SLAAED0 March   2024 TAS2764 , TAS2780 , TAS2781

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Measurement Methodology
  6. 3 Introduction to Noise-gate and Pop in Class-D Amplifiers
  7. 4 Causes of Pop in TAS27xx family of Class-D Amplifiers
  8. 5 Click and Pop Using TAS27xx
  9. 6 Click and Pop Measurement Technique Using AP v6.0. 2
    1. 6.1  Measurement Setup
    2. 6.2  Filter Settings
    3. 6.3  Data Capture Settings
    4. 6.4  Auto Range Settings for Pop Measurement
    5. 6.5  ASI or I2S Configurations for Pop Measurement
    6. 6.6  APx Sound Level Meter Utility
    7. 6.7  Data Acquisition
    8. 6.8  Interpreting Click and Pop Waveforms
    9. 6.9  Post Processing of AP Waveforms
    10. 6.10 A-Weighted Click and Pop Numbers
    11. 6.11 Exporting the A-Weighted Numbers
  10. 7 Noise-Gate Pop and Measurement Technique Using APx
  11. 8 Configuring TAS2764 for Improved Click and Pop Noise Performance
    1. 8.1 Explanation
  12. 9 Summary
  13. 10References

8 Configuring TAS2764 for Improved Click and Pop Noise Performance

This section details the best device configurations required to reduce pop noise on TAS2764. In TAS2764, to optimize device click and pop performance, the recommendation is to force the device into idle channel mode before shutdown and exit out of the same prior to re-start.

The additional I2C configurations required for the same are as follows:

  • w 70 00 fd
  • w 70 0d 0d
  • w 70 64 04 #force device into idle channel mode
  • w 70 00 00 #page 0
  • w 70 02 02 #software shutdown
  • w 70 00 fd
  • w 70 0d 0d
  • w 70 64 00 #device exits from idle channel mode