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    Clock Synthesizers

    A clock synthesizer is an electronic circuit that converts a single clock signal frequency into a range of output frequencies. Frequency values are given in MHz. Clock synthesizers can generate frequencies in multiples of the original, also known as a conversion rate. They can work in a phase-locked look, also known as a PLL.

    Clock synthesizers are semiconductor devices which come in a standard package, such has a QFN, TSSOP or SOIC.

    Where are Clock Synthesizersused used?

    • Wireless devices
    • RF devices
    • Radio
    • GPS
    • TV
    • Mobile phones

    What is a PLL Synthesizer?

    PLL synthesizers are analogue devices. A PLL circuit features a Voltage-Controlled Oscillator (VCO). The VCO output is constantly adjusted to match the phase and frequency of an input signal, using feedback from a Phase Comparator. A PLL circuit is often used to synchronise (lock) RF receiver circuits to an incoming carrier signal. If a frequency divider integer-n is introduced between the VCO output and the phase comparator, the PLL circuit output frequency will be fin/n, locked in phase to fin. If fin comes from a highly-stable fixed frequency oscillator and n is programmable, then the circuit forms the basis of an accurate Digital Frequency Synthesizer.

    What is a Direct Digital Synthesizer?

    Direct digital synthesizers (DDS) are digital devices. They are made up of a crystal oscillator, an NCO (numerically controlled oscillator) and a DAC (digital-to-analogue converter). DDS, in comparison to an analogue PLL synthesizer, offer improved phase noise and better control over the output where there are transitions between frequencies. They also offer better jitter performance.

