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RT9125H 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 4Ω BTL (Bridge Tied Load) 扬声器负载提供 2x50W 输出。它可提供超过 94% 的功率效率，并免除散热片需求。内建保护电路可提供过温、过电流、过压、DC 与欠压保护，并回报错误状态。RT9125H 是一款 I<sup>2</sup>S 元件，可从外部来源接收所有时脉。完全可程式化的资料路径可将这些通道路由至内部扬声器驱动器。RT9125H 具备三频带 DRC (Dynamic Range Compression) 与弹性多频带 biquads，可用于防削波、功率限制与扬声器等化。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。
RT9125H 电路图
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<div class="spec-list"><ul class="lv1"><li>Flexible Power Supply Range - PVDD from 4.5V to 26.4V - DVDD and I/O: 1.8V or 3.3V </li><li>Support Wide Range Audio Format - Bit Resolution up to 32 Bits - Support TDM (Time-Division Multiplexing) up to 32 Bits - Sampling Frequency from 8kHz to 96kHz </li><li>Excellent Audio Performance - 1x100W PBTL Mode at 2Ω at 23V, THD+N = 1% - 2x50W BTL Mode at 4Ω at 23V, THD+N = 1% - SNR ≥ 110dB - Efficiency ≥ 94% </li><li>Built-In Programmable DSP (Digital Signal Processor) Function - 36 Programmable Biquads for Speaker Equalization - Programmable Coefficients for DRC Filters and Supporting Multi-Compression Ratios - Programmable 128-Tap FIR </li><li>Excellent Self-Protection - UVLO, OVP, OCP, Thermal Foldback, OTP and DCP - Built-In DC Blocking Filters </li><li>Filter-Less Application </li><li>64 Pin LQFP Package with the Exposed Thermal Pad </li></ul></div>
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RT9125H 订购信息
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RT9125H
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<div class="spec-list"><ul class="lv1"><li>Bluetooth and WiFi Speakers </li><li>Subwoofers </li><li>Bookshelf Stereo Systems </li><li>Professional And Public Address (PA) Speakers </li><li>Active Crossover and Two-Way Speakers </li></ul></div>
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