EVAL_AUDIO_MA12070

综述

Evaluation board - audio board using highly power efficient analog-input multilevel MERUS™ class D amplifier IC MA12070

The audio evaluation kit contains all hardware and software elements that are needed to evaluate the highly power efficient MERUS™ analog input multilevel class D amplifier IC 2x80 W (MA12070). The IC is specifically targeted for high performance filter-less and heatsink-free audio applications.

  • Configurable number of audio channels: 2xBTL or 4xSE or 1xBTL+2xSE
  • Audio input format: analog
  • Recommended supply voltage (PVDD) range: 18 V to 26 V max.
  • Output noise level: <60 µVrms (AW)
  • Dynamic range: >109 dB
  • Idle power consumption at 26 VPVDD: <350 mW

Summary of features

  • A configurable, single-voltage-supply amplifier board
  • A PC programming interface board (with USB connection)
  • Coils to be used in series with standard resistive loads (to mimic speaker impedances) for more accurate efficiency measurements
  • A full set of documentation, a Windows based graphical user interface for PC installation and 1:1 measurement data for this specific amplifier board (all provided on the included memory stick)

Summary of benefits

  • The evaluation kit provides an easy to use test and validation setup for the MA12070 multilevel amplifier IC
  • Allows users to experience the unique sound quality of a multilevel class D amplifier with an analog input and speaker setup of choice
  • Facilitates accurate power efficiency and audio performance  measurements using standard audio analyzer hardware
  • Includes pre-recorded measurement data to help the user validate measurements from own test setup

List of components

  • Analog-input multilevel class D amplifier IC (MA12070)

Target applications

  • Portable audio – battery operated speakers, smart speaker, on-the-go Bluetooth speakers, docking speakers, boom boxes, wearable speakers
  • Home audio – multi-room systems, home hubs, televisions, soundbars, home theater systems, TVs
  • Voice controlled audio
  • Pro audio – PoE audio systems and other demanding audio applications where it is essential to maximize dynamic range and audio performance while minimizing power dissipation and power loss
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