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OPA361 Rset(pin3) function?

Jin-Suk Choi
Intellectual 1780 points
Other Parts Discussed in Thread: OPA361

Dear.

 

What's the function of pin3 Rset?

 

When unused, how handle this pin?

 

Thanks in advance.

  • 0
    Guru 21975 points

    The OPA361 is optimized to interface to the OMAP2420 processor. This pin connects to the processor and sets full-scale output current of its video DAC. Because the 4k ohm resistor is accurately ratio matched to the 500 ohm input resistor of the OPA361, this establishes an accurate video level at the output of the OPA361.

    If not used, this pin can be left disconnected.

    Regards, Bruce