IWR1642: Response curve of HPF in analog IF

Hello Chris,
There are two HPFs and the corner frequencies are programmed by the user (minimum being 175Khz and 350Khz. Both these filters have a 20dB/decade roll off.

regard,
Vivek

Vivek,

Do you have related curve for each HPF?

How about the curve with two HPFs enabled?

Thanks,

Joes,

What's the meaning of x-plot and y-plot in the figure you shared?

What' the meaning of different color of curve?

Does this figure related to HPF?

Thanks,

Hello Chris, The Y axis is gain (-db is attenuation), the X axis is frequency. The colored plots are different combinations
of HPF1, and HPF2. we will have to ask Chethan for specific combinations, ie the blue squares are 175k and 350k.

There are two filters cascaded to achieve a higher rolloff rate, as Vivek pointed out.

Regards,
Joe Quintal

Hello Chris,
The HPF1, and HPF2 are after the Mixer, and before the ADC, they are at analog IF.
If you need more, the graph I sent is what we have, we would have to get the data from Chethan/Vivek.
Regards,
Joe Quintal

Radio-Joe said:

The colored plots are different combinations
of HPF1, and HPF2. we will have to ask Chethan for specific combinations, ie the blue squares are 175k and 350k.

Joe,

Pls kindly help to provide the detail combination of each color in the figure.