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The RT9121 is a high efficiency, I<sup>2</sup>S-input, stereo channel audio power amplifier delivering 2x30W into 8Ω BTL speaker loads. It can deliver over 94% power efficiency and eliminate the need for heat-sink.<br /><br />Built-in protection circuits can provide over-temperature, overcurrent, overvoltage, DC and undervoltage protections and report error status.<br /><br />The RT9121 is an I<sup>2</sup>S device receiving all clocks from external sources. 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 RT9121 features three band DRC and flexible multi-band biquads for anti-clipping, power limiting, and speaker equalization.
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<li class="mv5"> Flexible Power Supply Range<br /> ► PVDD from 4.5V to 26.4V<br /> ► DVDD and I/O, 1.8V or 3.3V<br /> </li><li class="mv5"> Support Wide Range Audio Format<br /> ► Bit Resolution Up to 32 Bits<br /> ► Support TDM Up to 32 Bit<br /> ► Sampling Frequency from 8kHz to 192kHz<br /> </li><li class="mv5"> Excellent Audio Performance<br /> ► 2x30W at into 8Ω BTL at 24V<br /> ► SNR ≥ 110dB<br /> ► Efficiency ≥ 94%<br /> </li><li class="mv5"> Built-in Programmable DSP Function<br /> ► 40 Programmable Biquads for Speaker Equalization<br /> ► Programmable Coefficients for DRC Filters and Supporting Multi-Compression Ratios<br /> ► Programmable 256-taps FIR<br /> </li><li class="mv5"> Excellent Self-Protection<br /> ► UVLO, OVP, OCP, thermal foldback, OTP and DCP<br /> ► Built-In DC Blocking Filters<br /> </li><li class="mv5"> Filter-Less Application<br /> </li><li class="mv5"> Hifi-3 DSP Process, 160kB SRAM<br /> </li><li class="mv5"> Adjustable PWM frequency up to 1.5MHz <br /> </li><li class="mv5"> VQFN-48L Thermally-Enhanced Package<br /> </li><li class="mv5"> RoHS Compliant and Halogen Free</li>
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<li class="mv5"> LCD-TV<br /> </li><li class="mv5"> Monitors<br /> </li><li class="mv5"> Home Audio<br /> </li><li class="mv5"> Amusement Equipment<br /> </li><li class="mv5"> Electronic Music Equipment</li>
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