Constant temperature crystal oscillator

Posted on Thursday, September 30th, 2010 in hacks by Ian

Crystal oscillators generate pretty accurate frequencies, but the output varies a bit depending on the operating temperature. The crystal oven heats a crystal to a constant temperature to get the most accurate and consistent frequency possible.

Via Hack a Day.

This entry was posted on Thursday, September 30th, 2010 at 12:45 pm and is filed under hacks. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

One Response to “Constant temperature crystal oscillator”

  1. John B. says:

    This type of oscillator is generally called an OCXO (ovenized crystal oscillator). You get better performance from a crystal cut which is designed from the outset for operation at a specific oven temperature (for example 70C), instead of ovenizing a generic oscillator. At the moment (May 2011) there is a guy with a stock of 26 MHz OCXO parts for $2 each on ebay. (normally an OCXO will go for $50 to $100 used and $200+ new)

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