SWRZ098 April   2021 AWR6443

 

  1. 1Introduction
  2. 2Device Nomenclature
  3. 3Device Markings
  4. 4Usage Notes
    1. 4.1 MSS: SPI Speed in 3-Wire Mode Usage Note
  5. 5Advisory to Silicon Variant / Revision Map
  6. 6Known Design Exceptions to Functional Specifications
    1.     MSS#25
    2.     MSS#26
    3.     MSS#27
    4.     MSS#28
    5.     MSS#29
    6.     MSS#30
    7.     MSS#31
    8.     MSS#32
    9.     MSS#33
    10.     MSS#36
    11.     MSS#37B
    12.     MSS#38A
    13.     MSS#39
    14.     MSS#40
    15.     MSS#41
    16.     MSS#43A
    17.     MSS#44
    18.     MSS#45
    19.     ANA#11A
    20.     ANA#12A
    21.     ANA#13B
    22.     ANA#14
    23.     ANA#15A
    24.     ANA#16
    25.     ANA#17A
    26.     ANA#18B
    27.     ANA#19
    28.     ANA#20
    29.     ANA#21A
    30.     ANA#22A
    31.     ANA#27A
  7. 7Trademarks
  8. 8Revision History

ANA#14

Doppler Spurs Observed for Narrow Chirps

Revision(s) Affected:

AWR6443 ES2.0

Description:

There is a non-linearity of the synthesizer when crossing certain frequencies: 60.3-, 60.75-, 61.2-, 61.56-, 62.1-, 62.64-, 63-, and 63.45-GHz.

Implication: There will be a spur in the non-zero Doppler bin when the synthesizer crosses any of these frequencies during a chirp. The exact Doppler bin depends on the slope and ramp timings. The spur will be spread across multiple range bins.

Workaround(s):

Avoid narrow bandwidth ramps around frequencies with high-spur levels.