crystal with three pins..

Marlowe · 16th January 2004, 03:22 PM

Hello,

I am tweaking i2S asynchronization reclock ELSO designed for DAC.
In my city the 100Mhz crystal is not available, so I used a 50Mhz one temporarily.
Finally, I bought a 97.5Mhz one today.
But it is not similar to conventional crystal with two pins, there are three pins under it!
I don't know how to connect it to PCB as two pins crystal.

lux0 · 16th January 2004, 03:29 PM

The thired poin is probably the package ground. Check it with an ohmeter.

azira · 16th January 2004, 03:29 PM

Sorry for the obvious but....

is it a crystal or an oscillator? If it's an oscillator you would have 3 pins, pwr, gnd, and out.

peranders · 16th January 2004, 03:43 PM

Maybe a crystal filter for narrow IF amps

Marlowe · 16th January 2004, 03:50 PM

I just tried.
Oh yes, the third pin is connected to ground.
Thank you.

16th January 2004, 03:22 PM	#1
Marlowe diyAudio Member Join Date: Feb 2003	crystal with three pins.. Hello, I am tweaking i2S asynchronization reclock ELSO designed for DAC. In my city the 100Mhz crystal is not available, so I used a 50Mhz one temporarily. Finally, I bought a 97.5Mhz one today. But it is not similar to conventional crystal with two pins, there are three pins under it! I don't know how to connect it to PCB as two pins crystal. __________________ Here's looking at you, kid.

16th January 2004, 03:43 PM	#4
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	Maybe a crystal filter for narrow IF amps __________________ /Per-Anders (my first name) or P-A as my friends call me

16th January 2004, 03:50 PM	#5
Marlowe diyAudio Member Join Date: Feb 2003	I just tried. Oh yes, the third pin is connected to ground. Thank you. __________________ Here's looking at you, kid.

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16th January 2004, 03:29 PM	#2
lux0 diyAudio Member Join Date: Nov 2003 Location: Canada	The thired poin is probably the package ground. Check it with an ohmeter.

16th January 2004, 03:29 PM	#3
azira diyAudio Member Join Date: Dec 2003 Location: Near Seattle	Sorry for the obvious but.... is it a crystal or an oscillator? If it's an oscillator you would have 3 pins, pwr, gnd, and out.

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