Crystals, Oscillators & Resonators
A crystal oscillator is an 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, which is made up of 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 wristwatch or a digital integrated circuit, to provide a stable clock signal. This is where this signal gained it’s commonly referred to as “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 OscillatorsCrystal 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 OscillatorsTCXO – 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.
-
EPSON 32.768kHz Crystal Unit ±20ppm MC-306 4-Pin 8 x 3.2 x 2.38mm
VND164,318.00Bag (1 Bag of 5) -
Abracon 12.8MHz Crystal ±10ppm SMD 5 x 3 x 1.1mm
VND171,496.00Reel (1 Reel of 10) -
Abracon 32.768kHz Crystal Unit ±20ppm SMD 2-Pin 3.2 x 1.5 x 0.9mm
VND175,376.00Pack (1 Pack of 10) -
Analog Devices 1kHz to 68MHz Programmable Oscillator MSOP300ppm/√kh LTC6903CMS8#PBF5.5V
VND183,718.00 -
MERCURY, 20MHz Clock Oscillator, ±50ppm HCMOS, TTL, 14-Pin PDIP 5H14ET-20.000
VND206,222.00 -
Epson 25MHz Crystal ±50ppm SMD 4-Pin 3.2 x 2.5 x 0.7mm
VND243,082.00Reel (1 Reel of 5) -
IQD 32.768kHz Crystal Unit ±20ppm Cylinder 2-Pin 3 (Dia.) x 8.2mm
VND247,156.00Pack (1 Pack of 50) -
IQD 32.768kHz Crystal Unit ±15ppm Cylinder 2-Pin 3 (Dia.) x 8.2mm
VND247,156.00Pack (1 Pack of 50) -
Abracon 25MHz MEMS Oscillator, 4-Pin QFN, ±50ppm, ASDMB-25.000MHZ-LC-T
VND256,856.00Pack (1 Pack of 5) -
AWSCR-16.00MTD-T, Ceramic Resonator, 16MHz 22pF, 3-Pin, 4.7 x 4.1 x 1.5mm
VND259,184.00Reel (1 Reel of 25) -
AWSCR-16.00CV-T, Ceramic Resonator, 16MHz 22pF, 3-Pin, 3.7 x 3.1 x 1mm
VND270,436.00Pack (1 Pack of 25) -
RS PRO 10MHz TCXO Oscillator, CMOS ±50ppm
VND307,102.00Pack (1 Pack of 2) -
Abracon 25MHz MEMS Oscillator, 4-Pin QFN, ±50ppm, ASEMB-25.000MHZ-LC-T
VND443,484.00Reel (1 Reel of 5) -
IQD 16MHz Crystal Unit ±30ppm HC-49-4H 2-Pin 11.05 x 4.7 x 4.1mm
VND514,294.00Pack (1 Pack of 50) -
IQD 14.7456MHz Crystal Unit ±30ppm HC49/4H 2-Pin 11.05 x 4.7 x 4.1mm
VND525,740.00Pack (1 Pack of 50) -
IQD 8MHz Crystal -30ppm HC49/4H 2-Pin 11.05 X 4.7 X 4.1mm
VND525,740.00Pack (1 Pack of 50) -
AKER 20MHz Crystal ±30ppm SMD 4-Pin 3.2 x 2.5 x 0.75mm
VND5,561,010.00Reel (1 Reel of 250) -
Abracon 16MHz Crystal Unit ±20ppm SMD 4-Pin 3.2 x 2.5 x 1mm
VND7,566,776.00Reel (1 Reel of 1000) -
Epson, 40MHz XO Oscillator, ±50ppm CMOS, 4-Pin PDIP Q3204DC21004400
VND8,628,150.00Tube (1 Tube of 35)