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LMX2820: MUXOUT Pin Tri-State

Part Number: LMX2820

Hi,

in the datasheet it is written that the MUXOUT pin is only in tri-state when CE is low. Is this the only way to set MUXOUT to tri-state?

If so, what is the best way to use two LMX2820 on the same SPI bus? Is it possible, in this scenario with a shared SPI bus, to read out registers via SPI from one PLL without having to disable the second PLL (via CE)?

Best regards
Joachim