AD9434: Error in datasheet CHIP_GRADE register bit settings for 500MSPS speed grade option

Document created by analog-archivist Employee on Feb 23, 2016Last modified by analog-archivist Employee on Feb 23, 2016
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Are there any issues with the reading of the speed grade (CHIP_GRADE register
02) on AD9434? The speed grade options provided in the datasheet (table 13,
page 25) are:

00=500 MSPS
01= 370 MSPS

But I am reading  “10” from address 02 (CHIP_GRADE) and I am expecting
“01” (370 MSPS option).
It does not look like I have any SPI reading issues as I am able to read the
CHIP_ID register correctly.


The CHIP_GRADE is incorrectly documented on the datasheet. The correct speed
grade options for address 02 are:

10= 500 MSPS
01= 370 MSPS

The corrected table is attached, this will be added to the datasheet at the
next datasheet update.
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