What are Clock Generators, PLLs, Frequency Synthesizers ?
Clock Generators, PLLs, Frequency Synthesizers are integrated circuits that generate clock signals to synchronize operations in electronic devices. They are commonly used in applications like wireless communication, RF signal processing, and electronic assembly. Important specifications for selection include Frequency, which determines the operational speed; Input, which affects compatibility with existing systems; and Output, which ensures proper signal integrity. Sourcing teams should validate lifecycle status and consider alternate-source options to mitigate supply chain risks.
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| Part & Mfr | Differential | Divider | Frequency | Input | Mounting Type | Number of Circuits | Operating Temperature | Output | PLL | Ratio | Supplier Device Package | Type | Voltage | |||
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Infineon Technologies
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Analog Devices / Maxim Integrated
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No/No | Yes/No | - | Clock | Surface Mount | 1 | -40°C ~ 85°C | Clock | No | 1:1 | 8-uMAX/uSOP | Clock Generator | 2.7V ~ 3.6V | |
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Cypress Semiconductor
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Cypress Semiconductor
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Cypress Semiconductor
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On Semiconductor
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Cypress Semiconductor
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No/No | Yes/No | 75MHz | Clock, Crystal | Surface Mount | 1 | 0°C ~ 70°C | CMOS | Yes | 1:1 | 8-SOIC | Clock/Frequency Synthesizer, Spread Spectrum Clock Generator | 3.135V ~ 3.465V, 4.5V ~ 5.5V | |
Cypress Semiconductor
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No/No | Yes/No | 65MHz | - | Surface Mount | 1 | 0°C ~ 70°C (TA) | - | Yes | 1:1 | 8-SOIC | Spread Spectrum Clock Generator | 3.135V ~ 3.465V | |
Cypress Semiconductor
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No/No | Yes/No | 133MHz | - | Surface Mount | 1 | 0°C ~ 70°C (TA) | - | No | 2:2 | 8-SOIC | Frequency Multiplier, Zero Delay Buffer | 3.135V ~ 3.465V, 4.5V ~ 5.5V | |
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Infineon Technologies
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Cypress Semiconductor
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No/No | Yes/No | 69MHz | Crystal | Surface Mount | 1 | 0°C ~ 70°C (TA) | - | Yes | 1:1 | 8-SOIC | Spread Spectrum Clock Generator | 4.5V ~ 5.5V | |
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Standard Microsystems
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Standard Microsystems
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Standard Microsystems
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Standard Microsystems
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Standard Microsystems
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Pericom Semiconductor Corporation
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Texas Instruments
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Yes/No | Yes/Yes | 4.5GHz | CMOS | Surface Mount | 1 | -40°C ~ 85°C (TA) | CMOS | Yes | 3:2 | 24-WQFN (4x4) | PLL Frequency Synthesizer, Delta Sigma | 2.5V ~ 3.6V | |
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Standard Microsystems
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Pericom Semiconductor Corporation
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Cypress Semiconductor
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Standard Microsystems
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Cypress Semiconductor
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Cypress Semiconductor
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Cypress Semiconductor
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Cypress Semiconductor
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Standard Microsystems
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Elantec Semiconductor Inc
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No/No | Yes/No | 36MHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | CMOS, TTL | Yes | 3:1 | 16-SOIC | Phase Lock Loop (PLL) | 5V | |
Cypress Semiconductor
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Cypress Semiconductor
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Texas Instruments
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No/No | No/No | 67.5MHz, 148.5MHz | LVCMOS | Surface Mount | 1 | 0°C ~ 70°C (TA) | LVDS | Yes | 1:2 | 32-WQFN (5x5) | Clock Generator | 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
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Cypress Semiconductor
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Cypress Semiconductor
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Cypress Semiconductor
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Cypress Semiconductor
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Cypress Semiconductor
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Analog Devices / Maxim Integrated
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Yes/No | Yes/No | 7.5GHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 2:1 | 20-LFCSP (4x4) | Clock/Frequency Synthesizer (RF) | 2.7V ~ 3.3V | |
Infineon Technologies
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No/No | No/No | 133.3MHz | Clock | Surface Mount | 1 | 0°C ~ 70°C | Clock | Yes | 1:4 | 8-SOIC | Fanout Buffer (Distribution), Zero Delay Buffer | 3V ~ 3.6V | |
Analog Devices / Maxim Integrated
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Yes/Yes | Yes/No | 6.39GHz | Clock | Surface Mount | 1 | -40°C ~ 105°C | Clock | Yes | 1:1 | 28-QFN (4x5) | Clock/Frequency Synthesizer (RF/IF), Fractional N | 3.15V ~ 5.25V | |
Analog Devices / Maxim Integrated
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Yes/No | Yes/No | 4GHz | LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 2:1 | 24-LFCSP (4x4) | - | 3.135V ~ 3.465V | |
On Semiconductor
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Analog Devices / Maxim Integrated
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No/Yes | Yes/No | 900MHz | CMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | CMOS, LVDS, LVPECL | Yes with Bypass | 2:2 | 32-LFCSP-WQ (5x5) | Clock Generator | 3.135V ~ 3.465V | |
Renesas
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Yes/Yes | Yes/No | 180MHz, 1GHz | HCSL, LVCMOS, LVDS, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, LVCMOS, LVDS, LVPECL | Yes | 2:5 | 24-VFQFPN (4x4) | Frequency Translator | 1.71V ~ 1.89V, 3.465V | |
Texas Instruments
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Yes/Yes | Yes/No | 2.5GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | HSDS, LCPECL, LVCMOS, LVDS, LVPECL | Yes | 3:15 | 64-WQFN (9x9) | Jitter Cleaner | 3.15V ~ 3.45V | |
Microchip Technology
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Yes/Yes | No/No | 10.7GHz | CML, PECL, Data | Surface Mount | 1 | -40°C ~ 85°C | CML | No | 2:1 | 16-QFN (3x3) | - | 2.375V ~ 3.63V | |
Skyworks Solutions
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Yes/Yes | Yes/No | 200MHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | HCSL, LVCMOS, LVDS, LVPECL | Yes | 3:8 | 40-QFN (6x6) | Clock Generator | 1.71V ~ 3.63V | |
Skyworks Solutions
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Yes/Yes | Yes/No | 312.5MHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | HCSL, LVCMOS, LVDS, LVPECL | Yes | 2:6 | 32-QFN (5x5) | Clock Generator | 1.71V ~ 3.63V | |
Renesas
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No/No | No/No | 133MHz | LVTTL | Surface Mount | 1 | -40°C ~ 85°C | CMOS, LVCMOS, TTL | Yes with Bypass | 1:5 | 8-SOIC | Zero Delay Buffer | 3V ~ 3.6V | |
Skyworks Solutions
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Yes/Yes | No/No | 200MHz | Clock, Crystal | Surface Mount | 1 | -40°C ~ 85°C | CML, LVCMOS, LVDS, LVPECL | Yes with Bypass | 2:2 | 36-QFN (6x6) | Jitter Cleaner | 1.71V ~ 3.63V | |
Microchip Technology
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Yes/Yes | Yes/No | 756MHz | CMOS, HSTL, LVDS, LVPECL, LVTTL, SSTL, Crystal | Surface Mount | 1 | -40°C ~ 85°C | LVDS, LVPECL | Yes | 3:7 | 44-MLF® (7x7) | Clock/Frequency Synthesizer | 2.375V ~ 3.6V |
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