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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Renesas
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Yes/Yes | Yes/No | 6GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 95°C | LVDS, LVPECL | Yes | 2:17 | 76-VFQFN (9x9) | Clock Generator, Jitter Attenuator | 1.7V ~ 1.9V, 2.4V ~ 2.6V, 3.2V ~ 3.4V | |
Microchip Technology
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Yes/Yes | Yes/No | 1.035GHz | CMOS, Crystal | Surface Mount | 2 | -40°C ~ 85°C | CML, CMOS | Yes with Bypass | 4:3 | 64-LGA (10x5) | Clock Multiplier, Frequency Synthesizer | 1.71V ~ 3.465V | |
Skyworks Solutions
|
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Yes/Yes | Yes/No | 1GHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | CML, HCSL, LVDS, LVPECL, LVCMOS | Yes | 4:12 | 64-QFN (9x9) | Clock Generator | 1.71V ~ 3.47V | |
Skyworks Solutions
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Yes/Yes | Yes/No | 350MHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | CML, HCSL, LVDS, LVPECL, LVCMOS | Yes | 4:12 | 64-QFN (9x9) | Clock Generator | 1.71V ~ 3.47V | |
Analog Devices / Maxim Integrated
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Yes/Yes | Yes/No | 2.25GHz | CMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | CMOS, LVPECL | Yes | 2:12, 2:24 | 64-LFCSP-VQ (9x9) | Clock Generator, Fanout Distribution | 3.135V ~ 3.465V | |
Renesas
|
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Yes/Yes | Yes/No | 1GHz | HCSL, LVCMOS, LVDS, LVHSTL, LVPECL, Crystal | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS, LVDS, LVPECL | Yes with Bypass | 3:8 | 56-VFQFPN (8x8) | - | 2.375V ~ 3.465V | |
Renesas
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Yes/Yes | Yes/Yes | 54MHz | LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 105°C | LVDS, LVPECL | Yes | 2:16 | 88-VFQFPN (10x10) | Clock Generator, Clock Synchronizer | 1.8V ~ 3.3V | |
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 | 5:4 | 44-QFN (7x7) | - | 1.71V ~ 3.47V | |
Skyworks Solutions
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Yes/Yes | Yes/No | 350MHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | CML, HCSL, LVCMOS, LVDS, LVPECL | Yes | 5:7 | 64-QFN (9x9) | - | 1.71V ~ 1.89V, 3.13V ~ 3.47V | |
Skyworks Solutions
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Yes/Yes | Yes/No | 720MHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, LVCMOS, LVDS, LVPECL | Yes | 4:8 | 64-QFN (9x9) | Clock Multiplier, Jitter Attenuator | 1.71V ~ 1.89V, 3.14V ~ 3.47V | |
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On Semiconductor
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- | - | - | - | - | - | - | - | - | - | - | - | - | |
Texas Instruments
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Yes/No | No/No | 3.6GHz, 1.7GHz | CMOS | Surface Mount | 1 | -40°C ~ 85°C | CMOS | Yes with Bypass | 3:2 | 20-ULGA (3.5x3.5) | PLL Frequency Synthesizer | 2.25V ~ 2.75V | |
Sanyo Denki
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- | - | - | - | Surface Mount | - | - | - | - | - | 16-TSSOP | - | - | |
Analog Devices / Maxim Integrated
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No/No | No/No | - | Crystal | Surface Mount | 1 | -40°C ~ 125°C | Clock | No | 1:1 | 8-µMAX | Clock Generator | 2.7V ~ 5.5V | |
Texas Instruments
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Texas Instruments
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No/No | Yes/No | 1.1GHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | CMOS | Yes with Bypass | 3:1 | 16-CSP (3.5x3.5) | PLL Frequency Synthesizer | 2.7V ~ 5.5V | |
Texas Instruments
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On Semiconductor
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On Semiconductor
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Yes/Yes | No/No | 750MHz | Clock | Surface Mount | 1 | 0°C ~ 85°C (TC) | Clock | No | 2:8 | 28-PLCC (11.51x11.51) | Clock Driver | 4.2V ~ 5.7V | |
Texas Instruments
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Texas Instruments
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Analog Devices / Maxim Integrated
|
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Yes/No | No/Yes | 4GHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 2:1 | 20-LFCSP (4x4) | Fractional N Synthesizer (RF) | 2.7V ~ 3.3V | |
|
Renesas
|
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On Semiconductor
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Yes/Yes | No/No | 750MHz | Clock | Surface Mount | 1 | 0°C ~ 85°C (TC) | Clock | No | 1:9 | 28-PLCC (11.51x11.51) | Clock Driver | 4.2V ~ 5.7V | |
Infineon Technologies
|
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No/No | No/No | 133.33MHz | LVCMOS, LVTTL | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS | Yes | 1:5 | 8-SOIC | Fanout Buffer (Distribution), Zero Delay Buffer | 3V ~ 3.6V | |
