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LMX2594: Disabling RF outputs

Gregory Duperon
Expert 6040 points
Part Number: LMX2594

Is it possible to disable individual outputs on this part?

If so, what are the risks in doing so?

  • +1
    TI__Mastermind 28960 points

    Hi Gregory,

    Individual outputs can be disabled using the OUTx_PD bits. I'm not sure what you mean by "risk" - the output goes high impedance when powered down, and there may be some low-level capacitive feedthrough because of internal high-frequency coupling even while the output is powered down. For better isolation, the powered down outputs may be configured with OUTx_MUX=0x3 (Hi-Z) as long as neither output is configured for channel divider. If you are asking about some other specific risk, please clarify.

    Regards,