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. 144-5003
BrandRS PRO
PHP105.12
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. 144-5015
BrandRS PRO
PHP125.00
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. 144-1099
BrandRS PRO
PHP158.40
Each (In a Pack of 5)
units
Clock 32.768 kHz CMOS ±25ppm Surface Mount SMD - 1.8 V dc - - -40 °C - 1mm +85 °C
RS Stock No. 144-1108
BrandRS PRO
PHP124.40
Each (In a Pack of 5)
units
Clock 32 MHz CMOS ±25ppm Surface Mount SMD - 3.3 V dc - - -40 °C - 1.8mm +85 °C
RS Stock No. 144-5009
BrandRS PRO
PHP116.80
Each (In a Pack of 5)
units
Clock 25 MHz HCMOS ±50ppm Surface Mount SMD - 3.3 V dc - - -40 °C - 1mm +85 °C
RS Stock No. 144-5013
BrandRS PRO
PHP167.00
Each (In a Pack of 2)
units
Clock 100 MHz CMOS ±50ppm Surface Mount SMD - 1.8 → 3.3 V dc - - -40 °C - 1mm +85 °C
RS Stock No. 144-1097
BrandRS PRO
PHP206.55
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
RS Stock No. 144-5005
BrandRS PRO
PHP166.80
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. 144-5008
BrandRS PRO
PHP116.80
Each (In a Pack of 5)
units
Clock 24 MHz HCMOS ±50ppm Surface Mount SMD - 3.3 V dc - - -40 °C - 1mm +85 °C
RS Stock No. 144-5004
BrandRS PRO
PHP116.80
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. 144-5007
BrandRS PRO
PHP116.80
Each (In a Pack of 5)
units
Clock 16 MHz HCMOS ±50ppm Surface Mount SMD - 3.3 V dc - - -40 °C - 1mm +85 °C
RS Stock No. 144-1103
BrandRS PRO
PHP158.40
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. 144-1118
BrandRS PRO
PHP166.80
Each (In a Pack of 5)
units
Clock 100 MHz CMOS ±50ppm Surface Mount SMD - 3.3 V dc - - -40 °C - 1.8mm +85 °C
RS Stock No. 144-1100
BrandRS PRO
PHP166.32
Each (In a Pack of 5)
units
Clock 32.768 kHz CMOS ±30ppm Surface Mount SMD - 3.3 V dc - - -40 °C - 1mm +85 °C
RS Stock No. 144-5012
BrandRS PRO
PHP116.80
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. 144-1112
BrandRS PRO
PHP116.80
Each (In a Pack of 5)
units
Clock 24.57 MHz CMOS ±50ppm Surface Mount SMD - 3.3 V dc - - -40 °C - 1.8mm +85 °C
RS Stock No. 144-5016
BrandRS PRO
PHP125.00
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. 144-1124
BrandRS PRO
PHP116.80
Each (In a Pack of 5)
units
Clock 10 MHz CMOS ±50ppm Surface Mount SMD - 5.5 V dc - - -10 °C - 1.8mm +70 °C
RS Stock No. 144-1119
BrandRS PRO
PHP166.80
Each (In a Pack of 5)
units
Clock 100 MHz CMOS ±50ppm Surface Mount SMD - 3.3 V dc - - -10 °C - 1.8mm +70 °C
RS Stock No. 144-1105
BrandRS PRO
PHP120.06
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
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