1 Reply Latest reply on Jun 5, 2019 7:50 AM by MichaelF_56

    CYW54907 insted of LBWA1UZ1PS-241 module in "CYW954907AEVAL1F" board.

    jina_4171326

      hi,

       

      currently i'm using CYW954907AEVAL1F development board with wiced IDE. it's based on CYW54907 chip which is inside LBWA1UZ1PS-241 module.

       

      but now i want to make my custom board by using CYW54907 chip. but when i refer CYW954907AEVAL1F  board schematic then it have a LBWA1UZ1PS-241 module.

       

      as per i check LBWA1UZ1PS-241 module details in Murata.

       

      LBWA1UZ1PS-241 = CYW54907 + 37.4MHz external oscillator section + TR Switch section(SPDT + Diplexer)        //as per below link

      https://wireless.murata.com/datasheet?/RFM/data/lbwa1uz1gc-958.pdf

       

      now, i know about 37.4MHz oscillator section..

       

      but.. now i need to some more information for TR switch section. it's i think that a simply logic for make a common antenna for 5G and 2.4G frequncy.

       

      i'm worried about "ANT0_DIV_RF_SW_CTRL_4" and "ANT1_DIV_RF_SW_CTRL_5" pins about antenna which is comes from "WRF_PAOUT_2G", "WRF_RFIN_2G" and "WRF_PAOUT_5G" , "WRF_RFIN_5G"..

       

      have you any reference design for this things(TR switch)..

       

      or have you reference design or application circuit for CYW54907 with this TR switch section. so, we can make our own product.

       

      thanks

      jignesh narola

        • 1. Re: CYW54907 insted of LBWA1UZ1PS-241 module in "CYW954907AEVAL1F" board.
          MichaelF_56

          "but now i want to make my custom board by using CYW54907 chip"

           

          Chip down Wi-Fi/Combo design is support intensive and costly from a time to market and regulatory perspective. This is why we primarily support pre-certified partner modules (such as the 1PS) in this space.

           

          As such, chip down is not supported here on the Community, but if you reach out to your local/regional Cypress/Distribution team, they may be able to setup direct factory support or enable the chip down design through one of our module partners familiar with the nuances of chip down WiFi/Combo design.