Re: [LAU] open hw soundcard (was Re: status usb2 for sound)

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From: <fons@...>
To: <linux-audio-user@...>
Date: Friday, November 13, 2009 - 11:54 pm

On Fri, Nov 13, 2009 at 11:21:47PM +0000, Folderol wrote:

> Looking up the AES spec quickly reveals 48kHz +/- 10ppm. If the

And the PLL would be needed only for word-clock sync, so
it can be left out at the start.

> A quick google reveals 5ppm temp compensated oscillators with a a 7ppm

When I was with Alcatel Space, canned of-the-shelf VCXOs
were regarded as 'cheap' components. I guess they still
are unless you want some odd frequency.

Apart from stability and tuning range, the parameter to
check is the phase noise spectrum. Most of these things
are designed for digital applications where is matters
less.

Ciao,

--
FA

Io lo dico sempre: l'Italia è troppo stretta e lunga.

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Messages in current thread:
[LAU] status usb2 for sound, Hartmut Noack, (Thu Nov 5, 9:06 am)
Re: [LAU] status usb2 for sound, Paul Davis, (Thu Nov 5, 2:45 pm)
Re: [LAU] status usb2 for sound, Lorenzo, (Thu Nov 5, 3:07 pm)
Re: [LAU] status usb2 for sound, Jörn Nettingsmeier, (Thu Nov 5, 3:40 pm)
Re: [LAU] status usb2 for sound, Hartmut Noack, (Thu Nov 5, 10:40 pm)
Re: [LAU] status usb2 for sound, Jörn Nettingsmeier, (Fri Nov 6, 9:19 am)
Re: [LAU] status usb2 for sound, Florian Faber, (Fri Nov 6, 9:28 am)
Re: [LAU] status usb2 for sound, Arnold Krille, (Sat Nov 7, 10:05 am)
Re: [LAU] status usb2 for sound, Ken Restivo, (Sun Nov 8, 7:49 am)
Re: [LAU] status usb2 for sound, Karl Hammar, (Sun Nov 8, 12:02 pm)
Re: [LAU] status usb2 for sound, Folderol, (Sun Nov 8, 2:46 pm)
Re: [LAU] open hw soundcard (was Re: status usb2 for sound), , (Fri Nov 13, 11:54 pm)
Re: [LAU] open hw soundcard, Karl Hammar, (Fri Nov 13, 5:10 pm)
Re: [LAU] open hw soundcard, Karl Hammar, (Fri Nov 13, 4:43 pm)
Re: [LAU] status usb2 for sound, Patrick Shirkey, (Sun Nov 8, 8:13 am)
Re: [LAU] status usb2 for sound, Florian Faber, (Sat Nov 7, 9:15 pm)
Re: [LAU] status usb2 for sound, Hartmut Noack, (Sat Nov 7, 11:06 am)
Re: [LAU] status usb2 for sound, Paul Davis, (Sat Nov 7, 6:47 pm)
Re: [LAU] status usb2 for sound, Hartmut Noack, (Sat Nov 7, 11:40 pm)
Re: [LAU] status usb2 for sound, Arnold Krille, (Sat Nov 7, 2:14 pm)
Re: [LAU] status usb2 for sound, Clemens Ladisch, (Fri Nov 6, 7:53 am)
Re: [LAU] status usb2 for sound, Ivica Ico Bukvic, (Sat Nov 7, 3:08 am)
Re: [LAU] status usb2 for sound, Clemens Ladisch, (Tue Nov 10, 1:57 pm)
Re: [LAU] status usb2 for sound, Arnold Krille, (Thu Nov 5, 11:38 pm)
Re: [LAU] status usb2 for sound, Martin Homuth-Rosemann, (Fri Nov 6, 6:55 pm)
Re: [LAU] status usb2 for sound, Dominic , (Sat Nov 7, 5:48 pm)
Re: [LAU] status usb2 for sound, Martin Homuth-Rosemann, (Sun Nov 8, 3:54 pm)
Re: [LAU] status usb2 for sound, Dominic , (Mon Nov 9, 12:20 am)
Re: [LAU] status usb2 for sound, david, (Sat Nov 7, 9:11 pm)
Re: [LAU] status usb2 for sound, Giso Grimm, (Thu Nov 5, 3:01 pm)