Low Power RF Transceivers

Q&A ADF7030-1 and ADF7021 Modulation System

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ADF7030-1 and ADF7021 Modulation System

Kazu on Sep 29, 2020

Hi,

I'd like to use ADF7030-1 or ADF7021 with MSK modulation method but I can not find that

these chips accept MSK in thier datasheets. Both of them can use MSK modulation?

Thanks,

Kazu

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0 Kazu on Oct 2, 2020 12:21 AM 5 months ago

Hi,

Could someone take care of this case?

Kazu
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+1 edwinu

on Oct 8, 2020 12:30 AM 4 months ago
Hi Kazu,

The ADF7021 could support both 2FSK and 4FSK. While the ADF7030-1 could support both 2FSK and 4FSK in transmit mode, but only 2FSK in receive mode.

Regards,

edwinu
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0 Kazu on Oct 8, 2020 2:05 AM 4 months ago in reply to edwinu

Hi Edwinu,

Thank you. I understood both can not support MSK modulation.

One more question. How about ADF7012? It also can not support MSK modulation?

Regards,

Kazu
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+1 edwinu

on Oct 8, 2020 2:15 AM 4 months ago in reply to Kazu
Hi Kazu,

You get MSK by setting the modulation index of FSK to 0.5, which can done on both radios.
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0 Kazu on Dec 19, 2020 1:09 AM 2 months ago in reply to edwinu

Hi,

Where can I find the modulation index of FSK?

I found the following register to set FSK but can not set FSK to 0.5 in this register.

Plese let me know how to set FSK to 0.5.

Thanks,

Kazu
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