[問題] 關於stability
請問一下
1.
high order sigma delta modulator 裡有好幾個integrator
overall phase shift 早就超過180 degree
為什麼還是穩定
2.
nested miller 需要檢查每個loop嗎
大的穩定loop包著小的不穩定loop, overall 應該還是穩定吧
thanks
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