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. 173-5878
Mfr. Part No.QX14T50B25.00000B50TT
BrandQANTEK
€1.486
Each (In a Tube of 25)
units
Clock 25MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 796-0536
Mfr. Part No.QX14T50B25.00000B50TT
BrandQANTEK
€1.84
Each
units
XO 25MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 173-4579
Mfr. Part No.QX733A24.00000B15R
BrandQANTEK
€1.313
Each (On a Reel of 1000)
units
Clock 24MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 1.4mm 85°C
RS Stock No. 813-6214
Mfr. Part No.QX733A24.00000B15R
BrandQANTEK
€1.61
Each
units
Clock 24MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 1.4mm 85°C
RS Stock No. 796-0514
Mfr. Part No.QX14T50B16.00000B50TT
BrandQANTEK
€2.05
Each
units
XO 16MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 173-5877
Mfr. Part No.QX14T50B16.00000B50TT
BrandQANTEK
€1.486
Each (In a Tube of 25)
units
Clock 16MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 796-0552
Mfr. Part No.QX8T50B2.457600B50TT
BrandQANTEK
€2.05
Each
units
XO 2.4576MHz HCMOS ±50ppm Through Hole PDIP - - - - -40°C - 5.08mm 85°C
RS Stock No. 173-4640
Mfr. Part No.QX8T50B2.457600B50TT
BrandQANTEK
€1.484
Each (In a Tube of 40)
units
XO 2.4576MHz HCMOS ±50ppm Through Hole PDIP - - - - -40°C - 5.08mm 85°C
RS Stock No. 173-4682
Mfr. Part No.QX133A50.00000B15R
BrandQANTEK
€1.953
Each (On a Reel of 1000)
units
XO 50MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 0.6mm 85°C
RS Stock No. 173-4643
Mfr. Part No.QX8T50B7.372800B50TT
BrandQANTEK
€1.484
Each (In a Tube of 40)
units
XO 7.3728MHz HCMOS ±50ppm Through Hole PDIP - - - - -40°C - 5.08mm 85°C
RS Stock No. 813-6318
Mfr. Part No.QX233A8.000000B15R
BrandQANTEK
€1.94
Each
units
Clock 8MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 0.95mm 85°C
RS Stock No. 796-0549
Mfr. Part No.QX14T50B32.00000B50TT
BrandQANTEK
€1.84
Each
units
XO 32MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 173-5912
Mfr. Part No.QX133A32.00000B15R
BrandQANTEK
€2.074
Each (On a Reel of 1000)
units
Clock 32MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 0.6mm 85°C
RS Stock No. 173-4671
Mfr. Part No.QX233A20.00000B15R
BrandQANTEK
€1.562
Each (On a Reel of 1000)
units
Clock 20MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 0.95mm 85°C
RS Stock No. 796-0463
Mfr. Part No.QX14T50B1.843200B50TT
BrandQANTEK
€1.84
Each
units
XO 1.8432MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 173-4581
Mfr. Part No.QX733A24.57600B15R
BrandQANTEK
€0.802
Each (On a Reel of 1000)
units
Clock 24.576MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 1.4mm 85°C
RS Stock No. 173-4646
Mfr. Part No.QX8T50B8.000000B50TT
BrandQANTEK
€1.484
Each (In a Tube of 40)
units
XO 8MHz HCMOS ±50ppm Through Hole PDIP - - - - -40°C - 5.08mm 85°C
RS Stock No. 173-5888
Mfr. Part No.QX8T50B40.00000B50TT
BrandQANTEK
€1.484
Each (In a Tube of 40)
units
Clock 40MHz HCMOS ±50ppm Through Hole PDIP - - - - -40°C - 5.08mm 85°C
RS Stock No. 173-5884
Mfr. Part No.QX8T50B14.74560B50TT
BrandQANTEK
€1.484
Each (In a Tube of 40)
units
Clock 14.7456MHz HCMOS ±50ppm Through Hole PDIP - - - - -40°C - 5.08mm 85°C
RS Stock No. 173-4608
Mfr. Part No.QX333A24.00000B15R
BrandQANTEK
€1.367
Each (On a Reel of 1000)
units
Clock 24MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 1.2mm 85°C