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Original question:

cc1101 used for dual band receiver, 433 and 868 MHz

CC1101-Q1: implement dual-frequency transceiver(433M & 868Mhz) in one IC using CC1101

tech15
Prodigy 120 points
Part Number: CC1101-Q1
Other Parts Discussed in Thread: CC1101

While the CC1101 datasheet offers circuit design references for individual frequency bands, it lacks reference designs for dual-frequency circuits.

Is there any way to do this ? any suggestions or  experience to learn from? much appreciation in advance.

Btw, the model I use is CC1101QRHBRG4Q1 

  • 0
    TI__Mastermind 31610 points

    Hi,

    There is a solution for this based upon the CC1101QRHBRG4Q1. Before suggesting a proposal can you please indicate the opportunity size for this project. Alternatively share the details with your TI contact so we can suggest an optimum solution.

    Regards,

       Richard

  • 0 in reply to RGW
    Prodigy 120 points

    Thank you for your prompt response. Regarding the opportunity size for the project involving CC1101QRHBRG4Q1, the anticipated usage is approximately 600k units. This figure reflects the expected scale of deployment for the solution incorporating this component.

    Given this usage estimate, I am keen to explore potential solutions that can efficiently address this level of demand. Any recommendations or proposals you can provide in light of this opportunity size would be greatly appreciated.

  • 0 in reply to tech15
    TI__Mastermind 31610 points

    Hi,

    With the CC1101, the best option would be to use the 868 MHz balun; which goes into a SPDT switch. With the "A" switch option, there should be a 433 MHz LPF and on the "B" switch option there should be a 868 MHz LPF. Then these signals should go into another SPDT switch to have a common RF port.

  • 0 in reply to RGW
    TI__Mastermind 31610 points

    If you just need one PCB that can provide the option to operate at several frequencies but with different BOMs, then the IPC could always be used as well: