AWR2243: Several problems with the performance of the launch channel

Gary Lu

Intellectual 1660 points

Part Number: AWR2243
Other Parts Discussed in Thread: , DCA1000EVM

Hello, there are several questions about the performance of the AWR2243 chip, and I hope to get answers:

1. What configuration is used to open and close the transmit channel of the chip? Which document do I need to refer to?

2. How long does it take to switch the launch channel?

3. How big is the emission shutdown leakage of this chip?

4. What is the transmit channel isolation and receive channel isolation of the chip?

Thanks! expect an answer

Regards，

Gary

over 2 years ago

0 aozer over 2 years ago

TI__Mastermind 30815 points

Hello,

1. For basics on using the EVM, I would recommend to start with the mmWave Studio users guide.

https://dr-download.ti.com/software-development/ide-configuration-compiler-or-debugger/MD-NeRAa3SNis/03.00.00.14/mmwave_studio_user_guide.pdf

You can download mmWave Studio for AWR2243BOOST below.

https://www.ti.com/tool/download/MMWAVE-STUDIO-2G/03.00.00.14

You can also refer to the DCA1000 training video for steps to do a basic raw data capture using mmWave Studio and the DCA1000EVM.

https://www.ti.com/video/5827389052001

If you are interested specifically in the API needed to enable/disable chirping, you can refer to the Interface Control Document, which has all of the mmwavelink APIs. The API specifically that is used to start/stop frame transmission is the AWR_FRAMESTARTSTOP_CONF_SB API. However, this API will not do anything unless you have follow the correct API sequence as documented on page 368 (Section 6 API Programming Sequence) of the interface control document.

https://dr-download.ti.com/software-development/firmware/MD-074SwD074J/02.02.03.01/mmWave-Radar-Interface-Control.pdf

https://www.ti.com/tool/download/MMWAVE-DFP-2G/02.02.03.01

2. I am not sure what you mean by this. Please clarify.

3. Again, the question is not clear. Please clarify.

4. From the chip perspective, the Rx-Rx isolation is typically better than 40dB, Tx- Rx isolation is better than 30dB and Tx-Tx isolation is better than 25dB. System level isolation would also be dependent on your antenna design.

Regards,

Adrian

Sensors

Sensors forum

AWR2243: Several problems with the performance of the launch channel