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Product Spec Banner
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RTQ9124DH-QA 是一款超低输出杂讯、高效率、单声道 D 类音讯功率放大器。它可达到超过 86% 的功率效率，输出切换频率高达 2.1MHz，可在极小 PCB 尺寸中实现成本最佳化解决方案。切换频率可设定于 AM 频段以上，以消除 AM 频段干扰并降低输出滤波器尺寸与成本；亦可设定于 AM 频段以下，以最佳化效率。RTQ9124DH-QA 可透过 I<sup>2</sup>C 汇流排介面完整设定，并包含专为车用应用设计的完整诊断阵列。内建防爆音功能可在所有情境下降低扬声器爆音杂讯。此外，内建保护电路可提供热折返、过温、过电流、过压与欠压保护，并回报错误状态。RTQ9124DH-QA 是一款 3 线式元件，可使用标准 I<sup>2</sup>S 与 TDM (Time-Division Multiplexing) 格式，从外部来源接收所有时脉。它支援 8kHz 至 192kHz 的宽输入取样率。RTQ9124DH-QA 适用于各种车用音讯应用，包括车载资通讯、e-call 系统与车辆声音警示系统 (AVAS)。RTQ9124DH-QA 采用 WET-VQFN-32L 5x5 封装。建议接面温度范围为 −40°C 至 150°C，环境温度范围为 −40°C 至 125°C。
RTQ9124DH-QA 电路图
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<div class="spec-list"><ul class="lv1"><li>AEC-Q100 Qualified - I<sup>2</sup>S and TDM Input (Up to 16CH TDM) </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 - Output Short-Circuit - Overvoltage and Undervoltage - Overcurrent Warning - Overcurrent - Over-Temperature - DC Detection - 40V Load Dump </li><li>VQFN-32L Wettable Flanks </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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RTQ9124DH-QA 订购信息
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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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