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Product Spec Banner
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The RT9125H is a high-efficiency, I<sup>2</sup>S-input, stereo channel audio power amplifier delivering 2x50W into 4Ω BTL (Bridge Tied Load) speaker loads. It can deliver over 94% power efficiency and eliminate the need for heat-sink.Built-in protection circuits provide over-temperature, overcurrent, overvoltage, DC, and undervoltage protections and report error status.The RT9125H is an I<sup>2</sup>S device receiving all clocks from external sources. A fully programmable data path routes these channels to the internal speaker drivers.The RT9125H features three band DRC (Dynamic Range Compression) and flexible multi-band biquads for anti-clipping, power limiting, and speaker equalization.The recommended junction temperature range is -40°C to 150°C, and the ambient temperature range is -40°C to 85°C
RT9125H Typical Circuit
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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 Ordering Information
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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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