Crystal Oscillators

A crystal oscillator is a electromechanical device, it's also an electronic oscillator circuit. The main purpose of an oscillator is to make use of a quartz crystal as a frequency. Crystal oscillator’s use the mechanical resonance of a vibrating crystal, of which is made up from a piezoelectric material. This process allows the oscillator to create and obtain an electric signal with a high precision frequency.


Where Crystal Oscillators are used


This type of frequency is mostly used to keep track of time within a wrist watch or a digital integrated circuit, to provide a stable clock signal. This is where this signal gained it's commonly referred to name "clock signal". This clock signal is used to synchronise the operation of the other electronic devices that make up the system the oscillator is housed in. An oscillator is also used to help stabilise frequencies for radio transmitters and receivers, used in clocks (clock oscillator), computers and cell phones. Quartz crystal can also be found inside test and measurement equipment such as counters, signal generators and oscilloscopes.


A little more information on Crystal Oscillators


  • Crystal oscillators are known to be superior to ceramic resonators, this is for a multitude of reasons. They offer higher stability, they're higher quality and are considerably lower in cost and more compact in size.

  • Quartz crystals are manufactured for frequencies that range from a few tens of kilohertz all the way up to hundreds of megahertz.

Types of Crystal Oscillators


  • TCXO - These are used when a temperature stability is needed and can't be attained through a standard crystal oscillator (XO) or a voltage controlled crystal oscillator (VCXO).

  • OCXO - This is an oven controlled crystal oscillator, a type of oscillator that achieves the highest frequency stability that a quartz crystal can. They are designed to operate inside a temperature controlled oven, they are physically larger and require more power to run.

  • VCXO - This is a voltage controlled crystal oscillator, it controls the change in crystal output by using a DC (direct current) voltage.

