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Posts Tagged ‘crystal’

Simple crystal tester

Monday, May 2nd, 2016

Dilshan Jayakody writes: This is simple Colpitts oscillator to test commonly available passive crystals which range between 2MHz to 27MHz. This unit must connect to an oscilloscope and/or frequency counter to get the frequency of the crystal. This circuit is design to work around 9V to 12V DC power source....

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Posted in RF, testing | No Comments »

PCB a Week 1: Crystal oscillator breakout

Tuesday, December 18th, 2012

Matseng started a challenge for himself where he intends to post a PCB project a week. The first project is "NanoUtils Xtal" - a crystal oscillator breakout board. The board is designed to be interfaced with microcontrollers that have their oscillator pins next to a ground pin. This board is...

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Posted in project logs | 8 Comments »

Partlist Wednesday: Clock sources

Wednesday, August 24th, 2011

Every Wednesday we highlight a component from the updated Dangerous Prototypes partlist. This week: clock sources. As always, there are footprints for all these parts and more in our public domain Cadsoft Eagle part library. In our workshop the first rule of crystal selection is 'use a surface mount HC-49/US...

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Posted in partlist | 5 Comments »

Constant temperature crystal oscillator

Thursday, September 30th, 2010

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.

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Posted in hacks | 1 Comment »

Recent Comments

  • KH: He had qualms about electrolytic cap leakage impacting sleep current. I think such leakage is very low and hard to measure using hobby equipment, so...
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