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. 173-2544
Mfr. Part No.Q3306JA21014001
BrandEpson
SGD3.066
Each (On a Reel of 250)
units
XO 32MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 4.45mm 70°C
RS Stock No. 478-6269
Mfr. Part No.Q3306JA21014001
BrandEpson
SGD5.88
Each
units
XO 32MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 4.45mm 70°C
RS Stock No. 667-6280
Mfr. Part No.Q3102JC01000111
BrandEpson
SGD4.05
Each
units
XO 32.768kHz CMOS ±50ppm Surface Mount SMD - - - - -40°C - 2.65mm 85°C
RS Stock No. 796-0498
Mfr. Part No.QX14T50B8.000000B50TT
BrandQANTEK
SGD5.69
Each
units
XO 8MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 173-2502
Mfr. Part No.Q3102JC01000111
BrandEpson
SGD1.909
Each (On a Reel of 250)
units
XO 32.768kHz CMOS ±50ppm Surface Mount SMD - - - - -40°C - 2.65mm 85°C
RS Stock No. 478-5272
Mfr. Part No.Q3309CA40000601
BrandEpson
SGD6.38
Each
units
XO 40MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 1.4mm 70°C
RS Stock No. 173-2598
Mfr. Part No.Q3309CA40000601
BrandEpson
SGD3.536
Each (On a Reel of 250)
units
XO 40MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 1.4mm 70°C
RS Stock No. 173-4632
Mfr. Part No.QX14T50B8.000000B50TT
BrandQANTEK
SGD3.37
Each (In a Tube of 25)
units
XO 8MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 111-0789
Mfr. Part No.KC2520B25.0000C10E00
BrandKYOCERA
SGD2.76
Each
units
Clock 25MHz CMOS ±50ppm Surface Mount CSMD - - - - -10°C - 0.7mm 70°C
RS Stock No. 767-5257
Mfr. Part No.5H14ET-8.000
BrandMERCURY
SGD3.72
Each
units
Clock 8MHz HCMOS, TTL ±50ppm Through Hole PDIP - - - - -40°C - 5.08mm 85°C
RS Stock No. 767-5263
Mfr. Part No.5H14ET-11.0592
BrandMERCURY
SGD3.50
Each
units
Clock 11.0592MHz HCMOS, TTL ±50ppm Through Hole PDIP - - - - -40°C - 5.08mm 85°C
RS Stock No. 671-9659
Mfr. Part No.S73305-25.000-X-15
BrandAKER
SGD3.74
Each
units
Clock 25MHz HCMOS ±50ppm Surface Mount SMD - - - - -40°C - 1.3mm 85°C
RS Stock No. 667-6338
Mfr. Part No.Q33310F70003311
BrandEpson
SGD5.45
Each
units
XO 24MHz CMOS ±100ppm Surface Mount SMD - - - - -40°C - 1.05mm 85°C
RS Stock No. 173-4590
Mfr. Part No.S73305-25.000-X-15
BrandAKER
SGD2.519
Each (On a Reel of 250)
units
XO 25MHz HCMOS ±50ppm Surface Mount SMD - - - - -40°C - 1.3mm 85°C
RS Stock No. 173-2424
Mfr. Part No.Q33310F70003311
BrandEpson
SGD1.377
Each (On a Reel of 250)
units
XO 24MHz CMOS ±100ppm Surface Mount SMD - - - - -40°C - 1.05mm 85°C
RS Stock No. 111-0678
Mfr. Part No.KC7050A10.0000C30E00
BrandKYOCERA
SGD3.76
Each
units
Clock 10MHz CMOS ±50ppm Surface Mount CSMD - - - - -10°C - 1.6mm 70°C
RS Stock No. 478-5238
Mfr. Part No.Q3309CA40010812
BrandEpson
SGD6.00
Each
units
XO 25MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 1.4mm 70°C
RS Stock No. 796-0482
Mfr. Part No.QX14T50B4.915200B50TT
BrandQANTEK
SGD4.76
Each
units
XO 4.9152MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 173-4630
Mfr. Part No.QX14T50B4.915200B50TT
BrandQANTEK
SGD3.24
Each (In a Tube of 25)
units
XO 4.9152MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 146-3954
Mfr. Part No.LFSPXO018036 831018036
BrandIQD
SGD1.793
Each (On a Reel of 1000)
units
Clock 10MHz HCMOS ±50ppm Surface Mount SMD - - - - 0°C - 1.4mm 70°C