• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 54 subscribers
  • Views 250 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

OOK with CC112x

Hung LI
Prodigy 100 points
Other Parts Discussed in Thread: CC1121, CC1101

Hi,

I am looking for the OOK receiver for our existing OOK transmitter but I don't sure it is good for using CC1121 or CC1101 for such application.  Is there any sensitivity or range enhancement for using CC112x compared with CC1101.

In addition, I cannot find sensitivity reading for the CC112x with OOK operation with 25kHz or 100kHz Rx BW in the data sheet.  Can you provide us some reference no. on it.

Finally, I used the smartRF studio with the CC112x kit with transparent serial mode setting and found RSSI value will up to -80dBm if Rx BW is set to 100kHz.  Do you think the signal lower than -80dBm will not be receive with such setting?

Thanks,

HungLI

  • 0
    TI__Mastermind 27145 points
    Hi,
    CC1101 is for Wideband operation (58KHz ~ 812KHz Bandwidth) whereas CC1121 covers from 40KHz ~ 200KHz Bandwidth. CC1121 is good for narrowband applications. They both have similar performance at equal bandwidths ( 100KHz).
    You can find Sensitivity spec for 4.8KBPS data rate, OOK, 66KHz BW in CC1121 data sheet.
    For exapmle, Sensitivity for 2-GFSK, 38.4KBPS, 100KHz BW is -110dBm for CC1121. At 100KHz BW, it should receive closer to -110dBm.
    Thanks,PM