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Description Price Oscillator Type Output Frequency Output Level Frequency Stability Mounting Type Package Type Minimum Operating Supply Voltage Maximum Operating Supply Voltage Pin Count Length Minimum Operating Temperature Width Height Maximum Operating Temperature
RS Stock No. 173-5846
Mfr. Part No.S75005-20.000-X-15
BrandAKER
PHP107.844
Each (On a Reel of 250)
units
Clock 20 MHz HCMOS ±50ppm Surface Mount SMD 4.5 V 5.5 V - - -40 °C - 1.3mm +85 °C
RS Stock No. 671-9839
Mfr. Part No.S75005-20.000-X-15
BrandAKER
PHP128.36
Each
units
Clock 20 MHz HCMOS ±50ppm Surface Mount SMD 4.5 V 5.5 V - - -40 °C - 1.3mm +85 °C
RS Stock No. 671-9659
Mfr. Part No.S73305-25.000-X-15
BrandAKER
PHP126.74
Each
units
Clock 25 MHz HCMOS ±50ppm Surface Mount SMD 2.97 V 3.63 V - - -40 °C - 1.3mm +85 °C
RS Stock No. 173-4590
Mfr. Part No.S73305-25.000-X-15
BrandAKER
PHP105.90
Each (On a Reel of 250)
units
XO 25 MHz HCMOS ±50ppm Surface Mount SMD 2.97 V 3.63 V - - -40 °C - 1.3mm +85 °C
RS Stock No. 672-0163
Mfr. Part No.S533025-32.768K-X-15
BrandAKER
PHP483.89
Each
units
Clock 32.768 kHz HCMOS ±25ppm Surface Mount SMD 3.14 V 3.46 V - - -40 °C - 1.3mm +85 °C
RS Stock No. 173-4604
Mfr. Part No.S75005-8.000-X-15
BrandAKER
PHP107.844
Each (On a Reel of 250)
units
XO 8 MHz HCMOS ±50ppm Surface Mount SMD 4.5 V 5.5 V - - -40 °C - 1.3mm +85 °C
RS Stock No. 671-9668
Mfr. Part No.S73305-50.000-X-15
BrandAKER
PHP150.50
Each
units
Clock 50 MHz HCMOS ±50ppm Surface Mount SMD 2.97 V 3.63 V - - -40 °C - 1.3mm +85 °C
RS Stock No. 671-9854
Mfr. Part No.S75005-50.000-X-15
BrandAKER
PHP135.92
Each
units
Clock 50 MHz HCMOS ±50ppm Surface Mount SMD 4.5 V 5.5 V - - -40 °C - 1.3mm +85 °C
RS Stock No. 671-9722
Mfr. Part No.S33305-10.000-X
BrandAKER
PHP289.50
Each
units
Clock 10 MHz CMOS ±50ppm Surface Mount SMD 3.14 V 3.46 V - - -40 °C - 1.1mm +85 °C
RS Stock No. 173-4659
Mfr. Part No.S33305-10.000-X
BrandAKER
PHP121.104
Each (On a Reel of 250)
units
XO 10 MHz CMOS ±50ppm Surface Mount SMD 3.14 V 3.46 V - - -40 °C - 1.1mm +85 °C
RS Stock No. 671-9719
Mfr. Part No.S53305-50.000-X
BrandAKER
PHP158.60
Each
units
Clock 50 MHz CMOS ±50ppm Surface Mount SMD 3.14 V 3.46 V - - -40 °C - 0.95mm +85 °C
RS Stock No. 173-4695
Mfr. Part No.S31805-32.000-X
BrandAKER
PHP188.664
Each (On a Reel of 250)
units
XO 32 MHz CMOS ±50ppm Surface Mount SMD 1.71 V 1.89 V - - -40 °C - 1.1mm +85 °C
RS Stock No. 173-4694
Mfr. Part No.S51805-12.000-X
BrandAKER
PHP175.92
Each (On a Reel of 250)
units
XO 12 MHz CMOS ±50ppm Surface Mount SMD 1.71 V 1.89 V - - -40 °C - 0.95mm +85 °C
RS Stock No. 671-9817
Mfr. Part No.S75005-8.000-X-15
BrandAKER
PHP142.39
Each
units
Clock 8 MHz HCMOS ±50ppm Surface Mount SMD 4.5 V 5.5 V - - -40 °C - 1.3mm +85 °C
RS Stock No. 173-4592
Mfr. Part No.S75005-14.7456-X-15
BrandAKER
PHP107.844
Each (On a Reel of 250)
units
XO 14.7456 MHz HCMOS ±50ppm Surface Mount SMD 4.5 V 5.5 V - - -40 °C - 1.3mm +85 °C
RS Stock No. 173-4675
Mfr. Part No.S71805-14.31818-X-15
BrandAKER
PHP126.204
Each (On a Reel of 250)
units
XO 14.3182 MHz HCMOS ±50ppm Surface Mount SMD 1.71 V 1.89 V - - -40 °C - 1.3mm +85 °C
RS Stock No. 671-9634
Mfr. Part No.S73305-16.000-X-15
BrandAKER
PHP150.50
Each
units
Clock 16 MHz HCMOS ±50ppm Surface Mount SMD 2.97 V 3.63 V - - -40 °C - 1.3mm +85 °C
RS Stock No. 671-9628
Mfr. Part No.S73305-12.000-X-15
BrandAKER
PHP150.50
Each
units
Clock 12 MHz HCMOS ±50ppm Surface Mount SMD 2.97 V 3.63 V - - -40 °C - 1.3mm +85 °C
RS Stock No. 173-4676
Mfr. Part No.S71805-32.000-X-15
BrandAKER
PHP126.204
Each (On a Reel of 250)
units
XO 32 MHz HCMOS ±50ppm Surface Mount SMD 1.71 V 1.89 V - - -40 °C - 1.3mm +85 °C
RS Stock No. 173-4588
Mfr. Part No.S73305-20.000-X-15
BrandAKER
PHP107.844
Each (On a Reel of 250)
units
XO 20 MHz HCMOS ±50ppm Surface Mount SMD 2.97 V 3.63 V - - -40 °C - 1.3mm +85 °C