Using CC2590 to boost CC2640 output

Philip Craig

Other Parts Discussed in Thread: CC2640, CC2590

Hi, I am looking for some design guide or reference design for adding the CC2590 booster to the RF outputs of the CC2640. I need to boost the +5dBm output from the CC2640 up to +14dBm that the CC2590 provides. There are reference designs for CC25xx and CC24xx devices but nothing for the CC2640.

I am also interested to know if I should supply CC2590 Vdd with the DCDC Vdds output from the CC2640 or from the independent 3.3V power supply. Any help would be appreciated.

Cheers,

Phil.

over 5 years ago

0 R.M over 5 years ago

TI__Genius 9215 points

Dear Phil,

Please take a look at this reference design:
www.ti.com/.../TIDC-CC2650-CC2592-EMK

You can also take a look at these E2E threads:
e2e.ti.com/.../590465
e2e.ti.com/.../499049

Best Regards,
R.M

0 Philip Craig over 5 years ago in reply to R.M

Prodigy 110 points

Thanks R.M, this is helpful. Can you let me know how the L3 between RF_P and RF_N should have its value determined?

Cheers,

Phil.

0 R.M over 5 years ago in reply to Philip Craig

TI__Genius 9215 points

Hi Phil,

L3 is not mounted by default but it's recommended to have a footprint for a component there if tuning becomes needed on your custom design.

Best Regards,
Reidar

RF & microwave

RF & microwave forum

Using CC2590 to boost CC2640 output