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 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
On Semiconductor
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Yes/Yes | Yes/No | 2.8GHz | CML, LVDS, NECL, PECL | Surface Mount | 1 | -40°C ~ 85°C | ECL | No | 1:3 | 16-TSSOP | Clock Generator | 2.375V ~ 3.8V | |
On Semiconductor
|
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- | - | 2.8GHz | ECL | Surface Mount | - | -40°C ~ 85°C | ECL | - | - | 16-SOIC | Clock Generator | 2.375V ~ 3.8V | |
Renesas
|
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No/No | Yes/No | 36MHz | CMOS, TTL | Through Hole | 1 | -40°C ~ 85°C | CMOS, TTL | Yes | 3:1 | 16-PDIP | Phase Lock Loop (PLL) | 5V | |
Renesas
|
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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 | |
Renesas
|
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No/No | Yes/No | 36MHz | CMOS, TTL | Through Hole | 1 | -40°C ~ 85°C | CMOS, TTL | Yes | 3:1 | 16-PDIP | Phase Lock Loop (PLL) | 5V | |
Renesas
|
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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 | |
Infineon Technologies
|
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- | - | - | - | Surface Mount | - | - | - | - | - | 8-TSSOP | - | - | |
Nisshinbo Micro Devices
|
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No/No | Yes/No | 1GHz | Crystal | Surface Mount | 1 | -20°C ~ 75°C | Clock | Yes | 1:1 | 16-SSOP | PLL Frequency Synthesizer | 4.5V ~ 5.5V | |
Nisshinbo Micro Devices
|
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No/No | Yes/No | 1GHz | Crystal | Surface Mount | 1 | -20°C ~ 85°C | Clock | Yes | 1:1 | 16-SSOP | PLL Frequency Synthesizer | 4.5V ~ 5.5V | |
|
Analog Devices / Maxim Integrated
|
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No/No | Yes/No | 16.6MHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | Clock | No | 2:1 | 8-uMAX/uSOP | Clock Generator | 2.7V ~ 3.6V | |
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Analog Devices / Maxim Integrated
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No/No | Yes/No | 2MHz | Clock | Surface Mount | - | -40°C ~ 85°C | Clock | No | 2:4 | 8-uMAX/uSOP | Clock Generator | 3V ~ 3.6V | |
|
Skyworks Solutions
|
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No/No | Yes/No | 1GHz | Crystal | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 1:1 | 28-MLP-EP (5x5) | Frequency Synthesizer | 2.7V ~ 3.6V | |
Silicon Labs
|
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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 | |
Infineon Technologies
|
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- | - | - | - | Surface Mount | - | - | - | - | - | 8-TSSOP | - | - | |
Skyworks Solutions
|
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No/No | Yes/No | 2.3GHz | 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 | 2.5GHz | 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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Yes/Yes | Yes/Yes | 668MHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | CML | Yes with Bypass | 1:2 | 20-MLP (4x4) | Clock Multiplier | 2.375V ~ 2.625V | |
Silicon Labs
|
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Yes/Yes | Yes/Yes | 693MHz | LVTTL | Surface Mount | 1 | -20°C ~ 85°C | CML | Yes | 1:1 | 63-CBGA (9x9) | Clock Multiplier | 3.135V ~ 3.465V | |
Silicon Labs
|
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Yes/Yes | Yes/Yes | 2.8GHz | LVTTL | Surface Mount | 1 | -20°C ~ 85°C | CML | Yes | 1:1 | 63-CBGA (9x9) | Clock Multiplier | 3.135V ~ 3.465V | |
