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 178-2594
製造零件編號347LB3I1228T
BrandCTS
HK$86.16
單位
Clock 122.88MHz LVPECL ±50ppm Surface Mount SMD - - - - -40°C - 1.7mm 85°C
RS庫存編號 815-0396
製造零件編號QTX733A16.0000B15R
HK$20.35
單位
Clock 16MHz HCMOS, TTL ±25ppm Surface Mount SMD - - - - -40°C - 1.4mm 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 815-0633
製造零件編號QTX318A50.0000B15TR
HK$23.62
單位
Clock 50MHz HCMOS, TTL ±25ppm Surface Mount SMD - - - - -40°C - 1.2mm 85°C
RS庫存編號 478-8669
製造零件編號LFSPXO018039 831018039
BrandIQD
HK$17.15
單位
XO 20MHz HCMOS ±50ppm Surface Mount SMD - - - - 0°C - 1.5mm 70°C
RS庫存編號 111-0688
製造零件編號KC7050A20.0000C30E00
BrandKYOCERA
HK$28.60
單位
Clock 20MHz CMOS ±50ppm Surface Mount CSMD - - - - -10°C - 1.6mm 70°C
RS庫存編號 478-6023
製造零件編號Q3306JA41025401
BrandEpson
HK$26.17
單位
XO 1MHz CMOS ±50ppm Surface Mount SMD - - - - -40°C - 4.45mm 85°C
全新
RS庫存編號 216-6279
製造零件編號XLH536001.000000I
HK$8.638
/個 (每包:10個)
單位
- 0.75MHz LVDS 25ppm - VCXO - - - - - - - -
RS庫存編號 173-5844
製造零件編號S73305-50.000-X-15
BrandAKER
HK$18.50
個 (在毎卷:250)
單位
Clock 50MHz HCMOS ±50ppm Surface Mount SMD - - - - -40°C - 1.3mm 85°C
全新
RS庫存編號 217-8008
製造零件編號XLH736024.000000I
HK$5.96
Each (On a Tape of 1000)
單位
- 24MHz LVCMOS ±25ppm - SMD - - - - - - - -
全新
RS庫存編號 219-2091
製造零件編號MSH305048AH-48.000MHZ-T
BrandMMD
HK$6.635
個 (在毎卷:1000)
單位
XO 48MHz HCMOS 50ppm - SMD - - - - - - - -
RS庫存編號 796-0606
製造零件編號QX8T50B14.74560B50TT
BrandQANTEK
HK$27.79
單位
XO 14.7456MHz HCMOS ±50ppm Through Hole PDIP - - - - -40°C - 5.08mm 85°C
RS庫存編號 478-6253
製造零件編號Q3306JA21017301
BrandEpson
HK$32.83
單位
XO 30MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 4.45mm 70°C
RS庫存編號 172-1880
製造零件編號KC5032K28.6364C1GE00
BrandKYOCERA
HK$36.09
單位
Clock 28.63MHz CMOS - Surface Mount SMD - - - - -40°C - 1.2mm 85°C
RS庫存編號 186-3349
製造零件編號MXO-49A-I 20.0000MHz
BrandMITADENPA
HK$300.32
單位
- 20MHz CMOS, TTL ±25ppm Through Hole - - 5V dc - - -10°C - 6.5mm 70°C
RS庫存編號 173-2876
製造零件編號LFSPXO009439
BrandIQD
HK$1.732
個 (以毎袋:100)
單位
XO 106.25MHz HCMOS ±50ppm Surface Mount SMD - - - - 0°C - 1.5mm 70°C
RS庫存編號 172-1739
製造零件編號KC7050K12.0000C1GE00
BrandKYOCERA
HK$14.932
個 (在毎卷:1000)
單位
Clock 12MHz CMOS - Surface Mount SMD - - - - -40°C - 1.2mm 85°C
RS庫存編號 144-1124
BrandRS PRO
HK$20.062
/個 (每包:5個)
單位
Clock 10MHz CMOS ±50ppm Surface Mount SMD - 5.5V dc - - -10°C - 1.8mm 70°C
全新
RS庫存編號 219-2087
製造零件編號MSH305048AH-27.000MHZ-T
BrandMMD
HK$10.754
Each (On a Tape of 5)
單位
XO 27MHz HCMOS 50ppm - SMD - - - - - - - -
RS庫存編號 171-0165
製造零件編號AX7DBF1-150.0000C
BrandAbracon
HK$55.682
Each (On a Tape of 50)
單位
XO - - - - - - - - - - - - -