    50 สินค้าที่แสดงสำหรับ Clock Synthesizers

    • RS Stock No. 662-4589
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. CD74HC4046AE
    Each: (In a Pack of 10)
    THB38.749
    Texas Instruments
    -
    -
    -
    -
    Through Hole
    1
    -
    PDIP
    -
    16
    19.3 x 6.35 x 4.57mm
    -
    4.57mm
    19.3mm
    6 V
    +125 °C
    2 V
    -55 °C
    • RS Stock No. 412-933P
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. AD9850BRSZ
    Each (Supplied in a Box)
    THB1,392.77
    Analog Devices
    Digital Synthesizer
    125000ksps
    10 bit
    -
    Surface Mount
    -
    -
    SSOP
    -
    28
    10.2 x 5.3 x 1.75mm
    -
    1.75mm
    10.2mm
    -
    +85 °C
    -
    -40 °C
    • RS Stock No. 183-2193P
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. AD9901KPZ
    Each (Supplied in a Tube)
    THB580.32
    Analog Devices
    -
    -
    -
    -
    Surface Mount
    1
    -
    PLCC
    54 mA
    20
    9.04 x 9.04 x 3.94mm
    200MHz
    3.94mm
    9.04mm
    5 V
    +70 °C
    -5.2 V
    0 °C
    • RS Stock No. 697-7559P
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. ADF4360-4BCPZ
    Each (Supplied in a Tray)
    THB263.27
    Analog Devices
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS Stock No. 241-2963
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. AB-557-03-HCHC-F-L-C-T
    Each (On a Reel of 1000)
    THB178.642
    Abracon
    -
    -
    -
    460MHz
    Surface Mount
    1
    -
    TSSOP-16
    -
    14
    -
    -
    -
    -
    3.6 V
    -
    -
    -
    • RS Stock No. 145-2977
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. MC14046BDWG
    Each (In a Tube of 47)
    THB27.274
    onsemi
    -
    -
    -
    0.7MHz
    Surface Mount
    -
    0.5MHz
    SOIC
    ±1 μA
    16
    10.45 x 7.6 x 2.4mm
    -
    2.4mm
    10.45mm
    18 V
    +125 °C
    3 V
    -55 °C
    • RS Stock No. 806-3179
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. MC14046BDWG
    Each: (In a Pack of 20)
    THB31.332
    onsemi
    -
    -
    -
    0.7MHz
    Surface Mount
    -
    0.5MHz
    SOIC
    ±1 μA
    16
    10.45 x 7.6 x 2.4mm
    -
    2.4mm
    10.45mm
    18 V
    +125 °C
    3 V
    -55 °C
    • RS Stock No. 662-4611P
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. CDCF5801ADBQ
    Each (Supplied in a Tube)
    THB234.63
    Texas Instruments
    -
    -
    -
    280MHz
    Surface Mount
    1
    25MHz
    QSOP
    75 mA
    24
    8.75 x 4 x 1.5mm
    240MHz
    1.5mm
    8.75mm
    3.6 V
    +85 °C
    3 V
    -40 °C
    • RS Stock No. 759-1483P
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. AD9854ASVZ
    Each (Supplied in a Tray)
    THB2,566.72
    Analog Devices
    Direct Synthesizer
    300Msps
    12 bit
    -
    Surface Mount
    -
    -
    TQFP
    -
    80
    16.2 x 16.2 x 1.2mm
    -
    1.2mm
    16.2mm
    3.465 V
    +85 °C
    3.135 V
    -40 °C
    • RS Stock No. 716-5804P
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. CS2300-CP-CZZ
    Each (Supplied in a Tube)
    THB349.60
    Cirrus Logic
    -
    -
    -
    75MHz
    Surface Mount
    1
    6MHz
    MSOP
    ±10 mA
    10
    3 x 3 x 0.95mm
    30MHz
    0.95mm
    3mm
    3.5 V
    +70 °C
    3.1 V
    -10 °C
    • RS Stock No. 241-2964
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. AB-557-03-HCHC-F-L-C-T
    Each: (In a Pack of 2)
    THB323.16
    Abracon
    -
    -
    -
    460MHz
    Surface Mount
    1
    -
    TSSOP-16
    -
    14
    -
    -
    -
    -
    3.6 V
    -
    -
    -
    • RS Stock No. 708-9782P
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. ADF4360-9BCPZ
    Each (Supplied in a Tray)
    THB405.96
    Analog Devices
    -
    -
    -
    400MHz
    Surface Mount
    1
    1.1MHz
    CP 24 2
    5 mA
    24
    4 x 4 x 0.83mm
    250MHz
    0.83mm
    4mm
    3.6 V
    +85 °C
    3 V
    -40 °C
    • RS Stock No. 827-0673P
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. NB3N51032DTG
    Each (Supplied in a Tube)
    THB129.075
    onsemi
    -
    -
    -
    200MHz
    Surface Mount
    2
    25MHz
    TSSOP
    100 mA
    16
    5.1 x 4.5 x 1.05mm
    25MHz
    1.05mm
    5.1mm
    3.465 V
    +85 °C
    3.135 V
    -40 °C
    • RS Stock No. 827-0673
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. NB3N51032DTG
    Each: (In a Pack of 2)
    THB129.075
    onsemi
    -
    -
    -
    200MHz
    Surface Mount
    2
    25MHz
    TSSOP
    100 mA
    16
    5.1 x 4.5 x 1.05mm
    25MHz
    1.05mm
    5.1mm
    3.465 V
    +85 °C
    3.135 V
    -40 °C
    • RS Stock No. 761-6438
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. LMX2485ESQ/NOPB
    1 Tape of 1
    THB261.89
    Texas Instruments
    -
    -
    -
    3000MHz
    Surface Mount
    3
    50MHz
    WQFN
    5 mA
    24
    4 x 4 x 0.8mm
    110 MHz, 800MHz
    0.8mm
    4mm
    3.6 V
    +150 °C
    2.5 V
    -65 °C
    • RS Stock No. 761-6438P
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. LMX2485ESQ/NOPB
    Each (Supplied on a Reel)
    THB261.89
    Texas Instruments
    -
    -
    -
    3000MHz
    Surface Mount
    3
    50MHz
    WQFN
    5 mA
    24
    4 x 4 x 0.8mm
    110 MHz, 800MHz
    0.8mm
    4mm
    3.6 V
    +150 °C
    2.5 V
    -65 °C
    • RS Stock No. 817-5994
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. CDCM61004RHBT
    1 Tape of 1
    THB340.67
    Texas Instruments
    -
    -
    -
    683.264MHz
    Surface Mount
    4
    43.75MHz
    VQFN
    65 mA
    32
    5.15 x 5.15 x 0.95mm
    28.47MHz
    0.95mm
    5.15mm
    3.6 V
    +85 °C
    3 V
    -40 °C
    • RS Stock No. 817-5994P
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. CDCM61004RHBT
    Each (Supplied on a Reel)
    THB340.67
    Texas Instruments
    -
    -
    -
    683.264MHz
    Surface Mount
    4
    43.75MHz
    VQFN
    65 mA
    32
    5.15 x 5.15 x 0.95mm
    28.47MHz
    0.95mm
    5.15mm
    3.6 V
    +85 °C
    3 V
    -40 °C
    • RS Stock No. 923-6693
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. CD4046BE
    Each (In a Tube of 25)
    THB15.884
    Texas Instruments
    -
    -
    -
    -
    Through Hole
    1
    -
    PDIP
    -
    16
    19.3 x 6.35 x 4.57mm
    -
    4.57mm
    19.3mm
    18 V
    +125 °C
    3 V
    -55 °C
    • RS Stock No. 787-6930
    • หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No. NB3N5573DTG
    Each
    THB166.22
    onsemi
    -
    -
    -
    200MHz
    Surface Mount
    2
    25MHz
    TSSOP
    135 mA
    16
    5.1 x 4.5 x 1.05mm
    25MHz
    1.05mm
    5.1mm
    3.63 V
    +85 °C
    2.97 V
    -40 °C
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