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      • EFR32 MG1 ETSI EN300 328 v.2.1.1 (2016-11) ZigBee blocking performance

        zopapp | 03/68/2017 | 10:16 AM

        Measurement results show that EFR32 MG1 complies with EN300 328 category1 blocking requirements with good margin in 802.15.4 OQPSK DSSS mode (ZigBee PHY).

         

        The blocking test has been performed as per chapter 5.4.11.2.1.

         

        DUT:

         

        RFIC:                    EFR32 MG1

        Board:                  PCB4252A 2.4 GHz

         

        DUT Configuration:

         

        SDK:                     Flex 1.0.1.0

        RAIL:                    RAIL 1.4.2.0

        App:                      RAILTest 1.4.2

         

        RAILtest Commands:

         

        reset

        rx 0

        config24GHz802154

         

        This command set configures the part to the 802.15.4 OQPSK DSSS  ZigBee PHY. 

        Payload length is 16 bytes.

         

        Signal generators:

         

        ZigBee packet:                  Agilent E4432B

        Blocker:                              HP 8665B

         

        Measurement results

         

        Conducted PER curve

         

         

        1% PER Sensitivity:                         -97.5 dBm

        10% PER Sensitivity:                       -98.5 dBm

         

         

        Conducted Blocking at various channels

         

        Desired signal power level is set to (10% PER sensitivity  + 6 dB) = -92.5 dBm.

         

        f_Channel11:                    2405 MHz

        f_Channel18:                    2440 MHz

        f_Channel26:                    2480 MHz

         

        KB2.png

        KB3.png

        KB4.png

      • EFR32 unused pins

        dasimon | 03/68/2017 | 05:21 AM

        Question

        How should I connect the pins which are not intended to be used on EFR32?

        Answer

        • SUBGRF_OP, SUBGRF_ON, SUBGRF_IP, SUBGRF_IN: Not connected
        • 2G4RF_IOP: Not connected
        • 2G4RF_ION: Connected to ground
        • VREGSW: Not connected
        • PAVDD: Connected to VDD
        • GPIO pins: Not connected
      • WDS 3.2.11.0 Release Notes

        zopapp | 03/67/2017 | 09:23 AM

        Since you will only see the release notes once when you install the new version, here it is for reference:

         

        Maximum data rate restriction based on XO frequency introduced in Range Test project

        Help text added to Enable IQ calibration control

        DSA detection offered in antenna diversity Rx mode on Si446x C2A/A2A revisions

        PSM (Preamble Sense Mode) Rx mode configuration update

        Description of Custom packet Rx with PSM project updated

        New FW patch added for C2A Si446x revision that fixes a PSM related bug

        New FW patch added for A2A Si446x revision in PSM Rx mode that fixes a PSM related bug

        Auto frequency hop Rx configuration update when DSA is enabled

        Introduced preamble pattern selection "Std. 1010 pattern (>= 16 and < 32 bits)" for DSA detection

        Help text updated at Enable DSA control

        Data rate and preamble length unit changed to ksps and sbytes, respectively  in 4(G)FSK mode for clarity

        Description of Manual frequency hop Rx project updated

        PSM (Preamble Sense Mode) Rx mode introduced

        High power PA ramp down early shut off issue fixed

        Labels updated on CRC check boxes in 802.15.4g bidirectional packet project

        Manchester decoding on preamble restricted to no-standard preamble pattern selections

        Manchester on Constant 1's or 0's control restricted to Tx projects only

        Bit order radio button behavior changed on the Packet configuration to fix a Si446x B1B revision related bug

        Non-standard preamble pattern byte order reversed to match over the air pattern with GUI

        Direct Tx project configuration updated with matching Rx configurations

        PA power level control made unavailable in the Range Test project