SWRZ102C November   2021  – December 2024 AWR2944

PRODUCTION DATA  

  1.   1
  2. 1Introduction
  3. 2Device Nomenclature
  4. 3Device Markings
  5. 4Advisory to Silicon Variant / Revision Map
  6. 5Known Design Exceptions to Functional Specifications
    1.     MSS#25
    2.     MSS#27
    3.     MSS#28
    4.     MSS#29
    5.     MSS#30
    6.     MSS#33
    7.     MSS#40
    8. 5.1  MSS#46
    9. 5.2  MSS#48
    10. 5.3  MSS#49
    11. 5.4  MSS#52
    12. 5.5  MSS#53
    13. 5.6  MSS#54
    14. 5.7  MSS#55
    15. 5.8  MSS#56
    16. 5.9  MSS#57
    17. 5.10 MSS#58
    18. 5.11 MSS#59
    19. 5.12 MSS#60
    20. 5.13 MSS#61
    21. 5.14 MSS#62
    22.     MSS#66
    23. 5.15 MSS#67
    24. 5.16 ANA#12A
    25.     ANA#32A
    26.     ANA#33A
    27.     ANA#34A
    28.     ANA#35A
    29.     ANA#36
    30.     ANA#37A
    31.     ANA#38A
    32.     ANA#39
    33.     ANA#43
    34.     ANA#44
    35.     ANA#45
    36.     ANA#46
    37.     ANA#47
  7.   Trademarks
  8.   Revision History

ANA#44

In 3.3V IO mode, back power is observed on the 1.8V rail from 3.3V rail

Revision(s) Affected:

AWR294x ES2.0

Description:

When the 3.3V power rail comes up and 1.8V has not been supplied yet, there is a voltage rise seen on the 1.8V VIOIN rail due to the leakage path within the IO cell.

Workaround(s):

It is recommended to use the following workarounds:

  1. Use appropriate Supply Sequencing: Supply 1.8V first and then 3.3V.
  2. In case the PMIC fails to powerup due to sensing an existing voltage at its output, this voltage detection scheme in the PMIC should be disabled.