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. 767-5279
Mfr. Part No.5H14ET-20.000
BrandMERCURY
MYR12.74
Each
units
Clock 20MHz HCMOS, TTL ±50ppm Through Hole PDIP - - - - -40°C - 5.08mm 85°C
RS Stock No. 146-3919
Mfr. Part No.LFSPXO018044 831018044
BrandIQD
MYR4.15
Each (On a Reel of 1000)
units
Clock 50MHz HCMOS ±50ppm Surface Mount SMD - - - - 0°C - 1.4mm 70°C
RS Stock No. 796-0542
Mfr. Part No.QX14T50B40.00000B50TT
BrandQANTEK
MYR11.14
Each
units
XO 40MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 173-5879
Mfr. Part No.QX14T50B40.00000B50TT
BrandQANTEK
MYR9.01
Each (In a Tube of 25)
units
Clock 40MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 767-5282
Mfr. Part No.5H14ET-40.000
BrandMERCURY
MYR12.21
Each
units
Clock 40MHz HCMOS, TTL ±50ppm Through Hole PDIP - - - - -40°C - 5.08mm 85°C
RS Stock No. 148-4318
Mfr. Part No.LFSPXO018044 831018044
BrandIQD
MYR8.47
Each (In a Pack of 10)
units
Clock 50MHz HCMOS ±50ppm Surface Mount SMD - - - - 0°C - 1.4mm 70°C
RS Stock No. 478-6269
Mfr. Part No.Q3306JA21014001
BrandEpson
MYR31.43
Each
units
XO 32MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 4.45mm 70°C
RS Stock No. 173-2544
Mfr. Part No.Q3306JA21014001
BrandEpson
MYR10.057
Each (On a Reel of 250)
units
XO 32MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 4.45mm 70°C
RS Stock No. 173-2586
Mfr. Part No.Q3309CA40013301
BrandEpson
MYR17.196
Each (On a Reel of 250)
units
XO 10MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 1.4mm 70°C
RS Stock No. 796-0505
Mfr. Part No.QX14T50B12.00000B50TT
BrandQANTEK
MYR11.14
Each
units
XO 12MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 478-5115
Mfr. Part No.Q3309CA40013301
BrandEpson
MYR20.94
Each
units
XO 10MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 1.4mm 70°C
RS Stock No. 707-9703
Mfr. Part No.COM2305-14.7456-EXT
BrandRALTRON
MYR12.31
Each
units
XO 14.7456MHz HCMOS ±50ppm Surface Mount SMD - - - - -40°C - 1mm 85°C
RS Stock No. 173-5876
Mfr. Part No.QX14T50B12.00000B50TT
BrandQANTEK
MYR9.01
Each (In a Tube of 25)
units
Clock 12MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 767-5232
Mfr. Part No.5H14ET-1.8432
BrandMERCURY
MYR11.54
Each
units
Clock 1.8432MHz HCMOS, TTL ±50ppm Through Hole PDIP - - - - -40°C - 5.08mm 85°C
RS Stock No. 672-0599
Mfr. Part No.3H53ET-8.000
BrandMERCURY
MYR10.54
Each
units
Clock 8MHz HCMOS ±50ppm Surface Mount SMD - - - - -40°C - 1.2mm 85°C
RS Stock No. 111-0787
Mfr. Part No.KC2520B24.0000C10E00
BrandKYOCERA
MYR10.41
Each
units
Clock 24MHz CMOS ±50ppm Surface Mount CSMD - - - - -10°C - 0.7mm 70°C
RS Stock No. 111-0702
Mfr. Part No.KC7050A6.14400C30E00
BrandKYOCERA
MYR13.42
Each
units
Clock 6.144MHz CMOS ±50ppm Surface Mount CSMD - - - - -10°C - 1.6mm 70°C
RS Stock No. 173-2466
Mfr. Part No.Q33519E40003212
BrandEpson
MYR7.807
Each (On a Reel of 250)
units
XO 10MHz CMOS ±50ppm Surface Mount SMD - - - - -40°C - 1.05mm 85°C
RS Stock No. 796-0599
Mfr. Part No.QX8T50B12.00000B50TT
BrandQANTEK
MYR11.41
Each
units
XO 12MHz HCMOS ±50ppm Through Hole PDIP - - - - -40°C - 5.08mm 85°C
RS Stock No. 703-7129
Mfr. Part No.AS-16.000-18-SMD
BrandRALTRON
MYR1.72
Each (In a Bag of 10)
units
- - - ±50ppm Surface Mount HC-49-US SMD - - 2 12mm -20°C 4.8mm 4.6mm 70°C