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. 478-5187
Mfr. Part No.Q3309CA40041701
BrandEpson
MYR21.55
Each
units
XO 1MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 1.4mm 70°C
RS Stock No. 767-5323
Mfr. Part No.5H8ET-60.000
BrandMERCURY
MYR22.08
Each
units
Clock 60MHz HCMOS, TTL ±50ppm Through Hole PDIP - - - - -40°C - 5.08mm 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. 148-5356
Mfr. Part No.LFSPXO018541 831018541
BrandIQD
MYR10.15
Each (In a Pack of 10)
units
Clock 24MHz HCMOS ±50ppm Surface Mount SMD - - - - 0°C - 1.4mm 70°C
RS Stock No. 707-9662
Mfr. Part No.CO4305-24.000-EXT
BrandRALTRON
MYR11.38
Each
units
Clock 24MHz CMOS, TTL ±50ppm Surface Mount SMD - - - - -40°C - 1.8mm 85°C
RS Stock No. 111-0709
Mfr. Part No.KC7050A16.0000C50D00
BrandKYOCERA
MYR14.12
Each
units
Clock 16MHz CMOS ±50ppm Surface Mount CSMD - - - - -10°C - 1.6mm 70°C
RS Stock No. 173-4662
Mfr. Part No.S33305-25.000-X
BrandAKER
MYR7.504
Each (On a Reel of 250)
units
XO 25MHz CMOS ±50ppm Surface Mount SMD - - - - -40°C - 1.1mm 85°C
RS Stock No. 178-1956
Mfr. Part No.CB3-3I-25M0000
BrandCTS
MYR5.931
Each (On a Reel of 1000)
units
Clock 25MHz HCMOS, TTL ±50ppm Surface Mount SMD 4.5V dc 5.5V dc - - -40°C - 1.8mm 85°C
RS Stock No. 111-0771
Mfr. Part No.KC2520B4.00000C10E00
BrandKYOCERA
MYR17.68
Each
units
Clock 4MHz CMOS ±50ppm Surface Mount CSMD - - - - -10°C - 0.7mm 70°C
RS Stock No. 186-3366
Mfr. Part No.MXO-11A 20.0000MHz
BrandMITADENPA
MYR109.27
Each
units
- 20MHz CMOS, TTL ±25ppm Through Hole - - 5V dc - - -10°C - 5mm 70°C
RS Stock No. 148-5671
Mfr. Part No.LFSPXO018035 831018035
BrandIQD
MYR7.224
Each (In a Pack of 10)
units
Clock 50MHz HCMOS, TTL ±50ppm Surface Mount SMD - - - - 0°C - 1.4mm 70°C
RS Stock No. 178-2585
Mfr. Part No.CB3-3I-1M8432
BrandCTS
MYR7.578
Each (In a Pack of 5)
units
Clock 1.843MHz HCMOS, TTL ±50ppm Surface Mount SMD 4.5V dc 5.5V dc - - -40°C - 1.8mm 85°C
RS Stock No. 172-1666
Mfr. Part No.KC3225K22.5792C1GE00
BrandKYOCERA
MYR19.01
Each (On a Reel of 2000)
units
Clock 22.57MHz CMOS - Surface Mount SMD - - - - -40°C - 0.8mm 85°C
RS Stock No. 173-5868
Mfr. Part No.QX14T50B1.843200B50TT
BrandQANTEK
MYR9.01
Each (In a Tube of 25)
units
Clock 1.8432MHz HCMOS ±50ppm Through Hole DIP14 - - - - -40°C - 5.08mm 85°C
RS Stock No. 172-1762
Mfr. Part No.KC7050K66.6667C1GE00
BrandKYOCERA
MYR16.859
Each (On a Reel of 1000)
units
Clock 66.66MHz CMOS - Surface Mount SMD - - - - -40°C - 1.2mm 85°C
RS Stock No. 173-2376
Mfr. Part No.X1G004171003212
BrandEPSON
MYR5.174
Each (On a Reel of 250)
units
XO 24.576MHz CMOS - Surface Mount - - - - - -40°C - 0.8mm +105°C, +85°C
RS Stock No. 178-2614
Mfr. Part No.CB3LV-5I-25M0000
BrandCTS
MYR8.004
Each (In a Pack of 5)
units
Clock 25MHz HCMOS, TTL ±25ppm Surface Mount SMD 3V dc 3.6V dc - - -40°C - 1.8mm 85°C
RS Stock No. 186-3342
Mfr. Part No.MXO-49A-I 5.0000MHz
BrandMITADENPA
MYR167.10
Each
units
- 5MHz CMOS, TTL ±25ppm Through Hole - - 5V dc - - -10°C - 6.5mm 70°C
RS Stock No. 478-8524
Mfr. Part No.LFSPXO009439
BrandIQD
MYR14.84
Each
units
XO 106.25MHz HCMOS ±50ppm Surface Mount SMD - - - - 0°C - 1.5mm 70°C
RS Stock No. 178-2656
Mfr. Part No.CB3LV-3I-30M0000
BrandCTS
MYR6.404
Each (In a Pack of 10)
units
Clock 30MHz HCMOS, TTL ±50ppm Surface Mount SMD 3V dc 3.6V dc - - -40°C - 1.8mm 85°C