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 | Main Purpose | Mounting Type | Number of Circuits | Operating Temperature | Output | PLL | Ratio | Supplier Device Package | Type | Voltage | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Renesas
|
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Yes/Yes | - | 1GHz | - | Ethernet, SONET/SDH | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL | Yes | - | 72-VFQFPN (10x10) | - | 1.71V ~ 3.465V | |
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Renesas
|
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Yes/Yes | - | 1GHz | - | Ethernet, SONET/SDH | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL | Yes | - | 72-VFQFPN (10x10) | - | 1.71V ~ 3.465V | |
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Renesas
|
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Yes/Yes | - | 1GHz | - | Ethernet, SONET/SDH | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL | Yes | - | 72-VFQFPN (10x10) | - | 1.71V ~ 3.465V | |
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Renesas
|
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Yes/Yes | - | 1GHz | - | Ethernet, SONET/SDH | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL | Yes | - | 72-VFQFPN (10x10) | - | 1.71V ~ 3.465V | |
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Renesas
|
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Yes/Yes | - | 1GHz | - | Ethernet, SONET/SDH | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL | Yes | - | 72-VFQFPN (10x10) | - | 1.71V ~ 3.465V | |
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Renesas
|
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Yes/Yes | - | 1GHz | - | Ethernet, SONET/SDH | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL | Yes | - | 72-VFQFPN (10x10) | - | 1.71V ~ 3.465V | |
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Skyworks Solutions
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- | - | - | - | - | - | - | - | - | - | - | - | - | - | |
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Linear Technology
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No/No | - | 50MHz | CMOS, TTL | LED Lighting | Surface Mount | 1 | -40°C ~ 125°C | CMOS, TTL | No | 1:48 | 56-TLAQFN (6x6) | - | 3V ~ 5.5V | |
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Cypress Semiconductor
|
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No/Yes | - | 133MHz | LVTTL, Crystal | Intel CPU Servers | Surface Mount | 1 | 0°C ~ 85°C (TA) | Clock | Yes | 1:22 | 56-TSSOP II | - | 3.135V ~ 3.465V | |
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Cypress Semiconductor
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- | - | - | - | - | - | - | - | - | - | - | - | - | - | |
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Renesas
|
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Yes/Yes | - | 400MHz | - | PCI Express (PCIe) | Surface Mount | 1 | 0°C ~ 70°C (TA) | - | Yes with Bypass | 1:12 | 64-TSSOP | - | 3.135V ~ 3.465V | |
Renesas
|
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No/No | No/Yes | 160MHz | Clock, Crystal | - | Surface Mount | 1 | 0°C ~ 70°C | CMOS | Yes | 1:1 | 8-SOIC | Clock Generator | 3V ~ 5.25V | |
Infineon Technologies
|
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No/No | No/No | 133.33MHz | Clock | - | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes with Bypass | 1:5 | 8-SOIC | Fanout Buffer (Distribution), Zero Delay Buffer | 3V ~ 3.6V | |
Skyworks Solutions
|
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No/No | Yes/No | 200MHz | Crystal | - | Surface Mount | 2 | -40°C ~ 85°C | LVCMOS | Yes | 1:8 | 20-QFN (4x4) | Clock Generator | 1.71V ~ 3.6V | |
Diodes Incorporated
|
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No/Yes | No/No | 100MHz | CMOS, Crystal | - | Surface Mount | 1 | -40°C ~ 85°C (TA) | HCSL | Yes | 1:2 | 24-TQFN (4x4) | Clock Generator | 3.135V ~ 3.465V | |
