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Product Spec Banner
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The RT5508 is a mono BTL class-D amplifier with cutting-edge speaker protection algorithm. Also, a built-in DC-DC step-up converter is used to provide efficient power for class-D amplifier. I<sup>2</sup>S interface supports two different audio sources while a pair of auxiliary DATAI/O is used for stereo mode or pass-through application. Chip information including gain, speaker protection output or current sense is able to be monitored via DATAO through proper register setting. Speaker protection provides mechanical / thermal protection with accuracy of 10%/±10°C of rated limit.</p>
RT5508 Typical Circuit
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<div class="spec-list"><ul class="lv1"><li>Class-D Speaker AMP <ul class="lv2"> <li></li><li>1.6W Output Power @ 5.3V, 8Ω Load, THD < 1% </li><li>0/3/6/9/12/15dB Boost Gain </li><li>20μV Output Noise @ 0dB Gain </li></ul> </li><li>Boost Converter <ul class="lv2"> <li></li><li>Adaptive Boost For Speaker, Boost from Battery Supply Up to Programmed Voltage, Max 5.3V </li><li>Power Modes : Adaptive Boost, Fixed Boost, Bypass Mode </li><li>Switching Frequency 2MHz, Maximum Output Current 1A </li><li>Support CCM / DCM Compensation, Feedback ADC </li><li>Digital Part : Voltage Loop in Boost Mode </li></ul> </li><li>Digital <ul class="lv2"> <li></li><li>Digital Audio Interface Support I<sup>2</sup>S, Left-Justified, Right-Justified </li><li>I<sup>2</sup>S Sampling Rate Support up to 48kHz, 24-bit </li><li>Digital Filter, Digital Volume, Multi-Band DRC </li><li>Speaker Protection </li><li>Speaker Amplitude Estimation Accuracy : Error < 10% </li><li>Bl Calibration Function </li><li>Temperature Sensing </li><li>Speaker Temperature Estimation Accuracy : Error < ±10°C </li></ul> </li></ul></div>
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RT5508 Ordering Information
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<div class="spec-list"><ul class="lv1"><li>Smart Phone </li><li>Tablet </li></ul></div>
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