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CD74HC4046A or CD74ACT297 PLL issue

Other Parts Discussed in Thread: CD74HC4046A, CD74ACT297

Hi All:

Our customer asked me 2 questions as below with our PLL solution (CD74HC4046A or CD74ACT297).

1.       When temperature is changing under datasheet spec., whether the PLL frequency will be change or not?

Couldn’t it t be lucked again? Or frequency offset?

2.       When VCC vibration, how much will it impact the output frequency?