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CC2340R5-Q1: RX sensitivity of LP_EM_CC2340R5 and LP_EM_CC2745P10

QL
Prodigy 130 points
Part Number: CC2340R5-Q1
Other Parts Discussed in Thread: LP-EM-CC2340R5, CC2340R5

Tool/software:

Hi TI team

     Recently, we are testing LP-EM-CC2340R5 launch board and LP-EM-CC2745P10 launch board by conduted to get the RF performence.

     And we got 1M phy RX sensitivity is about -94.5 dBm in LP-EM-CC2340R5, about 1M phy RX -95.5 dBm for LP-EM-CC2745P10.

     but in datasheet, for LP-EM-CC2340R5 1M phy RX sensitivity is -96dBm, and for LP-EM-CC2745P10 is -96.5dBm.

     Our surronding is below

     image of LP-EM-CC2340R5: host_test_LP_EM_CC2340R5_freertos_ticlang.hex, SDK: simplelink_lowpower_f3_sdk_7_40_00_64

     image of LP-EM-CC2340R5: host_test_LP_EM_CC2745R10_Q1_freertos_ticlang.out(apllied in ti.com and download  .hex image)

     instrument: IQXel-80

     envirenment: a RF cable form IQXel-80 port connect to LP_EM_CC2745P10/LP_EM_CC2340R5 SMA port. The capacitance 15pF is connecting to SMA not the Antenna path. And we use Network analyzers to measure the pathloss of the RF cable. And LP_EM_CC2745P10/LP_EM_CC2340R5 is isolated in a Shielded box.

      We can not get the performence be like datasheet. May I ask your surronding to test the conducted RF performence? Is it in a Incubator, whose temperature is keeping 25 celsius?

 QL

Best Regards

  • 0
    TI__Expert 3630 points

    Hi QL,

    Our measurements are done inside of a temperature controlled and RF shielded area. A small increase in the temperature would not have much of an effect on the sensitivity. However, the numbers in the datasheet are just the typical values. You will always have some variations between devices. How many devices have you tested?

    Regards,

    HG

  • 0 in reply to Haiatullah Gholami
    Prodigy 130 points

    Hey HG,

           Both the 2 kinds of sample which we tested just  1 piece.  We will check again when our dut bring up. Maybe The isolation of our environgment is not so good. We will try again later.

    Best Regards,

    QL