Skyworks Solutions
|
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Yes/Yes | No/Yes | 675MHz | Clock | Surface Mount | 1 | -20°C ~ 85°C | CML | Yes | 3:4 | 99-CBGA (11x11) | Clock Generator | 3.135V ~ 3.465V | |
NXP Semiconductors
|
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No/No | Yes/Yes | 55MHz | TTL | Surface Mount | 1 | 0°C ~ 70°C | CMOS, TTL | Yes | 3:8 | 28-PLCC (11.51x11.51) | Clock Driver, Fanout Distribution, Multiplexer | 4.75V ~ 5.25V | |
NXP Semiconductors
|
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No/No | Yes/Yes | 70MHz | TTL | Surface Mount | 1 | 0°C ~ 70°C | CMOS, TTL | Yes | 3:8 | 28-PLCC (11.51x11.51) | Clock Driver, Fanout Distribution, Multiplexer | 4.75V ~ 5.25V | |
NXP Semiconductors
|
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No/No | Yes/Yes | 133MHz | TTL | Surface Mount | 1 | 0°C ~ 70°C | CMOS, TTL | Yes | 3:8 | 28-PLCC (11.51x11.51) | Clock Driver, Fanout Distribution, Multiplexer | 4.75V ~ 5.25V | |
Skyworks Solutions
|
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Yes/Yes | Yes/Yes | 2.8GHz | LVTTL | Surface Mount | 1 | -20°C ~ 85°C | CML | Yes | 1:1 | 63-CBGA (9x9) | Clock Multiplier | 3.135V ~ 3.465V | |
NXP Semiconductors
|
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No/No | Yes/Yes | 100MHz | TTL | Surface Mount | 1 | 0°C ~ 70°C | CMOS, TTL | Yes | 3:8 | 28-PLCC (11.51x11.51) | Clock Driver, Fanout Distribution, Multiplexer | 3V ~ 3.6V | |
NXP Semiconductors
|
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Yes/No | Yes/Yes | 240MHz | LVCMOS, LVPECL | Surface Mount | 1 | 0°C ~ 70°C | LVCMOS | Yes with Bypass | 2:6 | 32-LQFP (7x7) | Clock Generator, Fanout Distribution, Multiplexer, Zero Delay Buffer | 3.135V ~ 3.465V | |
|
NXP Semiconductors
|
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No/No | Yes/No | 240MHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS | Yes with Bypass | 3:12 | 52-TQFP (10x10) | Clock Generator, Fanout Distribution, Multiplexer, Zero Delay Buffer | 3.135V ~ 3.465V | |
Analog Devices / Maxim Integrated
|
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No/No | Yes/No | 2.725GHz | CMOS | Surface Mount | - | - | Clock | Yes | 1:2 | 24-LFCSP (4x4) | Fanout Distribution, Integer N Synthesizer (RF) | 3V ~ 3.6V | |
NXP Semiconductors
|
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Yes/No | Yes/No | 125MHz | LVCMOS, LVPECL | Surface Mount | 1 | 0°C ~ 70°C | LVCMOS | Yes with Bypass | 1:8 | 32-LQFP (7x7) | Clock Generator, Fanout Distribution, Multiplexer, Zero Delay Buffer | 3.135V ~ 3.465V | |
Infineon Technologies
|
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No/No | Yes/No | 66.6MHz, 90MHz | Clock, Crystal | Surface Mount | 1 | 0°C ~ 70°C | Clock, Crystal | Yes | 1:8 | 20-SOIC | Clock Generator, Fanout Distribution | 3.3V, 5V | |
|
Infineon Technologies
|
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No/No | No/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 | |
Texas Instruments
|
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No/No | Yes/No | 2.2GHz, 440.76MHz | Clock | Surface Mount | 1 | -30°C ~ 85°C | Clock | Yes with Bypass | 2:1 | 28-WQFN (5x5) | PLL Frequency Synthesizer, Delta Sigma | 2.7V ~ 3.3V | |
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 | 16-TSSOP | Fractional N Synthesizer (RF) | 2.7V ~ 3.3V | |
Skyworks Solutions
|
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No/No | Yes/No | 2.3GHz | Crystal | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 1:2 | 28-QFN (5x5) | Frequency Synthesizer | 2.7V ~ 3.6V | |
