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DAC63204EVM: DAC63204EVM

Gozde Guvendi
Prodigy 55 points
Part Number: DAC63204EVM


Tool/software:

Hello,

I use DAC63202RTER IC in my hardware design and my communication interface is SPI. I would like to ask you; Should I put the external pull-up resistors on the serial data output line and the chip select line ?

  • 0
    TI__Mastermind 42273 points

    Hi Gozde, 

    The SDO line is an open drain output, so it will require an external pullup if you want to read back from the device. 

    The external pullup on CS is optional. Many designers choose to use it so the CS line is pulled high during startup so that communication to the device is blocked while the other data lines are initializing to the default states from the MCU. 

    Best,

    Katlynne Jones