How can one verify the presence of the Si530's OE internal pull-up resistor?
The Si530 crystal oscillator includes a 17 kOhm internal resistor from the OE (Output Enable) pin to VDD. However, you can't simply pick up a sample Si530 and measure the resistance between the OE and VDD pins. This is because the device must have power applied. The device's factory configuration is enabled on power-up.
The presence of the Si530's OE internal pull-up resistor can best be verified based on OE polarity. For example, if the P/N's OE polarity is OE active high, the device will yield an output even if OE is unconnected. Only driving OE LOW will disable the part's output clock.