Zarlink Semiconductor Inc
|
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No/No | Yes/No | 20MHz | Clock | Through Hole | 1 | -30°C ~ 70°C | TTL | No | 2:4 | - | Frequency Synthesizer | 2.7V ~ 5.5V | |
Infineon Technologies
|
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No/No | No/No | 133.33MHz | LVCMOS, LVTTL | Surface Mount | 1 | 0°C ~ 70°C | LVCMOS | Yes | 1:5 | 8-SOIC | Fanout Buffer (Distribution), Zero Delay Buffer | 3V ~ 3.6V | |
Microchip Technology
|
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Yes/Yes | Yes/No | 3.2GHz | CML, LVDS, PECL | Surface Mount | 1 | -40°C ~ 85°C | LVPECL | No | 1:1 | 16-QFN (3x3) | Clock Divider | 2.375V ~ 3.6V | |
Texas Instruments
|
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No/No | Yes/No | 3.132GHz | Clock | Surface Mount | 1 | -40°C ~ 85°C (TA) | CMOS | Yes | 2:2 | 36-WQFN (6x6) | Frequency Synthesizer (RF) | 2.8V ~ 3.2V | |
Cypress Semiconductor
|
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- | - | - | - | - | - | - | - | - | - | - | - | - | |
Skyworks Solutions
|
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Yes/Yes | No/Yes | 200MHz | Clock, Crystal | Surface Mount | 1 | -40°C ~ 85°C | CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL | Yes with Bypass | 1:4 | 24-QFN (4x4) | Clock Generator | 1.71V ~ 3.63V | |
Analog Devices / Maxim Integrated
|
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Yes/No | No/No | 2GHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 3:1 | 20-TSSOP | Clock/Frequency Synthesizer (RF) | 2.7V ~ 5.5V | |
Analog Devices / Maxim Integrated
|
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Yes/No | No/Yes | 4GHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 2:1 | 20-LFCSP (4x4) | Fractional N Synthesizer (RF) | 2.7V ~ 3.3V | |
|
Renesas
|
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Texas Instruments
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No/No | Yes/No | 2.24GHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 2:2 | 36-WQFN (6x6) | Frequency Synthesizer (RF) | 3.15V ~ 3.45V | |
|
Microchip Technology
|
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No/Yes | Yes/No | 300MHz, 875MHz | HCSL, LVCMOS, LVDS, LVPECL, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | HCSL, LVCMOS, LVDS, LVPECL | Yes with Bypass | 2:6 | 24-QFN (4x4) | Clock Generator | 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
Cypress Semiconductor
|
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Analog Devices / Maxim Integrated
|
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Yes/No | Yes/No | 3GHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 2:1 | 20-LFCSP (4x4) | Clock/Frequency Synthesizer (RF) | 2.7V ~ 5.5V | |
Analog Devices / Maxim Integrated
|
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Yes/No | No/No | 2.7GHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 3:1 | 20-TSSOP | Clock/Frequency Synthesizer (RF/IF) | 2.7V ~ 5.5V | |
|
Infineon Technologies
|
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No/No | Yes/No | 66.6MHz, 90MHz | Clock, Crystal | Surface Mount | 1 | 0°C ~ 70°C | CMOS | Yes | 1:6 | 16-SOIC | Clock Generator, Fanout Distribution | 3.3V, 5V | |
Texas Instruments
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Yes/Yes | No/No | - | Clock | Surface Mount | 1 | 0°C ~ 85°C | Clock | No | 3:4 | 16-SOP | Clock Driver | 4.2V ~ 5.7V | |
Renesas
|
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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 | 24-TSSOP | Frequency Synthesizer | 2.7V ~ 3.6V | |
Infineon Technologies
|
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No/No | Yes/Yes | 133.3MHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 1:4 | 8-SOIC | Fanout Buffer (Distribution), Zero Delay Buffer | 3V ~ 3.6V | |
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Renesas
|
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Analog Devices / Maxim Integrated
|
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Yes/Yes | Yes/Yes | 312.5MHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | CMOS, HCSL, HSTL, LVDS | Yes with Bypass | 2:7 | 48-LFCSP (7x7) | - | 2.97V ~ 3.63V | |
Infineon Technologies
|
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No/No | Yes/No | 200MHz | LVCMOS, LVTTL, Crystal | Surface Mount | 1 | 0°C ~ 70°C | CMOS | Yes | 1:6 | 16-TSSOP | Clock Generator, Fanout Distribution | 2.375V ~ 3.465V | |
|
Infineon Technologies
|
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No/No | Yes/Yes | 133.3MHz | LVCMOS, LVTTL | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS | Yes | 1:8 | 16-SOIC | Fanout Buffer (Distribution), Zero Delay Buffer | 3V ~ 3.6V | |
Rochester Electronics
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Renesas
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