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Product Spec Banner
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RT9120E 是一款高效率、I<SUP>2</SUP>S 输入、立体声通道音讯功率放大器，可向 8Ω BTL 扬声器负载提供最大 2x30W 输出。它可在 2x20W 时提供超过 94% 的功率效率，免除散热片需求，并实作 CMH 模式以在小讯号时降低脉冲宽度，进而减少电感电流涟波并提升轻载效率。内建防爆音功能可在各种情境下降低扬声器的爆音杂讯。内建保护电路可提供过温、过电流、过压与欠压保护，并回报错误状态。RT9120E 是一款 3 线式元件，可从外部来源接收所有时脉，并支援标准 I<SUP>2</SUP>S、左对齐、右对齐或 TDM 格式。它可支援 8kHz 至 192kHz 的宽输入取样率。RT9120E 具备单频带 DRC、弹性输入混音器与功率削波功能。建议接面温度范围为 -40°C 至 150°C，环境温度范围为 -40°C 至 85°C。
RT9120E 电路图
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<div class="spec-list"><ul class="lv1"><li>CMH Mode for Lower Quiescent Current </li><li>Wide Input Supply Range: 4.5V to 26.4V </li><li>Support 1.8V and 3.3V I/O </li><li>Configurable 4 Different IC Slave Address </li><li>1x53W, 1.0 Mode (4Ω, 22V, THD + N = 1%) </li><li>2x30W, 2.0 Mode (8Ω, 24V, THD + N = 1%) </li><li>SNR Up to 113dB </li><li>THD + N is 0.03% at 1W </li><li>35μV Noise Floor </li><li>Efficiency Up to 94% at 2x20W for 6Ω </li><li>High Light Load Efficiency at CMH Mode </li><li>R<sub>DS(ON)</sub> Low to 90mΩ </li><li>Sampling Frequency from 8kHz to 192kHz </li><li>Support TDM Format for Multi-Channel </li><li>Built-In Anti-Pop Function </li><li>Programmable Coefficients for DRC Filters </li><li>Built-In DC Blocking Filters </li><li>Built-In Thermal Fold Back control </li><li>Protection Features: UVLO, OVP, OCP, OTP, and DCP </li><li>Inductor-Less Application </li><li>VQFN-32L Thermally-Enhanced Package </li></ul></div>
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RT9120E 订购信息
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RT9120E
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<div class="spec-list"><ul class="lv1"><li>Wireless, Bluetooth Speakers </li><li>Soundbars, Notebooks, PC Speakers </li><li>Home Audio </li></ul></div>
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