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RT8980H 是 USB-C 型接口音频信号切换开关，可支持移动设备实现与头戴式模拟音频装置的连接。RT8980H 为 USB-C 型端口提供了 USB 2.0 数据信号（DP，DN）、SBU 信号、模拟音频左右声道和麦克风信号之间的切换通道，同时对 DP/DN 端子和 SBU 端子提供了过压保护功能。
电源电压范围：2.7V~5.5V
各端子最高耐压：SBU1/2 及 GSBU1/2 为 24V；DPR/DPL 为 20V
高速 USB 信号开关导通阻抗：3Ω
音频信号开关导通阻抗：1Ω
负压轨电压范围：-3V~3V
THD + N = -110dB（1VRMS, f = 20Hz ~ 20kHz, 32Ω 负载）
支持 OMTP 和 CTIA 标准的引脚布置
支持音频检测的地回路切换
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