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. 171-2779
Mfr. Part No.ASE-24.000MHZ-LC-T
BrandAbracon
TWD52.00
Each (In a Pack of 5)
units
XO 24MHz CMOS ±50ppm Surface Mount SMD - - - - -40°C - 1.2mm 85°C
RS Stock No. 172-1878
Mfr. Part No.KC5032K16.0000C1GE00
BrandKYOCERA
TWD142.00
Each
units
Clock 16MHz CMOS - Surface Mount SMD - - - - -40°C - 1.2mm 85°C
RS Stock No. 173-4694
Mfr. Part No.S51805-12.000-X
BrandAKER
TWD128.80
Each (On a Reel of 250)
units
XO 12MHz CMOS ±50ppm Surface Mount SMD - - - - -40°C - 0.95mm 85°C
RS Stock No. 178-1973
Mfr. Part No.CB3LV-3I-14M7456
BrandCTS
TWD28.00
Each (On a Reel of 1000)
units
Clock 14.745MHz HCMOS, TTL ±50ppm Surface Mount SMD 3V dc 3.6V dc - - -40°C - 1.8mm 85°C
RS Stock No. 478-5862
Mfr. Part No.Q3204DC21012600
BrandEpson
TWD122.00
Each
units
XO 4.096MHz CMOS ±50ppm Through Hole PDIP - - - - -20°C - 5.3mm 70°C
RS Stock No. 173-2551
Mfr. Part No.Q3204DC21026700
BrandEPSON
TWD76.00
Each (In a Tube of 35)
units
XO 12MHz CMOS ±50ppm Through Hole PDIP - - - - -20°C - 5.3mm 70°C
RS Stock No. 172-1651
Mfr. Part No.KC3225K3.68640C1GE00
BrandKYOCERA
TWD128.20
Each (On a Reel of 2000)
units
Clock 3.68MHz CMOS - Surface Mount SMD - - - - -40°C - 0.8mm 85°C
RS Stock No. 173-2426
Mfr. Part No.Q33310F70003711
BrandEpson
TWD30.60
Each (On a Reel of 250)
units
XO 4MHz CMOS ±100ppm Surface Mount SMD - - - - -40°C - 1.05mm 85°C
RS Stock No. 703-2442
Mfr. Part No.ASD3-25.000MHz-EC
BrandAbracon
TWD196.00
Each
units
Clock 25MHz HCMOS ±50ppm Surface Mount SMD - - - - -20°C - 0.8mm 70°C
RS Stock No. 173-4608
Mfr. Part No.QX333A24.00000B15R
BrandQANTEK
TWD56.10
Each (On a Reel of 1000)
units
Clock 24MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 1.2mm 85°C
RS Stock No. 171-2336
Mfr. Part No.ASE-25.000MHZ-LR-T
BrandAbracon
TWD41.60
Each (On a Reel of 1000)
units
XO 25MHz CMOS ±25ppm Surface Mount SMD - - - - -40°C - 1.2mm 85°C
RS Stock No. 667-6690
Mfr. Part No.Q3851CA00000912
BrandEpson
TWD607.00
Each
units
XO 125MHz CMOS ±50ppm Surface Mount SMD - - - - -10°C - 1.2mm 70°C
RS Stock No. 904-7786
Mfr. Part No.X1G004481000212
BrandEPSON
TWD161.00
Each
units
XO 24MHz CMOS - Surface Mount - - - - - - - 1.3mm -
RS Stock No. 178-1953
Mfr. Part No.CB3-3I-12M0000
BrandCTS
TWD30.20
Each (On a Reel of 1000)
units
Clock 12MHz HCMOS, TTL ±50ppm Surface Mount SMD 4.5V dc 5.5V dc - - -40°C - 1.8mm 85°C
New
RS Stock No. 205-3475
Mfr. Part No.X1G003931001412
BrandEpson
TWD172.00
Each
units
Clock Oscillator 156.25MHz CMOS ± 50ppm - Reel - - - - - - - -
RS Stock No. 178-2519
Mfr. Part No.CB3LV-3I-12M0000
BrandCTS
TWD42.90
Each (In a Pack of 10)
units
Clock 12MHz HCMOS, TTL ±50ppm Surface Mount SMD 3V dc 3.6V dc - - -40°C - 1.8mm 85°C
RS Stock No. 478-5727
Mfr. Part No.Q3204DC21000300
BrandEpson
TWD122.00
Each
units
XO 16MHz CMOS ±50ppm Through Hole PDIP - - - - -20°C - 5.3mm 70°C
RS Stock No. 478-5878
Mfr. Part No.Q3204DC21000100
BrandEpson
TWD98.00
Each
units
XO 4.9152MHz CMOS ±50ppm Through Hole PDIP - - - - -20°C - 5.3mm 70°C
RS Stock No. 173-2592
Mfr. Part No.Q3309CA40013701
BrandEpson
TWD78.50
Each (On a Reel of 250)
units
XO 2.048MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 1.4mm 70°C
RS Stock No. 173-2552
Mfr. Part No.Q3204DC21028100
BrandEpson
TWD68.20
Each (In a Tube of 35)
units
XO 16.384MHz CMOS ±50ppm Through Hole PDIP - - - - -20°C - 5.3mm 70°C