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. 813-6371
Mfr. Part No.QX133A24.00000B15R
BrandQANTEK
$4.73
Each
units
Clock 24MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 0.6mm 85°C
RS Stock No. 173-4679
Mfr. Part No.QX133A24.00000B15R
BrandQANTEK
$4.453
Each (On a Reel of 1000)
units
XO 24MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 0.6mm 85°C
RS Stock No. 173-5888
Mfr. Part No.QX8T50B40.00000B50TT
BrandQANTEK
$4.055
Each (In a Tube of 40)
units
Clock 40MHz HCMOS ±50ppm Through Hole PDIP - - - - -40°C - 5.08mm 85°C
RS Stock No. 796-0479
Mfr. Part No.QX14T50B4.000000B50TT
BrandQANTEK
$3.98
Each
units
XO 4MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 796-0637
Mfr. Part No.QX8T50B40.00000B50TT
BrandQANTEK
$3.62
Each
units
XO 40MHz HCMOS ±50ppm Through Hole PDIP - - - - -40°C - 5.08mm 85°C
RS Stock No. 173-5871
Mfr. Part No.QX14T50B4.000000B50TT
BrandQANTEK
$4.055
Each (In a Tube of 25)
units
Clock 4MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 813-6315
Mfr. Part No.QX333A50.00000B15R
BrandQANTEK
$3.43
Each
units
Clock 50MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 1.2mm 85°C
RS Stock No. 173-4611
Mfr. Part No.QX333A50.00000B15R
BrandQANTEK
$3.303
Each (On a Reel of 1000)
units
Clock 50MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 1.2mm 85°C
RS Stock No. 813-6365
Mfr. Part No.QX133A12.00000B15R
BrandQANTEK
$4.72
Each
units
Clock 12MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 0.6mm 85°C
RS Stock No. 173-5911
Mfr. Part No.QX133A12.00000B15R
BrandQANTEK
$4.453
Each (On a Reel of 1000)
units
Clock 12MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 0.6mm 85°C
RS Stock No. 173-5866
Mfr. Part No.QX533A12.00000B15R
BrandQANTEK
$3.377
Each (On a Reel of 1000)
units
Clock 12MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 1.3mm 85°C
RS Stock No. 813-6242
Mfr. Part No.QX533A12.00000B15R
BrandQANTEK
$3.47
Each
units
Clock 12MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 1.3mm 85°C
RS Stock No. 796-0463
Mfr. Part No.QX14T50B1.843200B50TT
BrandQANTEK
$3.58
Each
units
XO 1.8432MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 173-5868
Mfr. Part No.QX14T50B1.843200B50TT
BrandQANTEK
$4.055
Each (In a Tube of 25)
units
Clock 1.8432MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 813-6236
Mfr. Part No.QX733A50.00000B15R
BrandQANTEK
$3.17
Each
units
Clock 50MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 1.4mm 85°C
RS Stock No. 796-0555
Mfr. Part No.QX14T50B50.00000B50TT
BrandQANTEK
$3.98
Each
units
XO 50MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 173-5881
Mfr. Part No.QX14T50B50.00000B50TT
BrandQANTEK
$4.055
Each (In a Tube of 25)
units
Clock 50MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 173-5839
Mfr. Part No.QX733A50.00000B15R
BrandQANTEK
$3.043
Each (On a Reel of 1000)
units
Clock 50MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 1.4mm 85°C
RS Stock No. 173-4647
Mfr. Part No.QX8T50B9.830400B50TT
BrandQANTEK
$4.055
Each (In a Tube of 40)
units
XO 9.8304MHz HCMOS ±50ppm Through Hole PDIP - - - - -40°C - 5.08mm 85°C
RS Stock No. 796-0467
Mfr. Part No.QX14T50B2.457600B50TT
BrandQANTEK
$3.98
Each
units
XO 2.4576MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C