Hello friends,
I'm owning a NewClassD Neutrino crystal oscillator generating 12.288 MHz. Due to a forced change in my project (system failure that cannot be repaired at reasonable cost) I would now need the oscillator to generate 24.576 MHz. This should be possible by changing the crystal, so I tried to find out which 12.288 MHz crystal is used on the board. Unfortunately NewClassD seems to have disappeared, so I cannot ask them...
The marking just sais "122 ADIF" which I was sadly unable to find on the web. And so I'm asking for help here to identify the crystal used and to find out with which (ideally compatible) 24.576 MHz part I could replace it.
Thanks so much for any help you can provide!
Regards,
Winfried
I'm owning a NewClassD Neutrino crystal oscillator generating 12.288 MHz. Due to a forced change in my project (system failure that cannot be repaired at reasonable cost) I would now need the oscillator to generate 24.576 MHz. This should be possible by changing the crystal, so I tried to find out which 12.288 MHz crystal is used on the board. Unfortunately NewClassD seems to have disappeared, so I cannot ask them...
The marking just sais "122 ADIF" which I was sadly unable to find on the web. And so I'm asking for help here to identify the crystal used and to find out with which (ideally compatible) 24.576 MHz part I could replace it.
Thanks so much for any help you can provide!
Regards,
Winfried
@lcsaszar
Thanks a lot for responding! I do have questions, though, as I have no experience with MEMS Resonators:
The size of the device now on the PCB is 6x3.5mm², the device at your link is 2.5x2mm² which I unfortunately cannot handle at all. Actually, in older production lots of the oscillator boards even larger quartz crystals were used as one can see on the picture.
Well, anyway, your MEMS hint was valuable and by specifying the 6mm dimension I found this quartz device at Mouser matching 24.576MHz frequency and dimensions. The issue remains, though, if that will make an as good 24.576MHz oscillator as the 12.288MHz one was. I cannot judge that because I have no spec of the "122 ADIF" part. Can you shed any more light?
Thanks a lot so far!
Winfried
Thanks a lot for responding! I do have questions, though, as I have no experience with MEMS Resonators:
The size of the device now on the PCB is 6x3.5mm², the device at your link is 2.5x2mm² which I unfortunately cannot handle at all. Actually, in older production lots of the oscillator boards even larger quartz crystals were used as one can see on the picture.
Well, anyway, your MEMS hint was valuable and by specifying the 6mm dimension I found this quartz device at Mouser matching 24.576MHz frequency and dimensions. The issue remains, though, if that will make an as good 24.576MHz oscillator as the 12.288MHz one was. I cannot judge that because I have no spec of the "122 ADIF" part. Can you shed any more light?
Thanks a lot so far!
Winfried
Lars / NewclassD is still reachable via https://www.facebook.com/AudioConstruction/ - he has posted a new email address here too, and is still providing feedback and advice.
Actually I ordered the same Neutrino clock and I was rather surprised when it arrived that the crystal was missing! But Lars clarified that it is a MEMS resonator. So do I know 😉 Mine is 11.2896 MHz, and it works well.
@lcsaszar
Thanks for the hint! The question really is which device to take that has compatible specs and can still be reasonably handled by me 😉
To clarify this I have written to Lars at the eMail address given on his Facebook page, hoping for his advising reply.
I'll be back to report the outcome 🙂
Regards,
Winfried
Thanks for the hint! The question really is which device to take that has compatible specs and can still be reasonably handled by me 😉
To clarify this I have written to Lars at the eMail address given on his Facebook page, hoping for his advising reply.
I'll be back to report the outcome 🙂
Regards,
Winfried