Go Back   Home > Forums > Source & Line > Digital Source

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 7th March 2006, 12:30 AM   #1
percy is offline percy  United States
diyAudio Member
 
Join Date: Apr 2004
Location: MN
Default Who makes the best crystals ?

I am searching for a good crystal to replace in the sound card. Right now its a Hooray (HEC?) 24.576Mhz. Is it good ?

Almost all that I looked at Mouser/Digikey have a tolerance/stability of +/-50ppm. What other better options do I have ?
  Reply With Quote
Old 7th March 2006, 12:32 AM   #2
diyAudio Member
 
b-square's Avatar
 
Join Date: Feb 2004
Location: Seattle, WA
Default Re: Who makes the best crystals ?

Quote:
Originally posted by percy
I am searching for a good crystal to replace in the sound card. Right now its a Hooray (HEC?) 24.576Mhz. Is it good ?

Almost all that I looked at Mouser/Digikey have a tolerance/stability of +/-50ppm. What other better options do I have ?
Tent XO.

http://www.tentlabs.com/
  Reply With Quote
Old 7th March 2006, 02:33 AM   #3
diyAudio Member
 
Join Date: Dec 2005
Location: Kuala Lumpur
Is this a crystal or a module?
If it's just a crystal the accuracy will depend on the capacitors and the oscillator circuit
  Reply With Quote
Old 7th March 2006, 03:11 AM   #4
Bare is offline Bare  Canada
diyAudio Member
 
Join Date: Dec 2001
Location: vancouver
StarFleet ... Doh!
Only the V best will do for your Soundcard
  Reply With Quote
Old 7th March 2006, 07:06 AM   #5
Banned
 
Join Date: Dec 2001
Location: Zamboanga, City of Flowers, Mindanao
Send a message via Yahoo to Elso Kwak
Default Re: Re: Who makes the best crystals ?

Quote:
Originally posted by b-square


Tent XO.

http://www.tentlabs.com/
That is NOT a crystal!
It is a complete crystal oscillator!
  Reply With Quote
Old 7th March 2006, 07:08 AM   #6
Banned
 
Join Date: Dec 2001
Location: Zamboanga, City of Flowers, Mindanao
Send a message via Yahoo to Elso Kwak
Cool Re: Who makes the best crystals ?

Quote:
Originally posted by percy
I am searching for a good crystal to replace in the sound card. Right now its a Hooray (HEC?) 24.576Mhz. Is it good ?

Almost all that I looked at Mouser/Digikey have a tolerance/stability of +/-50ppm. What other better options do I have ?

Ordinary crystals are AT cut . You can try other cuts like SC, very expensive, but the circuit of the oscillator is more important.
I bet the ppm thingy you cannot hear.
  Reply With Quote
Old 7th March 2006, 03:25 PM   #7
diyAudio Member
 
b-square's Avatar
 
Join Date: Feb 2004
Location: Seattle, WA
Default Re: Re: Re: Who makes the best crystals ?

Quote:
Originally posted by Elso Kwak


That is NOT a crystal!
It is a complete crystal oscillator!
thank you for your input.
  Reply With Quote
Old 7th March 2006, 03:43 PM   #8
EC8010 is offline EC8010  United Kingdom
diyAudio Moderator Emeritus
 
EC8010's Avatar
 
Join Date: Jan 2003
Location: Near London. UK
The long-term frequency tolerance is neither here nor there. Would you be able to hear if the music came out 0.005% slow or fast? What is important is the short term variation in frequency known as jitter. Jitter is mostly determined by the circuit around the crystal. Sound cards and CD players typically use appalling circuits which is why Elso Kwak's and Guido Tent's clocks are so popular.
__________________
The loudspeaker: The only commercial Hi-Fi item where a disproportionate part of the budget isn't spent on the box. And the one where it would make a difference...
  Reply With Quote
Old 8th March 2006, 07:31 PM   #9
diyAudio Member
 
Join Date: Jan 2001
Location: Scandinavia
In my experience (and I have not tried Guido's stuff!), Valpey Fisher makes killer oscillator modules. Vectron is also supposed to make really good stuff, but they are impossible to communicate with.

Phase jitter is what you want to minimize. In the end, the net result is a function of product and implementation.

Petter
  Reply With Quote
Old 8th March 2006, 07:36 PM   #10
Banned
 
Join Date: Dec 2001
Location: Zamboanga, City of Flowers, Mindanao
Send a message via Yahoo to Elso Kwak
Quote:
Originally posted by Petter
In my experience (and I have not tried Guido's stuff!), Valpey Fisher makes killer oscillator modules. Vectron is also supposed to make really good stuff, but they are impossible to communicate with.

Phase jitter is what you want to minimize. In the end, the net result is a function of product and implementation.

Petter

Try to order a few in CD-frequencies like 11.2896 MHz or 16.9344MHz. I will take a few of the former


  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Accurate 50ppm Crystals fmak Digital Source 6 5th June 2008 03:24 PM
Where there are crystals to buy <10ppm Sabas Digital Source 92 3rd November 2005 04:19 PM
22.5792 MHz crystals (also 26.2144) danville Swap Meet 0 15th June 2004 11:46 PM
where can I buy CD player crystals? jarthel Digital Source 0 3rd May 2002 01:09 PM


New To Site? Need Help?

All times are GMT. The time now is 12:05 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2