SLAA835B May   2018  – August 2018 MSP430FR2353 , MSP430FR2355

 

  1.   Smart Analog Combo Enables Tomorrow's MCU-Based Sensing and Measurement Applications
    1.     Trademarks
    2. 1 Introduction
    3. 2 Smart Analog Combo Applications
      1. 2.1 Smoke Detection
      2. 2.2 Gas or PM2.5 Detector
      3. 2.3 Blood Glucose Meter or Oximeter
      4. 2.4 Current-Loop Transmitter
      5. 2.5 Small Form-factor Pluggable (SFP) optical transceivers
      6. 2.6 Audio Applications
    4. 3 Conclusion
    5. 4 References
  2.   Revision History

2.6 Audio Applications

A 12-bit DAC followed by a bandpass filter drives an external audio amplifier, which can achieve a 10-bit effective number of bits (ENOB). 12-bit DAC leverages the cost and performance for many audio requirements, such as in a smoke detector. Figure 7 shows an audio application using one smart analog combo SAC-L3 configuration.

block-diagram-audio-application.pngFigure 7. Block Diagram of an Audio Application Using the MSP430 Smart Analog Combo