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The RT9120M is a high efficiency, I<sup>2</sup>S-input, stereo channel audio power amplifier delivering 2x20W into 8Ω BTL speaker loads. It can deliver over 92% power efficiency and eliminate the need for heat-sink.<br /><br />The built-in anti-pop functions can reduce the speaker′s pop noise under all kind of scenarios. Built-in protection circuits can provide over-temperature, overcurrent, overvoltage, and undervoltage protections and report error status.<br /><br />The RT9120M is a 3-wired device receiving all clocks from external sources with standard I<sup>2</sup>S, Left-justified, Right-justified and TDM formats. It can support both master and slave mode with wide input sampling rate from 8kHz to 192kHz. A fully programmable data path routes these channels to the internal speaker drivers.<br /><br /> The RT9120M features one band DRC and flexible input mixer, and power limiting.
RT9120M Typical Circuit
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<div class="spec-list"><ul class="lv1"><li>Wide Input Supply Range: 4.5V to 26.4V </li><li>Support 1.8V, 3.3V I/O </li><li>I<sup>2</sup>S, LJ, RJ, TDM Digital Audio Interface </li><li>2x20W at into 8Ω BTL at 20V </li><li>2x9W at into 8Ω BTL at 12V </li><li>SNR Up to 108dB </li><li>THD + N is 0.03% at 1W </li><li>45μV Noise Floor </li><li>Efficiency Up to 92% at 2x10W for 8Ω </li><li>Sampling Frequency from 8kHz to 192kHz </li><li>Built-In Anti-Pop Function for BTL BD Modulations </li><li>Flexible Input Mixer </li><li>Programmable Coefficients for DRC Filters and Supporting Multi-Compression Ratios </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>Filter-Less Application </li><li>VQFN-32L Thermally-Enhanced Package </li><li>RoHS Compliant and Halogen Free </li></ul></div>
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RT9120M Ordering Information
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<div class="spec-list"><ul class="lv1"><li>LCD-TV </li><li>Monitors </li><li>Home Audio </li><li>Amusement Equipment </li><li>Electronic Music Equipment </li></ul></div>
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