Crystal Oscillator Package (4 pins)

[AdkinsJr]

Homework Statement

I'm trying to hook up crystal oscillator package on breadboard and test for expected operation: I'm not sure how and cannot find any data sheets for the pin connection diagrams, I attached an image I found of the kind of package I'm using. There are four pins.

Homework Equations

; Attempt Solution [/B]

The package is supposed to be equivalent to a CRL series circuit in parallel with another capacitor, as if you were measuring over the capacitor in parallel. (I attached a diagram). The values for the elements in the C-CLR circuit are for a .5 MHz crystal oscillator (that's what's given in my text)...I have crystal oscillator packages with varying operation frequencies...but I think I can assess how it should behave just by comparing to C-CLR circuit. I just don't know how to wire a crystal exactly...is there a ground?

 

[gneill]

It will probably look something like this:

Datasheet

 

[AdkinsJr]

Thanks. I think this will work. So it looks like I'll have to wire up one of the test circuits TTL or LSTTL to test its' operation? Ouch!

 

[rude man]

Thanks. I think this will work. So it looks like I'll have to wire up one of the test circuits TTL or LSTTL to test its' operation? Ouch!

You can skip the 15pF output capacitor; it's just there to test for worst-case loading.
So you're left with one 0.1uF capacitor across the power supply pins. Not much of an 'ouch', is it?

 

[rezeew]

As a scientist, my first recommendation would be to consult the manufacturer of the crystal oscillator package for the pin connection diagram and any other relevant information. This will ensure that you have the most accurate and up-to-date information for your specific package.

If you are unable to obtain this information, my second recommendation would be to carefully examine the package and its pins, as well as any accompanying documentation, to determine the function of each pin. Generally, crystal oscillator packages will have two pins for power supply (Vcc and GND), one pin for the input signal (usually labeled "IN"), and one pin for the output signal (usually labeled "OUT").

Once you have determined the function of each pin, you can then refer to the diagram you attached and compare it to a standard C-CLR circuit to determine how to wire the crystal oscillator on your breadboard. Remember to also take into account any additional capacitors or other components that may be required for proper operation, as mentioned in your text.

If you are still unsure, I would recommend reaching out to a mentor or colleague with experience in working with crystal oscillators for guidance and assistance. It is always important to carefully research and plan before conducting any experiments, especially when dealing with sensitive components like crystal oscillators.