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. 478-5749
Mfr. Part No.Q3204DC21053300
BrandEpson
$5.80
Each
units
XO 1MHz CMOS ±50ppm Through Hole PDIP - - - - -20°C - 5.3mm 70°C
RS Stock No. 173-2555
Mfr. Part No.Q3204DC21053300
BrandEpson
$3.275
Each (In a Tube of 35)
units
XO 1MHz CMOS ±50ppm Through Hole PDIP - - - - -20°C - 5.3mm 70°C
RS Stock No. 173-2553
Mfr. Part No.Q3204DC21000300
BrandEpson
$3.275
Each (In a Tube of 35)
units
XO 16MHz CMOS ±50ppm Through Hole PDIP - - - - -20°C - 5.3mm 70°C
RS Stock No. 173-2558
Mfr. Part No.Q3204DC21044200
BrandEpson
$3.275
Each (In a Tube of 35)
units
XO 24MHz CMOS ±50ppm Through Hole PDIP - - - - -20°C - 5.3mm 70°C
RS Stock No. 478-5727
Mfr. Part No.Q3204DC21000300
BrandEpson
$6.11
Each
units
XO 16MHz CMOS ±50ppm Through Hole PDIP - - - - -20°C - 5.3mm 70°C
RS Stock No. 478-5783
Mfr. Part No.Q3204DC21044200
BrandEpson
$4.98
Each
units
XO 24MHz CMOS ±50ppm Through Hole PDIP - - - - -20°C - 5.3mm 70°C
RS Stock No. 672-7647
Mfr. Part No.OV-7604-C7-STD-020
$7.01
Each
units
Clock 32.768kHz HCMOS ±20ppm Surface Mount SMD - - - - -40°C - 1mm 85°C
RS Stock No. 173-4698
Mfr. Part No.OV-7604-C7-STD-020
$4.00
Each (On a Reel of 3000)
units
XO 32.768kHz HCMOS ±20ppm Surface Mount SMD - - - - -40°C - 1mm 85°C
RS Stock No. 671-9864
Mfr. Part No.S71805-14.31818-X-15
BrandAKER
$2.80
Each
units
Clock 14.3182MHz HCMOS ±50ppm Surface Mount SMD - - - - -40°C - 1.3mm 85°C
RS Stock No. 173-4675
Mfr. Part No.S71805-14.31818-X-15
BrandAKER
$2.523
Each (On a Reel of 250)
units
XO 14.3182MHz HCMOS ±50ppm Surface Mount SMD - - - - -40°C - 1.3mm 85°C
RS Stock No. 703-2350
Mfr. Part No.ASE-16.000MHz-LC
BrandAbracon
$2.90
Each
units
Clock 16MHz CMOS ±50ppm Surface Mount SMD - - - - -40°C - 1mm 85°C
RS Stock No. 173-2413
Mfr. Part No.Q33310F70017011
BrandEpson
$1.822
Each (On a Reel of 250)
units
XO 40MHz CMOS ±100ppm Surface Mount SMD - - - - -40°C - 1.05mm 85°C
RS Stock No. 671-9788
Mfr. Part No.S23305-16.000-X
BrandAKER
$6.10
Each
units
Clock 16MHz CMOS ±50ppm Surface Mount SMD - - - - -40°C - 0.95mm 85°C
RS Stock No. 173-4689
Mfr. Part No.S23305-16.000-X
BrandAKER
$4.19
Each (On a Reel of 250)
units
XO 16MHz CMOS ±50ppm Surface Mount SMD - - - - -40°C - 0.95mm 85°C
RS Stock No. 173-2424
Mfr. Part No.Q33310F70003311
BrandEpson
$2.20
Each (On a Reel of 250)
units
XO 24MHz CMOS ±100ppm Surface Mount SMD - - - - -40°C - 1.05mm 85°C
RS Stock No. 478-5171
Mfr. Part No.Q3309CA40006601
BrandEpson
$5.05
Each
units
XO 16MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 1.4mm 70°C
RS Stock No. 173-2590
Mfr. Part No.Q3309CA40006601
BrandEpson
$3.749
Each (On a Reel of 250)
units
XO 16MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 1.4mm 70°C
RS Stock No. 667-6338
Mfr. Part No.Q33310F70003311
BrandEpson
$5.95
Each
units
XO 24MHz CMOS ±100ppm Surface Mount SMD - - - - -40°C - 1.05mm 85°C
RS Stock No. 148-4355
Mfr. Part No.LFSPXO018036 831018036
BrandIQD
$2.303
Each (In a Pack of 10)
units
Clock 10MHz HCMOS ±50ppm Surface Mount SMD - - - - 0°C - 1.4mm 70°C
RS Stock No. 146-3954
Mfr. Part No.LFSPXO018036 831018036
BrandIQD
$1.96
Each (On a Reel of 1000)
units
Clock 10MHz HCMOS ±50ppm Surface Mount SMD - - - - 0°C - 1.4mm 70°C