SLAA897 June   2019 MSP430FR2353 , MSP430FR2355

 

  1.   MSP430’s Analog Combo Enables True Single-Chip Pulse Oximeter Designs
    1.     Trademarks
    2. 1 Introduction
    3. 2 Proposed Single-Chip Design
      1. 2.1 Using SAC to Generate the LED Drive
      2. 2.2 Using SAC as TIA and Gain Stage
      3. 2.3 Power Management
    4. 3 Key Benefits
    5. 4 Summary
    6. 5 References

3 Key Benefits

  • Reduction in solution size: The MSP430FR235x comes in a small 6 x 6 mm VQFN40 and 4 x 4 mm VQFN32 package. It integrates four SACs (configurable signal chain), temperature sensor, precise voltage reference, and internal clock oscillators. Overall, it eliminates the use of multiple external components.
  • Ease of fabrication and assembly of printed circuit board (PCB) due to high integration. With the rich internal connection, the pin usage amount can be saved and external connections will be simpler.
  • Improved software infrastructure: Internal Read Only Memory (ROM) library can help save code size and power consumption. It can also help designers with their implementation of algorithms.