Silicon Labs
|
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Yes/Yes | Yes/Yes | 173MHz | LVTTL | Surface Mount | 1 | -20°C ~ 85°C | LVTTL | Yes | 1:1 | 63-CBGA (9x9) | Clock Multiplier | 3.135V ~ 3.465V | |
|
Microchip Technology
|
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Yes/Yes | Yes/No | 1.5GHz | LVECL, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | LVPECL | No | 2:15 | 52-LQFP (10x10) | Clock Generator | 3V ~ 3.6V | |
Microchip Technology
|
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Yes/Yes | No/No | 10.7GHz | CML, PECL | Surface Mount | 1 | -40°C ~ 85°C | CML | No | 2:1 | 16-MLF® (3x3) | Clock/Frequency Synthesizer | 2.375V ~ 3.6V | |
Microchip Technology
|
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Yes/Yes | Yes/No | 1.12GHz | PECL | Surface Mount | 1 | 0°C ~ 85°C | PECL | Yes | 2:2 | 20-SOIC | Phase Lock Loop (PLL) | 3.135V ~ 5.25V | |
Infineon Technologies
|
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- | - | - | - | Surface Mount | - | - | - | - | - | 8-SOIC | - | - | |
Microchip Technology
|
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No/Yes | Yes/No | 800MHz | Crystal | Surface Mount | 1 | 0°C ~ 75°C | PECL | Yes | 1:1 | 28-PLCC (11.48x11.48) | Frequency Synthesizer | 3.135V ~ 5.25V | |
|
Microchip Technology
|
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Yes/Yes | Yes/No | 1.5GHz | LVECL, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | LVPECL | No | 2:15 | 52-LQFP (10x10) | Clock Generator | 3V ~ 3.6V | |
Microchip Technology
|
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Yes/Yes | No/No | 10.7GHz | CML, PECL | Surface Mount | 1 | -40°C ~ 85°C | CML | No | 2:1 | 16-MLF® (3x3) | Clock/Frequency Synthesizer | 2.375V ~ 3.6V | |
|
Microchip Technology
|
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Price and Stock
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Yes/Yes | Yes/No | 1.12GHz | PECL | - | 1 | 0°C ~ 85°C | PECL | Yes | 2:2 | - | Phase Lock Loop (PLL) | 3.135V ~ 5.25V | |
Microchip Technology
|
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No/Yes | Yes/No | 800MHz | Crystal | Surface Mount | 1 | 0°C ~ 75°C | PECL | Yes | 1:1 | 28-SOIC | Frequency Synthesizer | 3.135V ~ 5.25V | |
Nisshinbo Micro Devices
|
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No/No | No/No | 500kHz | Clock | Through Hole | 1 | -40°C ~ 85°C | Clock | Yes | 1:1 | 8-DIP | Phase Lock Loop (PLL) | 4.75V ~ 9V | |
Nisshinbo Micro Devices
|
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No/No | Yes/No | 1GHz | Crystal | Surface Mount | 1 | -20°C ~ 75°C | Clock | Yes | 1:1 | 16-SSOP | PLL Frequency Synthesizer | 4.5V ~ 5.5V | |
Aurasemi
|
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Yes/Yes | Yes/No | 2.1GHz | CML, Crystal, HCSL, LVCMOS, LVDS, LVPECL | Surface Mount | 4 | -40°C ~ 85°C (TA) | CML, HCSL, LVCMOS, LVDS, LVPECL | Yes | - | 64-QFN (9x9) | Jitter Attenuator | 1.71V ~ 1.89V, 2.375V ~ 2.625V, 2.97V ~ 3.63V | |
Harris Semiconductor
|
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- | - | - | - | - | - | - | - | - | - | - | - | - | |
Texas Instruments
|
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Yes/Yes | Yes/Yes | 1.296GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS, 2VPECL, LVPECL | Yes | 3:7 | 48-WQFN (7x7) | Clock Conditioner | 3.15V ~ 3.45V | |
|
Renesas
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- | - | - | - | - | - | - | - | - | - | - | - | - |
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