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RT8980H 是 USB-C 型介面音訊信號切換開關，可支援移動設備實現與頭戴式類比音訊裝置的連接。RT8980H 為 USB-C 型埠提供了 USB 2.0 資料信號（DP，DN）、SBU 信號、類比音訊左右聲道和麥克風信號之間的切換通道，同時對 DP/DN 端子和 SBU 端子提供了過壓保護功能。
電源電壓範圍：2.7V~5.5V
各端子最高耐壓：SBU1/2 及 GSBU1/2 為 24V；DPR/DPL 為 20V
高速 USB 信號開關導通阻抗：3Ω
音訊信號開關導通阻抗：1Ω
負壓軌電壓範圍：-3V~3V
THD + N = -110dB（1VRMS, f = 20Hz ~ 20kHz, 32Ω 負載）
支援 OMTP 和 CTIA 標準的引腳佈置
支援音訊檢測的地回路切換
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