CC1310: CC1310 default intermediate frequency(IF)

no_more_wires

Part Number: CC1310

Hi,

I need to know the IF for CC1310.

There is a register called intFreq in CMD_PROP_RADIO_SETUP, but the help in TRM and smartRFstudio is encrypted...

"Intermediate frequency to use for RX, in MHz on 4.12 signed format. TX will use same intermediate frequency if supported, otherwise 0.
0x8000: Use default."

We use 0x8000 which is default. Please share what default is? Not in any document I have searched.

-no more wires

over 3 years ago

0 RGW over 3 years ago

TI__Mastermind 29570 points

Hi,

This is dependent on your receiver bandwidth setting. The IF will be 250 kHz, 500 kHz or 1 MHz.

For a low date rate it will be 250 kHz and a high data rate 1 MHz.

Regards,

Richard

0 no_more_wires over 3 years ago in reply to RGW

Expert 1460 points

Thanks Richard,

Just one more thing I need to know then.

What are the limits for low, middle and high data rate?

I should be able to get this info from SmartRF studio but I can't. And my certification requires that I state the used IF.

I use 155kHz receiver bandwidth. Is there a one-to-one mapping to IF?

-no more wires

0 RGW over 3 years ago in reply to no_more_wires

TI__Mastermind 29570 points

Hi,

For a 155 kHz receiver bandwidth, the IF will be 500 kHz.

Best regards,

Richard

0 TER over 3 years ago in reply to RGW

TI__Guru**** 317180 points

This can also be found in "23.7.5.2 Proprietary Mode Setup Command" in the TRM.

Sub-1 GHz

Sub-1 GHz forum

CC1310: CC1310 default intermediate frequency(IF)