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DS08MB200: how to connect pins of an unused channel

Thomas Ganahl
Prodigy 20 points
Part Number: DS08MB200

As one channel is unused i will connect the ENABLE signals to GND as stated in the datasheet.

How to connect the differential inputs of the chip, can they be left open?

Are there any recommendations regarding the blocking capacitors on the VCC pins? 

  • 0
    TI__Mastermind 43795 points

    Hi Thomas,

    Yes connecting the ENABLE signals will disable the output side.

    For the inputs:

    Input Failsafe Biasing

    External pull up and pull down resistors may be used to provide enough of an offset to enable an input failsafe

    under open-circuit conditions. This configuration ties the positive LVDS input pin to VDD thru a pull up resistor

    and the negative LVDS input pin is tied to GND by a pull down resistor. The pull up and pull down resistors

    should be in the 5kΩ range to minimize loading and waveform distortion to the driver.

    For the supply pins:

    I recommend a 0.1uF capacitor for each pin.

     

    Regards,

    Lee

  • 0 in reply to Lee Sledjeski
    Prodigy 20 points
    Hi Lee,

    thank you very much for the information.

    Best regards,
    Thomas