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 oscillators 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. 173-4698
Mfr. Part No.OV-7604-C7-STD-020
kr 21,453
Each (On a Reel of 3000)
Units
XO 32.768 kHz HCMOS ±20ppm Surface Mount SMD 1.2 V 5.5 V - - -40 °C - 1mm +85 °C
RS Stock No. 672-7647
Mfr. Part No.OV-7604-C7-STD-020
kr 39,28
Each
Units
Clock 32.768 kHz HCMOS ±20ppm Surface Mount SMD 1.2 V 5.5 V - - -40 °C - 1mm +85 °C
RS Stock No. 672-0163
Mfr. Part No.S533025-32.768K-X-15
BrandAKER
kr 59,52
Each
Units
Clock 32.768 kHz HCMOS ±25ppm Surface Mount SMD 3.14 V 3.46 V - - -40 °C - 1.3mm +85 °C
RS Stock No. 173-4705
Mfr. Part No.S533025-32.768K-X-15
BrandAKER
kr 41,284
Each (On a Reel of 250)
Units
XO 32.768 kHz HCMOS ±25ppm Surface Mount SMD 3.14 V 3.46 V - - -40 °C - 1.3mm +85 °C
RS Stock No. 667-6280
Mfr. Part No.Q3102JC01000111
BrandEpson
kr 30,11
Each
Units
XO 32.768 kHz CMOS ±50ppm Surface Mount SMD 1.5 V 5.5 V - - -40 °C - 2.65mm +85 °C
RS Stock No. 796-0574
Mfr. Part No.QX8T50B7.372800B50TT
BrandQANTEK
kr 20,44
Each
Units
XO 7.3728 MHz HCMOS ±50ppm Through Hole PDIP 4.5 V 5.5 V - - -40 °C - 5.08mm +85 °C
RS Stock No. 478-5064
Mfr. Part No.Q3102JF01000112
BrandEpson
kr 52,74
Each
Units
XO 32.768 kHz CMOS - Surface Mount JF 1.5 V 5.5 V - - -40 °C - 1.5mm +85 °C
RS Stock No. 173-4643
Mfr. Part No.QX8T50B7.372800B50TT
BrandQANTEK
kr 14,796
Each (In a Tube of 40)
Units
XO 7.3728 MHz HCMOS ±50ppm Through Hole PDIP 4.5 V 5.5 V - - -40 °C - 5.08mm +85 °C
RS Stock No. 173-2424
Mfr. Part No.Q33310F70003311
BrandEpson
kr 7,829
Each (On a Reel of 250)
Units
XO 24 MHz CMOS ±100ppm Surface Mount SMD 2.7 V 3.6 V - - -40 °C - 1.05mm +85 °C
RS Stock No. 667-6338
Mfr. Part No.Q33310F70003311
BrandEpson
kr 36,59
Each
Units
XO 24 MHz CMOS ±100ppm Surface Mount SMD 2.7 V 3.6 V - - -40 °C - 1.05mm +85 °C
RS Stock No. 173-2502
Mfr. Part No.Q3102JC01000111
BrandEpson
kr 10,854
Each (On a Reel of 250)
Units
XO 32.768 kHz CMOS ±50ppm Surface Mount SMD 1.5 V 5.5 V - - -40 °C - 2.65mm +85 °C
RS Stock No. 173-2510
Mfr. Part No.Q3102JF01000112
BrandEpson
kr 13,167
Each (On a Reel of 250)
Units
XO 32.768 kHz CMOS - Surface Mount JF 1.5 V 5.5 V - - -40 °C - 1.5mm +85 °C
RS Stock No. 173-5889
Mfr. Part No.QX8T50B3.686400B50TT
BrandQANTEK
kr 14,796
Each (In a Tube of 40)
Units
Clock 3.6864 MHz HCMOS ±50ppm Through Hole PDIP 4.5 V 5.5 V - - -40 °C - 5.08mm +85 °C
RS Stock No. 173-4641
Mfr. Part No.QX8T50B1.843200B50TT
BrandQANTEK
kr 15,98
Each (In a Tube of 40)
Units
XO 1.8432 MHz HCMOS ±50ppm Through Hole PDIP 4.5 V 5.5 V - - -40 °C - 5.08mm +85 °C
RS Stock No. 796-0561
Mfr. Part No.QX8T50B3.686400B50TT
BrandQANTEK
kr 18,34
Each
Units
XO 3.6864 MHz HCMOS ±50ppm Through Hole PDIP 4.5 V 5.5 V - - -40 °C - 5.08mm +85 °C
RS Stock No. 796-0558
Mfr. Part No.QX8T50B1.843200B50TT
BrandQANTEK
kr 19,74
Each
Units
XO 1.8432 MHz HCMOS ±50ppm Through Hole PDIP 4.5 V 5.5 V - - -40 °C - 5.08mm +85 °C
RS Stock No. 173-4645
Mfr. Part No.QX8T50B10.00000B50TT
BrandQANTEK
kr 14,796
Each (In a Tube of 40)
Units
XO 10 MHz HCMOS ±50ppm Through Hole PDIP 4.5 V 5.5 V - - -40 °C - 5.08mm +85 °C
RS Stock No. 478-5749
Mfr. Part No.Q3204DC21053300
BrandEpson
kr 60,72
Each
Units
XO 1 MHz CMOS ±50ppm Through Hole PDIP 4.5 V 5.5 V - - -20 °C - 5.3mm +70 °C
RS Stock No. 703-7125
Mfr. Part No.AS-14.7456-18-SMD
BrandRALTRON
kr 4,746
Each (In a Bag of 10)
Units
- - - ±50ppm Surface Mount HC-49-US SMD - - 2 12mm -20 °C 4.8mm 4.6mm +70 °C
RS Stock No. 796-0580
Mfr. Part No.QX8T50B10.00000B50TT
BrandQANTEK
kr 20,44
Each
Units
XO 10 MHz HCMOS ±50ppm Through Hole PDIP 4.5 V 5.5 V - - -40 °C - 5.08mm +85 °C
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