一排+接地
示波器是20MHz的CRT
看起來inverter有點超出linear range?
謝謝大家~
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