Audio quality of speaker and TFA9879

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Audio quality of speaker and TFA9879

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gabrielgoldstei
Contributor I

We are using a TFA9879 with a CUI CVS-1508

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We are having many audio quality problems.  When the TFA is connected to a much larger speaker, it all sounds fine.  We need to turn the volume way down to hear intelligible audio out of this speaker.  

Questions:

1. Is there any speaker specific tweaking that should be done to match the amp to the speaker (i2c regs)?

2. Where is that fancy software and eval kit shown here?  ttp://www.nxp.com/video/digital-in-mono-class-d-audio-amplifier-with-feedback-loop-for-low-power-applications:MONO-CLASS-D-AUDIO-AMPLIFIER

Thanks,

Gabriel

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reyes
NXP TechSupport
NXP TechSupport

Hi Gabriel,

There is no specific I2C commands needed to match the amp with speaker.

 

  • What audio quality problems is the customer having? Clipping? Audio holes?
  • What is the speaker impedance?
  • What output power is targeted?
  • What I2C settings are used to initialize the TFA9879?
  • What battery voltage is used and what is the maximum current that the supply can deliver?


Have a great day,
Jose

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