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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Cypress Semiconductor
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Analog Devices / Maxim Integrated
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No/Yes | No/No | 450MHz | ECL | Surface Mount | 1 | -40°C ~ 85°C | PECL | No | 2:2 | 8-SOIC | Phase Frequency Detector | 4.75V ~ 5.25V | |
Cypress Semiconductor
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No/No | Yes/No | 200MHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS | Yes with Bypass | 3:12 | 52-TQFP (10x10) | Fanout Distribution, Multiplexer, Zero Delay Buffer | 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
Cypress Semiconductor
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No/Yes | Yes/No | 108MHz | CMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | LVDS | Yes | 1:1 | 8-TSSOP | Clock Generator | 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
Cypress Semiconductor
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No/No | Yes/No | 125MHz | Clock, Crystal | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes with Bypass | 3:12 | 52-TQFP (10x10) | Fanout Distribution, Multiplexer, Spread Spectrum Clock Generator, Zero Delay Buffer | 2.9V ~ 3.6V | |
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Renesas
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No/No | Yes/No | 150MHz | TTL | Surface Mount | 1 | 0°C ~ 70°C (TA) | CMOS, TTL | Yes with Bypass | 2:8 | 28-SSOP | Clock Driver | 3V ~ 3.6V | |
Intersil
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No/No | Yes/No | 25MHz | TTL | Surface Mount | 1 | 0°C ~ 70°C | TTL | No | 1:3 | 20-PLCC (9x9) | Clock Generator, Clock Synchronizer, Fanout Distribution | 4.5V ~ 5.5V | |
Renesas
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No/Yes | Yes/No | 200MHz, 325MHz | HCSL, LVCMOS, LVDS, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, LP-HCSL, LVCMOS, LVDS, LVPECL | Yes | 1:3 | 16-LGA (3x3) | Clock Generator | 1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
Renesas
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No/Yes | Yes/No | 156.25MHz, 200MHz, 325MHz | HCSL, LVCMOS, LVDS, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, LP-HCSL, LVCMOS, LVDS, LVPECL | Yes | 1:3 | 16-LGA (3x3) | Clock Generator | 1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
Renesas
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No/Yes | Yes/No | 200MHz, 325MHz | HCSL, LVCMOS, LVDS, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, LP-HCSL, LVCMOS, LVDS, LVPECL | Yes | 1:3 | 16-LGA (3x3) | Clock Generator | 1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
Renesas
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No/Yes | No/Yes | 156.25MHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS, LVPECL, LVTTL | Yes with Bypass | 2:10 | 40-VFQFPN (6x6) | - | 3V ~ 3.6V | |
Cypress Semiconductor
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No/Yes | No/Yes | 400MHz | Crystal | Surface Mount | 1 | 0°C ~ 70°C (TA) | LVPECL | Yes | 1:2 | 16-TSSOP | Clock Generator, Fanout Distribution | 3V ~ 3.6V | |
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Standard Microsystems
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Cypress Semiconductor
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No/Yes | No/Yes | 400MHz | Crystal | Surface Mount | 1 | 0°C ~ 70°C (TA) | LVPECL | Yes | 1:2 | 16-TSSOP | Clock Generator, Fanout Distribution | 3V ~ 3.6V | |
Cypress Semiconductor
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No/Yes | Yes/Yes | 187.5MHz | Crystal | Surface Mount | 1 | 0°C ~ 70°C | LVPECL | Yes | 1:1 | 8-TSSOP | Clock Generator | 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
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Renesas
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Elantec Semiconductor Inc
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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/Yes | Yes/No | 200MHz, 325MHz | HCSL, LVCMOS, LVDS, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, LP-HCSL, LVCMOS, LVDS, LVPECL | Yes | 1:6 | 24-VFQFPN (4x4) | Clock Generator | 1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
Cypress Semiconductor
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Cypress Semiconductor
