AWR1243: Long time chip stability

CDC

Part Number: AWR1243

Hi all,

we are studying the AWR1243 chips to verify the feasibility of a synthetic array with AWR1243 in cascading configuration.

In our analysis we are interested for the long time chip stability… then, has anyone taken acquisitions for long period (more than 10 seconds, which is the limit of Radar Studio + HSDC + TWS1400) and tested the Phase Stability and Amplitude Stability on Rx and Tx?

For example tests in controlled environmental conditions and with a reference target (such as a corner reflector) at a fixed distance.

In other words, do you have any characterization of phase and amplitude variations vs thermal and/or vs time for long-period analysis?

Thanks in advance.

over 7 years ago

0 Raghunandan Kamath over 7 years ago

TI__Mastermind 22155 points

Hello ,
I will let the team know and check if we can share the data with you.

-Raghu

0 Vivek Dham over 7 years ago in reply to Raghunandan Kamath

TI__Guru 58035 points

Hello CDC,
We have tested the phase and amplitude stability across long periods and across complete temperature range (-40 to 125 deg C). The worst phase mismatch variation we see is within 5deg and amplitude mismatch variation within 0.5dB.

regards,
Vivek

0 CDC over 7 years ago in reply to Vivek Dham

Prodigy 145 points

Hi Vivek,

Thank you for the reply,
Could you tell me some details about your test? like a trend of the phase change vs. temperature for a long period of data acquisition.

Thank a lot,

0 Vivek Dham over 7 years ago in reply to CDC

TI__Guru 58035 points

Hello CDC,
Let me check if I can share the data. By the way the above mentioned phase and amplitude mismatch is for a single chip. We do not have data yet on the multi chip mismatch.

Regards,
Vivek