米6体育平台手机版

SPRZ342O January 2011 – April 2021 TMS320F28062 , TMS320F28062-Q1 , TMS320F28062F , TMS320F28062F-Q1 , TMS320F28063 , TMS320F28064 , TMS320F28065 , TMS320F28066 , TMS320F28066-Q1 , TMS320F28067 , TMS320F28067-Q1 , TMS320F28068F , TMS320F28068M , TMS320F28069 , TMS320F28069-Q1 , TMS320F28069F , TMS320F28069F-Q1 , TMS320F28069M , TMS320F28069M-Q1

Abstract
1Usage Notes and Advisories Matrices
1. 1.1 Usage Notes Matrix
2. 1.2 Advisories Matrix
2Nomenclature, Package Symbolization, and Revision Identification
3Silicon Revision B Usage Notes and Advisories
1. 3.1 Silicon Revision B Usage Notes
2. 3.2 Silicon Revision B Advisories
  1. Advisory
  2. Advisory
  3. Advisory
  4. Advisory
  5. Advisory
  6. Advisory
  7. Advisory
  8. Advisory
  9. Advisory
  10. Advisory
  11. Advisory
  12. Advisory
  13. Advisory
  14. Advisory
  15. Advisory
  16. Advisory
  17. Advisory
  18. Advisory
  19. Advisory
  20. Advisory
  21. Advisory
  22. Advisory
  23. Advisory
  24. Advisory
  25. Advisory
  26. Advisory
  27. Advisory
4Silicon Revision A Usage Notes and Advisories
1. 4.1 Silicon Revision A Usage Notes
2. 4.2 Silicon Revision A Advisories
5Silicon Revision 0 Usage Notes and Advisories
1. 5.1 Silicon Revision 0 Usage Notes
2. 5.2 Silicon Revision 0 Advisories
  1. Advisory
  2. Advisory
  3. Advisory
6Documentation Support
7Trademarks
8Revision History

Advisory

ADC: Temperature Sensor Minimum Sample Window Requirement

Revision(s) Affected

0, A, B

Details

If the minimum sample window is used (6 ADC clocks at 45 MHz, 155.56 ns), the result of a temperature sensor conversion can have a large error, making it unreliable for the system.

Workaround(s)

If double-sampling of the temperature sensor is used to avoid the corrupted first sample issue, the temperature sensor result is valid. Double-sampling is equivalent to giving the sample-and-hold circuit adequate time to charge.
In all other conditions, the sample-and-hold window used to sample the temperature sensor should not be less than 550 ns.