SLAAEI4 August   2024 TAC5111-Q1 , TAC5212-Q1 , TAC5311-Q1 , TAC5312-Q1 , TAC5411-Q1 , TAC5412-Q1 , TAD5212-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Signal Processing Chain
  6. 3Distortion Limiter
    1. 3.1 Distortion Limiter Parameters
      1. 3.1.1 Threshold Maximum
      2. 3.1.2 Threshold Minimum
      3. 3.1.3 Inflection Point
      4. 3.1.4 Slope
      5. 3.1.5 Attack Rate
      6. 3.1.6 Release Rate
      7. 3.1.7 Hold Counter
    2. 3.2 Limiter Response
  7. 4Brown-Out Protection
    1. 4.1 Brown-Out Protection Parameters
      1. 4.1.1 Critical Level
      2. 4.1.2 Gain Level
      3. 4.1.3 Attack Rate
      4. 4.1.4 Release Rate
      5. 4.1.5 Hold Counter
    2. 4.2 Brown-Out Protection Response
  8. 5Thermal Foldback
    1. 5.1 Thermal Foldback Parameters
      1. 5.1.1 Temperature Threshold
      2. 5.1.2 Maximum Attenuation Threshold
      3. 5.1.3 Slope
      4. 5.1.4 Attack Coefficient
      5. 5.1.5 Release Coefficient
      6. 5.1.6 Hold Counter
        1. 5.1.6.1 Thermal Foldback Response
  9. 6Example
  10. 7Summary
  11. 8References

3.1 Distortion Limiter Parameters

Table 3-1 shows the parameters of the Distortion Limiter algorithm. The parameters reside in the 32-bit-wide coefficient memory (page 25 registers) of the device.

Table 3-1 List of Distortion Limiter Parameters
Distortion Limiter ParameterFunction and Description
Threshold Maximum (dB)The maximum peak output signal level, relative to full scale output voltage
Threshold Minimum (dB)The minimum peak output signal the Distortion Limiter attenuates to
Inflection Point (V)The battery level where the output peak begins to reduce below the threshold maximum
Slope (V/V)The rate of output peak decrease from the threshold maximum
Attack Rate (dB/step)The step rate response when the Distortion Limiter triggers a gain decrease
Release Rate (dB/step)The step rate response when the Distortion Limiter triggers a gain increase
Hold Counter (ms)The amount of time taken, following a change in VBAT, before the Distortion Limiter adjusts the output signal level