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RTQ9124DL-QA 是一款超低输出噪声、高效率、单声道 D 类音频功率放大器，可在 14.4V 供电电压下，以 1% THD+N 向 4Ω 负载提供 10W 输出。它可达到超过 80% 的功率效率，输出开关频率高达 2.1MHz，可在极小 PCB 尺寸中实现成本优化解决方案。RTQ9124DL-QA 可通过 I<sup>2</sup>C 总线接口完整设置，并包含专为车载应用设计的完整诊断阵列。在音频播放期间，可通过输出电流检测监测状态，并通过 I<sup>2</sup>S 或 TDM 将测量值以极低延迟回报至主处理器。内置防爆音功能可在所有情境下降低扬声器爆音噪声。此外，内置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。RTQ9124DL-QA 是一款 3 线式器件，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钟。它支持 8kHz 至 96kHz 的宽输入采样率。RTQ9124DL-QA 适用于各种车载音频应用，包括车载通信与 e-call 系统。RTQ9124DL-QA 采用 WET-VQFN-32L 5x5 封装。建议结温范围为 −40°C 至 150°C，环境温度范围为 −40°C 至 125°C。
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<li class="mv5"> AEC-Q100 Qualified<br /> </li><li class="mv5"> I<sup>2</sup>S and TDM Input (up to 16CH TDM)<br /> </li><li class="mv5"> 1x10W, THD+N = 1%, 4Ω, 14.4V<br /> </li><li class="mv5"> THD+N is 0.05%<br /> </li><li class="mv5"> SNR up to 110dB<br /> </li><li class="mv5"> Ultra-Low Noise = 18μV<br /> </li><li class="mv5"> Switching Frequency up to 2.1MHz<br /> </li><li class="mv5"> Sampling Frequency from 8kHz to 96kHz<br /> </li><li class="mv5"> I<sup>2</sup>C Control with 4 Address Options<br /> </li><li class="mv5"> Built-In Anti-Pop Function <br /> </li><li class="mv5"> Built-In Thermal Fold-Back and Clip Detection<br /> </li><li class="mv5"> Ultra-Low Quiescent Current Mode (ULQM)<br /> </li><li class="mv5"> AC-DC Load Diagnostics<br /> </li><li class="mv5"> Real Time Load Diagnostics<br /> </li><li class="mv5"> Temperature and Voltage Sensing via I2C<br /> </li><li class="mv5"> Protection Features<br /> ► Output Short-Circuit<br /> ► Overvoltage and Undervoltage<br /> ► Overcurrent Warning<br /> ► Overcurrent<br /> ► Over-Temperature<br /> ► DC Detection <br /> ► 40V Load Dump<br /> </li><li class="mv5"> VQFN-32L Wettable Flanks <br /> </li><li class="mv5"> Ambient Temperature Range: -40°C to 125°C<br /> </li><li class="mv5"> Junction Temperature Range: -40°C to 150°C</li>
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<li class="mv5"> e-Call Systems<br /> </li><li class="mv5"> Telematics</li>
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