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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| BP3621 | ROHM Semiconductor | |
| BU33JA2MNVX-CTL | ROHM Semiconductor | |
| IPZ40N04S5L4R8ATMA1 | Infineon Technologies | |
| STM32F429IGT6 | STMicroelectronics | |
| TPS63050YFFR | Texas Instruments | |
| ESR03EZPJ151 | ROHM Semiconductor |
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