SLLA641 July   2024 TAA5212 , TAC5112 , TAC5212

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2ADC Front End Block Diagram
  6. 3Application Example
    1. 3.1 MIC 1: POM-2242P-C33-R Microphone
      1. 3.1.1 Test Case 1: Microphone Minimum Input Level
      2. 3.1.2 Test Case 2: Microphone Maximum Input Level
      3. 3.1.3 Test Case 3: Microphone Maximum Input Level with Gain
    2. 3.2 MIC 2: POM-2730L-HD-R Microphone
      1. 3.2.1 Test Case 1: Microphone Minimum Input Level
      2. 3.2.2 Test Case 2: Microphone Maximum Input Level
      3. 3.2.3 Test Case 3: Microphone Maximum Input Level with Gain
  7. 4Summary
  8. 5References

3.2 MIC 2: POM-2730L-HD-R Microphone

The data sheet parameter of this microphone is shown in Figure 3-11 with the respective sound to electrical signal level conversion. This microphone has better Sensitivity and SNR than the ECM, thus is a good microphone to test as well. The higher the sensitivity, the greater the electrical output the microphone can produce, though the AOP is the same as the ECM microphone.

POM-2730L-HD-R Sound to Electrical Signal LevelFigure 3-11 POM-2730L-HD-R Sound to Electrical Signal Level

From the conversion, the voltages are used and applied in the instrument input level of the test cases.