I'm looking at the datasheet for an oscillator: ECS-3225MVQ-500-CN-TR

https://www.mouser.se/datasheet/2/122/ECS_3225MVQ-1825332.pdf enter image description here

As you can see, if Tri-State is not connected(NC) or pulled high (70% of Vdd voltage), then the Output is active. If Tri-State is pulled low to the ground or 30% of Vdd voltage, then the Output is not active.

But then the datasheet recommends a capacitor between Tri-state and Output. Why?

  • 2
    \$\begingroup\$ You will not be the first to confuse top and bottom views ... nor the last. +1 for asking, hopefully before laying out the PCB! \$\endgroup\$ Feb 11 '21 at 15:03

Does this help you understand things at all: -

enter image description here

  • \$\begingroup\$ I see. A couping between Vdd and GND. \$\endgroup\$
    – MrYui
    Feb 11 '21 at 14:23
  • \$\begingroup\$ @DanielMårtensson correct. \$\endgroup\$
    – Andy aka
    Feb 11 '21 at 14:26

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