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. I2S 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%/±10C of rated
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