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. 144-1103
BrandRS PRO
€1.068
Each (In a Pack of 5)
units
Clock 25 MHz CMOS ±50ppm Surface Mount SMD - 1.8 V dc - - -20 °C - 1mm +70 °C
RS Stock No. 144-5004
BrandRS PRO
€0.792
Each (In a Pack of 5)
units
Clock 3.68 MHz HCMOS ±25ppm Surface Mount SMD - 3.3 V dc - - -40 °C - 1mm +85 °C
RS Stock No. 144-5001
BrandRS PRO
€1.334
Each (In a Pack of 5)
units
Clock 14.74 MHz TTL ±50ppm Surface Mount SMD - 5 V dc - - -40 °C - 1.8mm +85 °C
RS Stock No. 144-1109
BrandRS PRO
€1.872
Each (In a Pack of 5)
units
Clock 10 MHz CMOS ±50ppm Surface Mount SMD - 3.3 V dc - - -40 °C - 1.8mm +85 °C
RS Stock No. 144-1104
BrandRS PRO
€1.068
Each (In a Pack of 5)
units
Clock 50 MHz CMOS ±50ppm Surface Mount SMD - 1.8 V dc - - -20 °C - 1mm +70 °C
RS Stock No. 144-5015
BrandRS PRO
€0.838
Each (In a Pack of 5)
units
Clock 24 MHz CMOS ±50ppm Surface Mount SMD - 1.8 → 3.3 V dc - - -40 °C - 1mm +85 °C
RS Stock No. 144-1106
BrandRS PRO
€1.994
Each (In a Pack of 5)
units
Clock 20 MHz CMOS ±25ppm Surface Mount SMD - 3.3 V dc - - -40 °C - 1.8mm +85 °C
RS Stock No. 144-5006
BrandRS PRO
€4.01
Each (In a Pack of 2)
units
Clock 125 MHz HCMOS ±50ppm Surface Mount SMD - 3.3 V dc - - -40 °C - 1mm +85 °C
RS Stock No. 144-5012
BrandRS PRO
€0.792
Each (In a Pack of 5)
units
Clock 50 MHz CMOS ±50ppm Surface Mount SMD - 3.3 V dc - - -40 °C - 1mm +85 °C
RS Stock No. 144-1115
BrandRS PRO
€0.792
Each (In a Pack of 5)
units
Clock 3.68 MHz CMOS ±50ppm Surface Mount SMD - 3.3 V dc - - -40 °C - 1.8mm +85 °C
RS Stock No. 144-5017
BrandRS PRO
€2.004
Each (In a Pack of 5)
units
Clock 25 MHz CMOS ±50ppm Surface Mount SMD - 1.8 → 3.3 V dc - - -40 °C - 1mm +85 °C
RS Stock No. 144-1105
BrandRS PRO
€2.138
Each (In a Pack of 5)
units
Clock 32.768 kHz CMOS ±20ppm Surface Mount SMD - 3.3 V dc - - -40 °C - 1.8mm +85 °C
RS Stock No. 144-5005
BrandRS PRO
€2.674
Each (In a Pack of 5)
units
Clock 100 MHz HCMOS ±50ppm Surface Mount SMD - 3.3 V dc - - -40 °C - 1mm +85 °C
RS Stock No. 144-5011
BrandRS PRO
€1.872
Each (In a Pack of 5)
units
Clock 4 MHz HCMOS ±50ppm Surface Mount SMD - 3.3 V dc - - -10 °C - 1mm +70 °C
RS Stock No. 144-5016
BrandRS PRO
€1.43
Each (In a Pack of 5)
units
Clock 24 MHz CMOS ±50ppm Surface Mount SMD - 1.8 → 3.3 V dc - - -40 °C - 1mm +85 °C
RS Stock No. 144-5010
BrandRS PRO
€0.792
Each (In a Pack of 5)
units
Clock 25 MHz HCMOS ±50ppm Surface Mount SMD - 3.3 V dc - - -10 °C - 1mm +70 °C
RS Stock No. 144-1122
BrandRS PRO
€2.675
Each (In a Pack of 2)
units
Clock 156.25 MHz CMOS ±50ppm Surface Mount SMD - 3.3 V dc - - -40 °C - 1.8mm +85 °C
RS Stock No. 144-1110
BrandRS PRO
€0.792
Each (In a Pack of 5)
units
Clock 12 MHz CMOS ±50ppm Surface Mount SMD - 3.3 V dc - - -40 °C - 1.8mm +85 °C
RS Stock No. 144-5003
BrandRS PRO
€0.792
Each (In a Pack of 5)
units
Clock 20 MHz TTL ±50ppm Surface Mount SMD - 5 V dc - - -10 °C - 1.8mm +70 °C
RS Stock No. 144-1097
BrandRS PRO
€2.62
Each (In a Pack of 2)
units
Clock 32.768 kHz CMOS ±25ppm Surface Mount SMD - 3.3 V dc - - -40 °C - 0.8mm +85 °C