Crystal Oscillators | Electronic Oscillators | RS
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    Crystal Oscillators

    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 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.

    1286 產品顯示為 Crystal Oscillators

    MERCURY
    Clock
    1.8432MHz
    HCMOS, TTL
    ±50ppm
    Through Hole
    PDIP
    -
    -
    -
    20.2mm
    -40°C
    10.7mm
    5.08mm
    85°C
    20.2 x 10.7 x 5.08mm
    Euroquartz
    XO
    12MHz
    HCMOS, LSTTL
    ±50ppm
    Surface Mount
    SMD
    -
    -
    -
    3.2mm
    -40°C
    2.5mm
    0.95mm
    85°C
    3.2 x 2.5 x 0.95mm
    Renesas Electronics
    XO
    74MHz
    HCMOS
    ±20ppm
    -
    SMD
    -
    -
    -
    -
    -
    -
    -
    -
    -
    QANTEK
    XO
    4.9152MHz
    HCMOS
    ±50ppm
    Through Hole
    DIP14
    -
    -
    -
    20.8mm
    -40°C
    13.2mm
    5.08mm
    85°C
    20.8 x 13.2 x 5.08mm
    AKER
    Clock
    50MHz
    CMOS
    ±50ppm
    Surface Mount
    SMD
    -
    -
    -
    3.2mm
    -40°C
    2.5mm
    1.1mm
    85°C
    3.2 x 2.5 x 1.1mm
    Renesas Electronics
    XO
    12MHz
    HCMOS
    ±20ppm
    -
    SMD
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Renesas Electronics
    XO
    8MHz
    HCMOS
    ±20ppm
    -
    SMD
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Wurth Elektronik
    SPXO
    12.288MHz
    HCMOS
    ±25ppm
    -
    SMT
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Epson
    XO
    20MHz
    CMOS
    -
    Surface Mount
    -
    -
    -
    -
    5mm
    -
    3.2mm
    1.1mm
    -
    5 x 3.2 x 1.1mm
    MERCURY
    Clock
    4.9152MHz
    HCMOS, TTL
    ±50ppm
    Through Hole
    PDIP
    -
    -
    -
    20.2mm
    -40°C
    10.7mm
    5.08mm
    85°C
    20.2 x 10.7 x 5.08mm
    Wurth Elektronik
    SPXO
    12MHz
    HCMOS
    ±50ppm
    -
    SMT
    -
    -
    -
    -
    -
    -
    -
    -
    -
    RALTRON
    -
    -
    -
    ±50ppm
    Surface Mount
    HC-49-US SMD
    -
    -
    -
    12mm
    -20°C
    4.8mm
    4.6mm
    70°C
    12 x 4.8 x 4.6mm
    QANTEK
    XO
    8MHz
    HCMOS
    ±50ppm
    Through Hole
    DIP14
    -
    -
    -
    20.8mm
    -40°C
    13.2mm
    5.08mm
    85°C
    20.8 x 13.2 x 5.08mm
    Renesas Electronics
    XO
    75MHz
    HCMOS
    ±20ppm
    -
    SMD
    -
    -
    -
    -
    -
    -
    -
    -
    -
    QANTEK
    XO
    40MHz
    HCMOS
    ±50ppm
    Through Hole
    PDIP
    -
    -
    -
    13.21mm
    -40°C
    13.21mm
    5.08mm
    85°C
    13.21 x 13.21 x 5.08mm
    Epson
    XO
    24MHz
    CMOS
    ±50ppm
    Through Hole
    PDIP
    -
    -
    -
    13.7mm
    -20°C
    6.6mm
    5.3mm
    70°C
    13.7 x 6.6 x 5.3mm
    Wurth Elektronik
    SPXO
    10MHz
    HCMOS, TTL
    ±50ppm
    -
    SMT
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Micro Crystal
    Clock
    32.768kHz
    HCMOS
    ±20ppm
    Surface Mount
    SMD
    -
    -
    -
    3.2mm
    -40°C
    1.5mm
    1mm
    85°C
    3.2 x 1.5 x 1mm
    Epson
    XO
    20MHz
    CMOS
    -
    Surface Mount
    -
    -
    -
    -
    2.5mm
    -40°C
    2mm
    0.8mm
    +105°C, +85°C
    2.5 x 2 x 0.8mm
    RALTRON
    -
    -
    -
    ±50ppm
    Surface Mount
    HC-49-US SMD
    -
    -
    -
    12mm
    -20°C
    4.8mm
    4.6mm
    70°C
    12 x 4.8 x 4.6mm
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