Skyworks Solutions
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No/No | Yes/No | 200MHz | Crystal | - | Surface Mount | 2 | -40°C ~ 85°C | LVCMOS | Yes | 1:8 | 20-QFN (4x4) | Clock Generator | 1.71V ~ 3.6V | |
Diodes Incorporated
|
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- | No/No | 100MHz | CMOS, Crystal | - | Surface Mount | 1 | -40°C ~ 85°C (TA) | HCSL | Yes | 1:4 | 32-TQFN (5x5) | Clock Generator | 3.135V ~ 3.465V | |
Skyworks Solutions
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Yes/No | Yes/Yes | 2.1GHz | Crystal | - | Surface Mount | 1 | -40°C ~ 85°C | Crystal | No | 1:1 | 24-MCM (4x4) | Fractional N Synthesizer | 2.7V ~ 3.3V | |
Texas Instruments
|
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No/No | No/No | 38MHz | CMOS | - | Surface Mount | 1 | -55°C ~ 125°C | CMOS | Yes | 1:4 | 16-TSSOP | Phase Lock Loop (PLL) | 2V ~ 6V | |
Skyworks Solutions
|
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No/No | Yes/No | 200MHz | Crystal | - | Surface Mount | 2 | -40°C ~ 85°C | LVCMOS | Yes | 1:8 | 20-QFN (4x4) | Clock Generator | 1.71V ~ 3.6V | |
Skyworks Solutions
|
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No/No | Yes/No | 200MHz | Crystal | - | Surface Mount | 2 | -40°C ~ 85°C | LVCMOS | Yes | 1:8 | 20-QFN (4x4) | Clock Generator | 1.71V ~ 3.6V | |
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Analog Devices / Maxim Integrated
|
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No/No | Yes/No | 48.75MHz | Clock | - | Surface Mount | 1 | -40°C ~ 85°C | Clock | No | 1:1 | 8-uMAX/uSOP | Spread Spectrum Clock Generator | 2.7V ~ 3.6V | |
Skyworks Solutions
|
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No/No | Yes/No | 200MHz | Clock, Crystal | - | Surface Mount | 2 | -40°C ~ 85°C (TA) | CMOS, HCSL | Yes | 1:8 | 20-QFN (4x4) | Clock Generator | 2.25V ~ 3.6V | |
Texas Instruments
|
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- | - | - | - | - | - | - | - | - | - | - | - | - | - | |
Analog Devices / Maxim Integrated
|
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No/No | Yes/No | 400MHz | CMOS, TTL | - | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 1:2 | 24-LFCSP (4x4) | Fanout Distribution, Integer N Synthesizer (RF) | 3V ~ 3.6V | |
Analog Devices / Maxim Integrated
|
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Yes/No | No/No | 8GHz | CMOS, TTL | - | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 2:1 | 20-LFCSP (4x4) | Clock/Frequency Synthesizer (RF) | 3.2V ~ 3.6V | |
|
Infineon Technologies
|
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No/No | Yes/Yes | 133.3MHz | LVCMOS, LVTTL | - | Surface Mount | 1 | 0°C ~ 70°C | LVCMOS | Yes | 1:8 | 16-SOIC | Fanout Buffer (Distribution), Zero Delay Buffer | 3V ~ 3.6V | |
|
On Semiconductor
|
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- | - | - | - | - | - | - | - | - | - | - | - | - | - | |
Skyworks Solutions
|
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No/No | Yes/No | 1.8GHz | Crystal | - | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 1:2 | 28-QFN (5x5) | Frequency Synthesizer | 2.7V ~ 3.6V | |
Skyworks Solutions
|
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No/No | Yes/No | 1.8GHz | Crystal | - | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 1:3 | 28-QFN (5x5) | Frequency Synthesizer | 2.7V ~ 3.6V | |
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Renesas
|
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- | - | - | - | - | - | - | - | - | - | - | - | - | - | |
Analog Devices / Maxim Integrated
|
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Yes/No | Yes/Yes | 5GHz | CMOS | - | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 2:2 | 32-LFCSP (5x5) | - | 3V ~ 3.6V | |
Cypress Semiconductor
|
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- | - | - | - | - | - | - | - | - | - | - | - | - | - | |
Infineon Technologies
|
