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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

  • Drone: Gee, just the sight of one of these HP493A TWT laboratory amps brings back decades-old memories. There are four models covering 1-12.4 GHz in steps...
  • KH: After reading all the comments, I have questions: Does this mean STM32 and AVR boards/parts from dodgy online sellers are suspect? What are your opinions?...
  • Sjaak: They are available with more flash then their ST counterparts which makes them more interesting. You don't have to port the code, but use another...
  • Sjaak: I dunno if you can 'license' register definitions, but I'm not a lawyer. Since the chip is available since 2015 and I haven't heard of...
  • Sjaak: They can be found on taobao or the Chinese markets in Shenzhen.