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 Frequency Stability Package Type Minimum Operating Supply Voltage Output Level Maximum Operating Supply Voltage Mounting Type Minimum Operating Temperature Height Maximum Operating Temperature Dimensions Priced to Clear Load Capacitance
RS Stock No. 703-2398
Mfr. Part No.ASE-50.000MHz-LC
BrandAbracon
£2.05
Each
Units
Clock 50 MHz ±50ppm SMD 3.14 V CMOS 3.46 V Surface Mount -40 °C 1mm +85 °C 3.2 x 2.5 x 1mm - -
RS Stock No. 703-2350
Mfr. Part No.ASE-16.000MHz-LC
BrandAbracon
£2.55
Each
Units
Clock 16 MHz ±50ppm SMD 3.14 V CMOS 3.46 V Surface Mount -40 °C 1mm +85 °C 3.2 x 2.5 x 1mm - -
RS Stock No. 703-2133
Mfr. Part No.ASV-29.4912MHz-EJ
BrandAbracon
£1.762
Each (In a Bag of 10)
Units
XO 29.4912 MHz ±20ppm SMD 3 V HCMOS, TTL 3.6 V Surface Mount -20 °C 1.8mm +70 °C 7 x 5 x 1.8mm - -
RS Stock No. 703-2174
Mfr. Part No.ASFL1-11.0592MHz-EK
BrandAbracon
£0.71
Each
Units
Clock 11.0592 MHz ±30ppm SMD 2.97 V HCMOS, TTL 3.63 V Surface Mount -20 °C 1.3mm +70 °C 5 x 3.2 x 1.3mm - -
RS Stock No. 703-2385
Mfr. Part No.ASE-30.000MHz-LC
BrandAbracon
£2.20
Each
Units
Clock 30 MHz ±50ppm SMD 3.14 V CMOS 3.46 V Surface Mount -40 °C 1mm +85 °C 3.2 x 2.5 x 1mm - -
RS Stock No. 703-2206
Mfr. Part No.ASFL1-20.000MHz-EK
BrandAbracon
£0.72
Each
Units
Clock 20 MHz ±30ppm SMD 2.97 V HCMOS, TTL 3.63 V Surface Mount -20 °C 1.3mm +70 °C 5 x 3.2 x 1.3mm - -
RS Stock No. 703-2338
Mfr. Part No.ASE-8.000MHz-LC
BrandAbracon
£2.16
Each
Units
Clock 8 MHz ±50ppm SMD 3.14 V CMOS 3.46 V Surface Mount -40 °C 1mm +85 °C 3.2 x 2.5 x 1mm - -
RS Stock No. 703-2414
Mfr. Part No.ASE3-25.000MHz-K
BrandAbracon
£1.31
Each
Units
Clock 25 MHz ±30ppm SMD 1.71 V CMOS 1.89 V Surface Mount -10 °C 1.2mm +70 °C 3.2 x 2.5 x 1.2mm - -
RS Stock No. 703-2183
Mfr. Part No.ASFL1-12.000MHz-EK
BrandAbracon
£0.72
Each
Units
Clock 12 MHz ±30ppm SMD 2.97 V HCMOS, TTL 3.63 V Surface Mount -20 °C 1.3mm +70 °C 5 x 3.2 x 1.3mm - -
RS Stock No. 703-2091
Mfr. Part No.ASV-11.0592MHz-EJ
BrandAbracon
£1.401
Each (In a Bag of 10)
Units
XO 11.0592 MHz ±20ppm SMD 3 V HCMOS, TTL 3.6 V Surface Mount -20 °C 1.8mm +70 °C 7 x 5 x 1.8mm - -
RS Stock No. 703-2155
Mfr. Part No.ASV-48.000MHz-EJ
BrandAbracon
£1.832
Each (In a Bag of 10)
Units
XO 48 MHz ±20ppm SMD 3 V HCMOS, TTL 3.6 V Surface Mount -20 °C 1.8mm +70 °C 7 x 5 x 1.8mm - -
RS Stock No. 703-2357
Mfr. Part No.ASE-14.7456MHz-LC
BrandAbracon
£1.31
Each
Units
Clock 14.7456 MHz ±50ppm SMD 3.14 V CMOS 3.46 V Surface Mount -40 °C 1mm +85 °C 3.2 x 2.5 x 1mm - -
RS Stock No. 703-2102
Mfr. Part No.ASV-16.000MHZ-E-T
BrandAbracon
£1.108
Each (In a Bag of 10)
Units
XO 16 MHz ±20ppm SMD 3 V HCMOS, TTL 3.6 V Surface Mount -20 °C 1.8mm +70 °C 7 x 5 x 1.8mm - -
RS Stock No. 703-2442
Mfr. Part No.ASD3-25.000MHz-EC
BrandAbracon
£0.48
Each
Units
Clock 25 MHz ±50ppm SMD 1.71 V HCMOS 1.89 V Surface Mount -20 °C 0.8mm +70 °C 2.5 x 2 x 0.8mm - -
RS Stock No. 703-2449
Mfr. Part No.ASD3-50.000MHz-EC
BrandAbracon
£1.00
Each
Units
Clock 50 MHz ±50ppm SMD 1.71 V HCMOS 1.89 V Surface Mount -20 °C 0.8mm +70 °C 2.5 x 2 x 0.8mm - -
RS Stock No. 703-2085
Mfr. Part No.ASV-7.3728MHz-EJ
BrandAbracon
£0.644
Each (In a Bag of 10)
Units
XO 7.3728 MHz ±20ppm SMD 3 V HCMOS, TTL 3.6 V Surface Mount -20 °C 1.8mm +70 °C 7 x 5 x 1.8mm - -
RS Stock No. 703-2256
Mfr. Part No.ASFL3-7.3728MHz-EK
BrandAbracon
£0.63
Each
Units
Clock 7.3728 MHz ±30ppm SMD 1.62 V CMOS 1.98 V Surface Mount -20 °C 1.1mm +70 °C 5 x 3.2 x 1.1mm - -
RS Stock No. 171-0376
Mfr. Part No.AX7PBF1-156.2500C
BrandAbracon
£3.68
Each
Units
XO 156.25 MHz ±25ppm 6-SMD Compatible - LVPECL 2.5 V Surface Mount - 40 °C 1.9mm +85 °C 7 x 5 x 1.9mm - -
RS Stock No. 171-0176
Mfr. Part No.AX7DAF1-100.0000C
BrandAbracon
£5.037
Each (On a Tape of 50)
Units
XO 100 MHz ±25ppm 6-SMD Compatible - LVDS 3.3 V Surface Mount - 40 °C 1.9mm +85 °C 7 x 5 x 1.9mm - -
RS Stock No. 180-7710
Mfr. Part No.ASAKMPD1-32.768KHZ-T3
BrandAbracon
£2.43
Each (On a Reel of 100)
Units
XO 32.76 kHz ±10ppm SMD 1.6 V CMOS 3.63 V Surface Mount -40 °C 0.6mm +85 °C 1.6 x 1.2 x 0.6mm - -