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庫存編號 671-9621
製造零件編號S73305-8.000-X-15
BrandAKER
HK$21.93
單位
Clock 8MHz HCMOS ±50ppm Surface Mount SMD - - - - -40°C - 1.3mm 85°C
RS庫存編號 178-2645
製造零件編號CB3LV-3I-27M0000
BrandCTS
HK$11.592
/個 (每包:10個)
單位
Clock 27MHz HCMOS, TTL ±50ppm Surface Mount SMD 3V dc 3.6V dc - - -40°C - 1.8mm 85°C
RS庫存編號 478-5812
製造零件編號Q3204DC21032400
BrandEPSON
HK$35.13
單位
XO 3.6864MHz CMOS ±50ppm Through Hole PDIP - - - - -20°C - 5.3mm 70°C
RS庫存編號 173-5897
製造零件編號QX233A8.000000B15R
BrandQANTEK
HK$17.206
個 (在毎卷:1000)
單位
Clock 8MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 0.95mm 85°C
RS庫存編號 796-0552
製造零件編號QX8T50B2.457600B50TT
BrandQANTEK
HK$28.11
單位
XO 2.4576MHz HCMOS ±50ppm Through Hole PDIP - - - - -40°C - 5.08mm 85°C
RS庫存編號 111-0772
製造零件編號KC2520B4.91520C10E00
BrandKYOCERA
HK$18.90
單位
Clock 4.9152MHz CMOS ±50ppm Surface Mount CSMD - - - - -10°C - 0.7mm 70°C
RS庫存編號 478-5705
製造零件編號Q3204DC21026700
BrandEPSON
HK$38.28
單位
XO 12MHz CMOS ±50ppm Through Hole PDIP - - - - -20°C - 5.3mm 70°C
RS庫存編號 904-7673
製造零件編號X1G004171003912
BrandEPSON
HK$12.11
單位
XO 30MHz CMOS - Surface Mount - - - - - -40°C - 0.8mm +85°C, +105°C
RS庫存編號 178-1974
製造零件編號CB3LV-3I-16M0000
BrandCTS
HK$7.56
個 (在毎卷:1000)
單位
Clock 16MHz HCMOS, TTL ±50ppm Surface Mount SMD 3V dc 3.6V dc - - -40°C - 1.8mm 85°C
全新
RS庫存編號 219-2081
製造零件編號MSH305048AH-20.000MHZ-T
BrandMMD
HK$10.754
Each (On a Tape of 5)
單位
XO 20MHz HCMOS 50ppm - SMD - - - - - - - -
RS庫存編號 111-0746
製造零件編號KC5032A14.7456CM0E00
BrandKYOCERA
HK$18.90
單位
Clock 14.7456MHz CMOS ±50ppm Surface Mount CSMD - - - - -10°C - 1mm 70°C
全新
RS庫存編號 219-1992
製造零件編號EB13E2H2H-27.000M TR
BrandEcliptek
HK$10.868
/個 (每包:5個)
單位
XO 27MHz CMOS 50ppm - SMD - - - - - - - -
RS庫存編號 667-6524
製造零件編號Q33519E40003712
BrandEpson
HK$14.30
單位
XO 8MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 1.05mm 70°C
RS庫存編號 171-2339
製造零件編號ASE-50.000MHZ-LC-T
BrandAbracon
HK$8.715
個 (在毎卷:1000)
單位
XO 50MHz CMOS ±50ppm Surface Mount SMD - - - - -40°C - 1.2mm 85°C
RS庫存編號 173-5893
製造零件編號XO32050UITA-12.000
BrandEuroquartz
HK$11.835
個 (在毎卷:1000)
單位
Clock 12MHz HCMOS, LSTTL ±50ppm Surface Mount SMD - - - - -40°C - 0.95mm 85°C
RS庫存編號 173-5888
製造零件編號QX8T50B40.00000B50TT
BrandQANTEK
HK$25.158
毎管:40 個
單位
Clock 40MHz HCMOS ±50ppm Through Hole PDIP - - - - -40°C - 5.08mm 85°C
RS庫存編號 173-5912
製造零件編號QX133A32.00000B15R
BrandQANTEK
HK$21.66
個 (在毎卷:1000)
單位
Clock 32MHz HCMOS ±25ppm Surface Mount SMD - - - - -40°C - 0.6mm 85°C
RS庫存編號 172-1908
製造零件編號KC5032K9.83040C1GE00
BrandKYOCERA
HK$36.51
單位
Clock 9.83MHz CMOS - Surface Mount SMD - - - - -40°C - 1.2mm 85°C
RS庫存編號 173-4651
製造零件編號QX8T50B20.00000B50TT
BrandQANTEK
HK$29.064
毎管:40 個
單位
XO 20MHz HCMOS ±50ppm Through Hole PDIP - - - - -40°C - 5.08mm 85°C
RS庫存編號 171-0365
製造零件編號AX7PAF1-156.2500C
BrandAbracon
HK$61.11
單位
XO 156.25MHz LVPECL ±25ppm Surface Mount 6-SMD Compatible - - - - -40°C - 1.9mm 85°C