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Forum Post: LM98725 PLL Unlock

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Dear. experts I'm using LM98725 on MFP scanner. I have few question about it. 1. When I start MFP and LM98725 , sometimes the PLL don't get locked. But if I restart MFP, it works well. Have you ever had any issue about pll unlock? If you had, how did you solve this problem? - INCLK is not stopped, when SoC is writting value of register by SPI. 2. On datasheet page 6, 6.1 absolute maximum ratings, the soldering temperature is max. 235℃. If package temperature of AFE is exceed 235℃ during reflowing, is LM98725 possible to be damaged? I did ABA test, it looks like AFE has been damage, sometimes the PLL don't get locked. Sorry about my bad English, please reply about my question. Best Regard.

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