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. 173-4699
Mfr. Part No.S73305-100.000-X-15
BrandAKER
kr 28,742
Each (On a Reel of 250)
Units
XO 100 MHz HCMOS ±50ppm Surface Mount SMD 2.97 V 3.63 V - - -40 °C - 1.3mm +85 °C
RS Stock No. 815-0588
Mfr. Part No.QTX333A24.5760B15TR
kr 19,34
Each
Units
Clock 24.576 MHz HCMOS, TTL ±25ppm Surface Mount SMD - 3.3 V - - -40 °C - 1.2mm +85 °C
RS Stock No. 672-0637
Mfr. Part No.3H53ET-32.000
BrandMERCURY
kr 9,36
Each
Units
Clock 32 MHz HCMOS ±50ppm Surface Mount SMD 3.135 V 3.465 V - - -40 °C - 1.2mm +85 °C
RS Stock No. 172-1752
Mfr. Part No.KC7050K27.0000C1GE00
BrandKYOCERA
kr 28,799
Each (On a Reel of 1000)
Units
Clock 27 MHz CMOS - Surface Mount SMD 1.6 V 3.63 V - - -40 °C - 1.2mm +85 °C
RS Stock No. 796-0514
Mfr. Part No.QX14T50B16.00000B50TT
BrandQANTEK
kr 20,44
Each
Units
XO 16 MHz HCMOS ±50ppm Through Hole DIP14 4.5 V 5.5 V - - -40 °C - 5.08mm +85 °C
RS Stock No. 813-6318
Mfr. Part No.QX233A8.000000B15R
BrandQANTEK
kr 19,34
Each
Units
Clock 8 MHz HCMOS ±25ppm Surface Mount SMD - 3.3 V - - -40 °C - 0.95mm +85 °C
RS Stock No. 178-2605
Mfr. Part No.CB3LV-3I-20M0000
BrandCTS
kr 12,363
Each (In a Pack of 10)
Units
Clock 20 MHz HCMOS, TTL ±50ppm Surface Mount SMD 3 V dc 3.6 V dc - - -40 °C - 1.8mm +85 °C
RS Stock No. 172-1898
Mfr. Part No.KC5032K1.84320C1GE00
BrandKYOCERA
kr 40,68
Each
Units
Clock 1.84 MHz CMOS - Surface Mount SMD 1.6 V 3.63 V - - -40 °C - 1.2mm +85 °C
RS Stock No. 173-4644
Mfr. Part No.QX8T50B4.915200B50TT
BrandQANTEK
kr 14,796
Each (In a Tube of 40)
Units
XO 4.9152 MHz HCMOS ±50ppm Through Hole PDIP 4.5 V 5.5 V - - -40 °C - 5.08mm +85 °C
RS Stock No. 178-1931
Mfr. Part No.636L3I020M00000
BrandCTS
kr 8,684
Each (On a Reel of 1000)
Units
Clock 20 MHz HCMOS, TTL ±50ppm Surface Mount SMD 2.97 V dc 3.63 V dc - - -40 °C - 1.3mm +85 °C
RS Stock No. 173-4635
Mfr. Part No.QX14T50B16.38400B50TT
BrandQANTEK
kr 14,816
Each (In a Tube of 25)
Units
XO 16.384 MHz HCMOS ±50ppm Through Hole DIP14 4.5 V 5.5 V - - -40 °C - 5.08mm +85 °C
RS Stock No. 815-0591
Mfr. Part No.QTX333A27.0000B15TR
kr 9,11
Each
Units
Clock 27 MHz HCMOS, TTL ±25ppm Surface Mount SMD - 3.3 V - - -40 °C - 1.2mm +85 °C
RS Stock No. 178-2036
Mfr. Part No.638P12503I3T
BrandCTS
kr 44,715
Each (On a Reel of 1000)
Units
Clock 125 MHz LVPECL ±50ppm Surface Mount SMD 3.13 V dc 3.46 V dc - - -40 °C - 2mm +85 °C
RS Stock No. 111-0759
Mfr. Part No.KC5032A33.3333CM0E00
BrandKYOCERA
kr 34,39
Each
Units
- 33.3333 MHz CMOS ±50ppm Surface Mount CSMD 1.6 V 5.5 V - - -10 °C - 1mm +70 °C
RS Stock No. 171-0298
Mfr. Part No.AX7MCF3-156.2500C
BrandAbracon
kr 39,23
Each
Units
XO 156.25 MHz LVDS ±25ppm Surface Mount 6-SMD Compatible - 1.8 V - - -40 °C - 1.9mm +85 °C
RS Stock No. 178-2641
Mfr. Part No.CB3LV-3I-7M3728
BrandCTS
kr 12,363
Each (In a Pack of 10)
Units
Clock 7.372 MHz HCMOS, TTL ±50ppm Surface Mount SMD 3 V dc 3.6 V dc - - -40 °C - 1.8mm +85 °C
RS Stock No. 173-4700
Mfr. Part No.XO22050UITA-16.000
BrandEuroquartz
kr 20,10
Each (On a Reel of 1000)
Units
XO 16 MHz HCMOS, LSTTL ±50ppm Surface Mount SMD 3.135 V 3.465 V - - -40 °C - 0.95mm +85 °C
RS Stock No. 146-3977
Mfr. Part No.LFSPXO025166 831025166
BrandIQD
kr 8,403
Each (On a Reel of 1000)
Units
Clock 48 MHz CMOS ±50ppm Surface Mount SMD - 3.3 V - - -40 °C - 1.2mm +85 °C
RS Stock No. 173-2358
Mfr. Part No.X1G004171001612
BrandEPSON
kr 6,738
Each (On a Reel of 250)
Units
XO 10 MHz CMOS - Surface Mount - 1.6 V 3.6 V - - -40 °C - 0.8mm +85 °C, +105 °C
RS Stock No. 478-8675
Mfr. Part No.LFSPXO018040 831018040
BrandIQD
kr 23,13
Each
Units
XO 32 MHz HCMOS ±50ppm Surface Mount SMD 2.97 V 3.63 V - - 0 °C - 1.5mm +70 °C
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