AWR1843: Reason why 1.4 V is not output from VOUT_14SYNTH

Hiroyuki Kanematu

Part Number: AWR1843

I tried powering the AWR1843 and the voltage coming out of VOUT_14SYNTH was 0.9 V.
What are the possible causes when this value is printed?

The wiring diagram is as follows.
I am inputting a voltage of 1.8 V. (The capacitor is also connected in the same way as AWR1843.)

over 2 years ago

0 Vivek Dham over 2 years ago

TI__Guru 58035 points

Hello Hiroyuki,

The VOUT_14SYNTH would be turned ON only after the RF frontend has been powered up by your application. Which application are you running on the AWR1843 device and has RF power been done in the application?

Regards,
Vivek

0 Hiroyuki Kanematu over 2 years ago in reply to Vivek Dham

Expert 2975 points

Hi, thanks for your reply.

Is the application that drives the RF front end prepared in the SDK, etc.?
We did not write the application because we wired as shipped.

Also in the application 'Which application are you running on the AWR1843 device and has RF power been done in the application?'
Are you saying that the application needs to set that?

0 Vivek Dham over 2 years ago in reply to Hiroyuki Kanematu

TI__Guru 58035 points

Hello ,

That is correct, the application needs to power up the RF front end. You can use the demo application in the SDK if that is compatible with your hardware.

Regards,

Vivek

0 Hiroyuki Kanematu over 2 years ago in reply to Vivek Dham

Expert 2975 points

OK, Thank you!

Sensors

Sensors forum

AWR1843: Reason why 1.4 V is not output from VOUT_14SYNTH