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RT5512B Datasheet Audio Amplifier

Manufacturer: Richtek

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General Description

The RT5512B is a boosted class-D amplifier with V/I sensing.

A built-in DC-DC step-up converter is used to provide efficient power for class-D amplifier with multi-level class-H operation.

The digital audio interface supports I2S, left-justified, right-justified and TDM format for audio in with a data out used for chip information like voltage sense and current sense, which are able to be monitored via DATAO pin through proper register setting.

Overview

RT5512B Audio Amplifier with IV Sense General.

Key Features

  • Class-D Speaker AMP.
  • 7W Output Power @ 12V, 8 load, THD+N < 1%.
  • 0 to 23dB Analog Gain.
  • 10V Output Noise @ 18dB Gain.
  • Add DRE to Reduce Output Noise.
  • Min. RL = 3.2, Max. RL = 38.
  • Boost Converter.
  • Adaptive Boost for Speaker, Boost from Battery Supply Up to Programmed Voltage, Max. 12.5V.
  • Switching Frequency 2MHz.
  • Accurate Input Current Limit.
  • Analog Part : Feedback ADC, Current Sense, Slope Compensation.
  • Digital Part : Voltage Loop a.

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