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No/No | No/No | 133.33MHz | LVCMOS, LVTTL | - | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS | Yes with Bypass | 1:9 | 16-TSSOP | Fanout Buffer (Distribution), Zero Delay Buffer | 3V ~ 3.6V | |
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 | 2:6 | 32-QFN (5x5) | Clock Generator | 1.71V ~ 3.63V | |
Analog Devices / Maxim Integrated
|
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Yes/Yes | Yes/No | 2.65GHz | CMOS, LVDS, LVPECL | - | Surface Mount | 1 | -40°C ~ 85°C | LVPECL | Yes | 1:6 | 48-LFCSP-VQ (7x7) | Clock Generator, Fanout Distribution | 3.135V ~ 3.465V | |
Skyworks Solutions
|
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Yes/Yes | Yes/No | 333.33MHz | 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 | |
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 | |
|
Cypress Semiconductor
|
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- | - | - | - | - | - | - | - | - | - | - | - | - | - | |
Skyworks Solutions
|
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Yes/Yes | Yes/No | 350MHz | LVCMOS, LVDS, LVPECL, Crystal | - | Surface Mount | 1 | -40°C ~ 85°C | CML, HCSL, LVCMOS, LVDS, LVPECL | Yes | 4:4 | 44-QFN (7x7) | - | 1.71V ~ 3.47V | |
Skyworks Solutions
|
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Yes/Yes | Yes/No | 350MHz | Clock, Crystal, LVCMOS | - | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, LVCMOS, LVDS, LVPECL | Yes | 4:4 | 44-QFN (7x7) | Clock Multiplier, Jitter Attenuator | 1.71V ~ 1.89V, 3.14V ~ 3.47V | |
Analog Devices / Maxim Integrated
|
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Yes/Yes | Yes/No | 2.5GHz | Clock | - | Surface Mount | 1 | -40°C ~ 105°C | CML, LVDS | Yes | 1:5 | 40-QFN (5x7) | - | 3.15V ~ 3.45V | |
Analog Devices / Maxim Integrated
|
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Yes/Yes | Yes/No | 3.2GHz | CML, CMOS, LVDS, LVPECL | - | Surface Mount | 1 | -40°C ~ 85°C | CML, LVDS, LVPECL | Yes | 4:14 | 68-LFCSP-VQ (10x10) | Jitter Attenuator | 3.135V ~ 3.465V | |
Skyworks Solutions
|
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Yes/Yes | Yes/No | 1.028GHz | LVCMOS, LVDS, LVPECL, Crystal | - | Surface Mount | 1 | -40°C ~ 85°C | CML, HCSL, LVCMOS, LVDS, LVPECL | Yes | 4:4 | 44-QFN (7x7) | - | 1.71V ~ 3.47V | |
Skyworks Solutions
|
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Yes/Yes | Yes/No | 350MHz | LVCMOS, LVDS, LVPECL, Crystal | - | Surface Mount | 1 | -40°C ~ 85°C | CML, HCSL, LVCMOS, LVDS, LVPECL | Yes | 4:10 | 64-QFN (9x9) | - | 1.71V ~ 3.47V | |
Skyworks Solutions
|
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Yes/Yes | Yes/No | 350MHz | LVCMOS, LVDS, LVPECL, Crystal | - | Surface Mount | 1 | -40°C ~ 85°C | CML, HCSL, LVCMOS, LVDS, LVPECL | Yes | 5:2 | 44-QFN (7x7) | - | 1.71V ~ 3.47V | |
Skyworks Solutions
|
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Yes/Yes | Yes/No | 1.028GHz | LVCMOS, LVDS, LVPECL, Crystal | - | Surface Mount | 1 | -40°C ~ 85°C | CML, HCSL, LVCMOS, LVDS, LVPECL | Yes | 5:2 | 44-QFN (7x7) | - | 1.71V ~ 3.47V | |
Skyworks Solutions
|
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Yes/Yes | Yes/No | 1.028GHz | LVCMOS, LVDS, LVPECL, Crystal | - | Surface Mount | 1 | -40°C ~ 85°C | CML, HCSL, LVCMOS, LVDS, LVPECL | Yes | 5:4 | 44-QFN (7x7) | - | 1.71V ~ 3.47V | |
Analog Devices / Maxim Integrated
|
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Yes/Yes | Yes/No | 3.2GHz | CML, CMOS, LVDS, LVPECL | - | Surface Mount | 1 | -40°C ~ 85°C | CML, LVDS, LVPECL | Yes | 4:14 | 68-LFCSP-VQ (10x10) | - | 3.135V ~ 3.465V | |
Analog Devices / Maxim Integrated
|
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Yes/Yes | Yes/Yes | 2.4GHz | Differential or Single-Ended | - | Surface Mount | 2 | -40°C ~ 85°C | CML, HCSL, LVDS or Single-Ended | Yes | 2:6 | 48-LFCSP (7x7) | Clock Synchronizer | 1.71V ~ 3.465V |
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