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  • CC1121: CC1121: Problem with PA burning out when using a high gain exterior whip antenna??

    Part Number: CC1121 Is there any possibility of harming the PA if it transmits max power while the antenna is disconnected from the coax cable??
    • Answered

  • CC1121: Use CC1120 instead of CC1121

    Resolved
    Part Number: CC1121 Other Parts Discussed in Thread: CC1120 Hi there, Our company is struggling to source CC1121 radio chips at the moment, but we can source CC1120 radio chips.. My question is can the CC1120 and CC1121 be used interchangeably on…
    • Resolved

  • CC1121: AFSK modulation in CC11, CC12 or CC13 series

    TI Thinks Resolved
    Part Number: CC1121 Other Parts Discussed in Thread: CC1310 , CC1125 , CC1120 , CC1200 I'm in need to do AFSK over FM. This means that we do a carrier, then FM modulate onto it the FSK. For most older devices this was doable by modulating on the PLL…
    • Answered

  • CC1121: Saw filter antenna matching procedure

    Resolved
    Part Number: CC1121 Hi There, We have recently designed a circuit using the CC1121 which requires the use of a saw filter (see attached).. I need to verify the impedance matching (and possibly re-match) of the saw filter (in photo) to 50ohm. I have…
    • Resolved
    • Answered

  • CC1121: CC1121 & DN038 PCB antenna

    Resolved
    Part Number: CC1121 Other Parts Discussed in Thread: CC-ANTENNA-DK2 Hi there, Our company is considering bringing out a product for multiple regions and thus multiple frequency bands must be supported.. We will be using the CC1121 & the DN038 PCB…
    • Resolved

  • CC1121: Can CC1211 configure GPIO as event trigger to external host

    TI Thinks Resolved
    Part Number: CC1121 Hi TIer, My customer use CC1121 as RF transceiver. Can CC1121 use GPIO2 or GPIO3 as event trigger to external MCU/MPU (to wake up MCU/MPU) ? Thank you.

  • CC1121: Spurious Emissions

    Part Number: CC1121 I am having significant spurious emissions in the 790 MHz - 798 MHz range while operating the CC1121 in the 902 MHz - 928 MHz range. The circuit uses a 32 MHz crystal. The datasheet mentions that transmissions at frequencies within…

  • CC1121: Smart preamble with termination on no sync

    TI Thinks Resolved
    Part Number: CC1121 Hi there, I hope somone can help point me in the right direction with an issue I am having.. In my application I have a TX'er that TXs 1106Bytes using infinite TX mode, This TX is actually made up of multiple small packets (like…
    • Answered

  • CC1121: Trim and output crystal frequency

    Resolved
    Part Number: CC1121 Hi there, I need to trim the crystal frequency of the CC1121 in the mass production environment using firmware. The process I will use is: 1. Output the xtal frequency / 64, Using the ECG_CFG & IOCFG0 registers. 2. Measure…
    • Resolved
    • Answered

  • RE: CC1121: About LDO for power supplying to CC1121.

    Resolved
    Hello TER, Thank you for your reply. I have CC1121 datasheet, version SWRS111F. https://www.ti.com/lit/ds/symlink/cc1121.pdf . Could you tell me where I can see a description for the LDO in the datasheet? Is it "2.0–3.6 V VDD to internal digital…

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