silicon vs. quartz oscillators - diyAudio
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 18th July 2007, 02:56 PM   #1
diyAudio Member
 
soundcheck's Avatar
 
Join Date: Mar 2005
Location: D
Default silicon vs. quartz oscillators

Hi folks.

I stepped over this:

http://www.sitime.com/news/articles/NASA_Report.pdf

refereing to silicon oscillators as much more reliable than
quartz oscillators.

I never heard anybody discussing silicon oscillators as an alternative solution around here.

Perhaps somebody of the "clocking" specialists around
here could shed some light on the subject.

THX

Cheers
  Reply With Quote
Old 19th July 2007, 05:08 PM   #2
rossl is offline rossl  United States
diyAudio Member
 
rossl's Avatar
 
Join Date: Nov 2004
Location: Central Ohio
I looked at the data sheet for the SiT1 series. They specify 20pS RMS jitter.

There are small, inexpensive crystal oscillators available with low jitter.

Crystec 0.5pS and CTX 1pS. Crystec at Mouser and CTX at Digikey.

The jitter spec is more important to audiophiles than the spec for wide temperature range or the size reduction.

Most of us probably don't need a level of reliability that is necessary for NASA and satellites.
  Reply With Quote
Old 20th July 2007, 09:06 AM   #3
oshifis is offline oshifis  Hungary
diyAudio Member
 
Join Date: Mar 2004
Location: Budapest, Hungary
While we are at this, what are the usual jitter specs for a TCXO? I have a fairly large (about 2" x 2") Motorola TCXO with an internal 4 MHz crystal, a Colpitts oscillator and a 2-stage 74HC74 binary divider to 1 MHz. I replaced the crystal to 16.9344 MHz, and now it is serving in my Marantz CD-74. Is there a simple home method to measure/estimate/compare jitter values of different oscillators?
  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
Heptode oscillators LoFi Ninja Tubes / Valves 6 14th July 2009 09:06 PM
PSU for HP 103AR Quartz Oscillator ?? redrabbit Power Supplies 11 3rd August 2007 06:32 AM
quartz displacement guytou Digital Source 5 6th May 2005 10:01 PM
Two oscillators replaced by one? Ola Digital Source 2 2nd June 2004 07:44 PM


New To Site? Need Help?

All times are GMT. The time now is 12:33 PM.


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