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SRAM+SD卡+USB三高速接口共存:STM32 PCB设计的信号隔离与电源分配策略
[导读]嵌入式系统设计,同时集成SRAM、SD卡和USB接口已成为高性能数据采集与存储设备的常见需求。然而,这三个高速接口的共存对PCB设计提出了严苛挑战——信号完整性、电源噪声抑制和电磁兼容性(EMC)问题相互交织,稍有不慎便会导致系统崩溃。本文基于 ...
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