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Product Spec Banner
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RTQ9124 是一款超低輸出雜訊、高效率、單聲道 D 類音訊功率放大器。它可達到超過 85.5% 的功率效率，輸出切換頻率高達 2.1MHz，可在極小 PCB 尺寸中實現成本最佳化解決方案。切換頻率可設定於 AM 頻段以上，以消除 AM 頻段干擾並降低輸出濾波器尺寸與成本；亦可設定於 AM 頻段以下，以最佳化效率。RTQ9124 可透過 I<sup>2</sup>C 匯流排介面完整設定，並包含專為車用應用設計的完整診斷陣列。內建防爆音功能可在所有情境下降低揚聲器爆音雜訊。此外，內建保護電路可提供熱折返、過溫、過電流、過壓與欠壓保護，並回報錯誤狀態。RTQ9124 是一款 3 線式元件，可使用標準 I<sup>2</sup>S 與 TDM (Time-Division Multiplexing) 格式，從外部來源接收所有時脈。它支援 8kHz 至 192kHz 的寬輸入取樣率。RTQ9124 適用於各種車用音訊應用，包括車載資通訊與 e-call 系統。RTQ9124 採用 TSSOP-28 (Exposed Pad) 封裝。建議接面溫度範圍為 −40°C 至 150°C，環境溫度範圍為 −40°C 至 125°C。
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<div class="spec-list"><ul class="lv1"><li>AEC-Q100 Qualified </li><li>I<sup>2</sup>S and TDM Input (Up to 16CH TDM) </li><li>1x27W, THD+N = 10%, 4Ω, 14.4V </li><li>THD+N is 0.05% </li><li>SNR up to 115dB </li><li>Ultra-Low Noise = 18μV </li><li>Switching Frequency up to 2.1MHz </li><li>Sampling Frequency from 8kHz to 192kHz </li><li>I<sup>2</sup>C Control with 4 Address Options </li><li>Built-In Anti-Pop Function </li><li>Built-In Thermal Fold-Back and Clip Detection </li><li>Ultra-Low Quiescent Mode (ULQM) </li><li>AC-DC Load Diagnostics </li><li>Real Time Load Diagnostics </li><li>Temperature and Voltage Sensing via I<sup>2</sup>C </li><li>Protection Features <ul class="lv2"> <li></li><li>Output Short-Circuit </li><li>Overvoltage and Undervoltage </li><li>Overcurrent Warning </li><li>Overcurrent </li><li>Over-Temperature </li><li>DC Detection </li><li>40V Load Dump </li></ul> </li><li>Ambient Temperature Range: -40°C to 125°C </li><li>Junction Temperature Range: -40°C to 150°C </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>e-Call Systems </li><li>Telematics </li><li>AVAS </li></ul></div>
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