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UC3825, 频率降低后,起振不了

Other Parts Discussed in Thread: UC3825

各位TI工程师,你们好~

目前在使用UC3825, 需要定制300.K超声频率,调好工作45秒后,会出现起振不了的情况。之前也用过这颗,是在688K频率下,使用正常~

请问有什么相关建议吗?或者有其他推荐,最好是和UC3825 Pin2Pin的,感谢·~