方案优点:左右声道和MIC信号线上放ESD二极管保护后级芯片,再根据情况增加磁珠滤出杂讯,可以选择3.3V或5V ESD 二极管,可以保证信号完整性的同时,通过静电测试。 满足:IEC61000-4-2,接触放电 30kV,空气放电30kV,ISO10605-2等级4
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TL431ACLPR | Texas Instruments | |
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MC33074DR2G | onsemi |
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ESR03EZPJ151 | ROHM Semiconductor | |
TPS63050YFFR | Texas Instruments | |
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STM32F429IGT6 | STMicroelectronics |
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