Questions about the AWR1843 receive subsystem

Hiroyuki Kanematu

Expert 2975 points

Other Parts Discussed in Thread: AWR1843, AWR1642

I have the following questions regarding the AWR1843 receive subsystem:

1. IQ modulation part
What is the role of IQ modulation in the area surrounded by the dotted line (1) in the figure?

2. Decimation
What is the role of the decimation of the dotted line (2) in the figure?

3. ADC Buffer
The AWR1843 has four receiver channels, but in what order does the ADC buffer store ADC data?

Maybe I'm missing information, could you please answer?

If you want to know more details, please refer to the following URL.
There is also a brief description in the Receive Subsystem in 6.3.1.3.

0 Ishita Kochar over 4 years ago

Hello User,

Please find my comments below :

1. Please refer to the following white paper for understanding the complex baseband architecture in mmWave devices :

2. You can read about decimation filter chain on the web, this is a common term used across widely.

3. You can refer to the following document for details on the raw ADC data storage :

Regards,

Ishita

0 Hiroyuki Kanematu over 4 years ago in reply to Ishita Kochar

Expert 2975 points

Hello, Mr. Ishita

Thank you for your kind commentary.

I will refer to it immediately.

0 Ishita Kochar over 4 years ago in reply to Hiroyuki Kanematu

Hello Mr. Kanematu,

Sure, let us know if you need any further clarifications.

Regards,

Ishita

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