The image frequency

yuetanhuang

Other Parts Discussed in Thread: CC2652P7, CC2651P3, CC2652R7

Hi Sir,

We want to know what the image frequency is set to? We want to do the selectivity test, but we don't know the value of image frequency.

over 3 years ago

0 LeonardEllis over 3 years ago

TI__Guru 71526 points

Hello Yuetan,

Please identify the TI part number of the device you are referring to. What datasheet did the image you posted come from, please?

Thank you,

~Leonard

0 yuetanhuang over 3 years ago in reply to LeonardEllis

Prodigy 50 points

Hi Leonard,

The image is from the CC2652P7 datasheet. And I want to know if all the chips have its own image frequency? If so, how can I search that? I also want to konw about other chips, such as CC2651P3, CC2652R7 etc.

+1 fredrikgk over 3 years ago in reply to yuetanhuang

Expert 2170 points

"Note that Image frequency + 1 MHz is the Co- channel –1 MHz." <- This answers your question....

f_IF + 1 MHz = f_c - 1 MHz -> f_IF = f_c - 2 MHz

You can also look at section 2.3 in this document: https://www.ti.com/lit/pdf/swra601

0 yuetanhuang over 3 years ago in reply to fredrikgk

Prodigy 50 points

Hi fredrlkgk,

Thank you so much to solve my question.

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The image frequency