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AURIX™ MCU: Can DSADC interface with an external delta-sigma ADC modulator? – KBA234959

AURIX™ MCU: Can DSADC interface with an external delta-sigma ADC modulator? – KBA234959

BinduPriya_G
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AURIX™ MCU: Can DSADC interface with an external delta-sigma ADC modulator? – KBA234959

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On the AURIX™ TC2XX devices, the modulator and demodulator are used together; therefore, delta-sigma analog-to-digital converter (DSADC) does not interface with an external delta-sigma ADC modulator directly.

BinduPriya_G_1-1658731064191.png

 

Figure 1 Delta-sigma analog-to-digital converter

However, on AURIX™ TC3XX devices, demodulator can be used separately, so enhanced DSADC can interface with an external delta-sigma modulator to get the data stream.

BinduPriya_G_0-1658730969653.png

 

 Figure 2 Enhanced delta-sigma analog-to-digital converter

For more details, please see the following sections of the User’s manual:

  • For AURIX™ TC2xx series: “Delta-Sigma Analog-to-Digital Converter (DSADC)” section
  • For AURIX™ TC3xx series: “Enhanced Delta-Sigma Analog-to-Digital Converter (EDSADC)” section

Note:  This KBA applies to the following series of AURIX™ MCUs:

  • AURIX™ TC2xx series
  • AURIX™ TC3xx series
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