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Cypress Semiconductor
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On Semiconductor
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Yes/Yes | No/No | 250MHz | CML, LVDS, NECL, PECL | Surface Mount | 1 | -40°C ~ 85°C | ECL | No | 1:3 | 20-SOIC | Phase Frequency Detector | 3V ~ 5.5V | |
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Analog Devices / Maxim Integrated
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Cypress Semiconductor
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No/Yes | Yes/Yes | 9.375MHz, 400Hz | Crystal | Surface Mount | 1 | 0°C ~ 70°C (TA) | Clock, LVCMOS | Yes | 1:2 | 16-TSSOP | Clock Generator | 3.04V ~ 3.56V | |
Texas Instruments
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No/No | Yes/No | 70MHz | Clock, TTL | Surface Mount | 1 | 0°C ~ 70°C (TA) | Clock, TTL | Yes | 1:1 | 28-PLCC (11.43x11.43) | Phase Lock Loop (PLL) | 4.75V ~ 5.25V | |
Texas Instruments
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No/No | Yes/No | 70MHz | Clock, TTL | Surface Mount | 1 | 0°C ~ 70°C (TA) | Clock, TTL | Yes | 1:1 | 28-PLCC (11.43x11.43) | Phase Lock Loop (PLL) | 4.75V ~ 5.25V | |
Cypress Semiconductor
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Intersil
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Analog Devices / Maxim Integrated
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Yes/No | Yes/No | 550MHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 2:1 | 20-LFCSP (4x4) | Clock/Frequency Synthesizer (RF) | 2.7V ~ 5.5V | |
Texas Instruments
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No/No | Yes/No | 1.47GHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | CMOS | Yes | 2:2 | 36-WQFN (6x6) | Frequency Synthesizer (RF) | 2.8V ~ 3.2V | |
Analog Devices / Maxim Integrated
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Yes/No | Yes/No | 4GHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 2:1 | 16-TSSOP | Clock/Frequency Synthesizer (RF) | 2.7V ~ 5.5V | |
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Skyworks Solutions
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Cypress Semiconductor
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No/No | Yes/Yes | 133MHz | Clock, Crystal | Surface Mount | 1 | 0°C ~ 70°C (TA) | CMOS, TTL | Yes | 1:1 | 8-TSSOP | Clock Generator | 3V ~ 5.5V | |
Cypress Semiconductor
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Cypress Semiconductor
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Cypress Semiconductor
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Yes/No | Yes/No | 200MHz | LVPECL, LVTTL | Surface Mount | 1 | -40°C ~ 85°C (TA) | LVTTL | Yes | 4:10 | 44-TQFP (10x10) | Clock Buffer, Zero Delay Buffer | 2.97V ~ 3.63V | |
Cypress Semiconductor
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No/No | No/No | 166.7MHz | LVCMOS, LVTTL, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | LVCMOS | Yes with Bypass | 3:8 | 28-SSOP | Zero Delay Buffer | 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
Analog Devices / Maxim Integrated
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No/Yes | No/No | 450MHz | ECL | Surface Mount | 1 | -40°C ~ 85°C | PECL | Yes | 2:4 | 8-µMAX | Frequency Synthesizer | 4.2V ~ 5.5V | |
Renesas
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No/Yes | Yes/No | 200MHz, 325MHz | HCSL, LVCMOS, LVDS, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, LP-HCSL, LVCMOS, LVDS, LVPECL | Yes | 1:3 | 16-LGA (3x3) | Clock Generator | 1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
Renesas
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No/Yes | Yes/No | 200MHz, 325MHz | HCSL, LVCMOS, LVDS, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, LP-HCSL, LVCMOS, LVDS, LVPECL | Yes | 1:3 | 16-LGA (3x3) | Clock Generator | 1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
Renesas
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No/Yes | Yes/No | 200MHz, 325MHz | HCSL, LVCMOS, LVDS, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, LP-HCSL, LVCMOS, LVDS, LVPECL | Yes | 1:3 | 16-LGA (3x3) | Clock Generator | 1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
Cypress Semiconductor
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Cypress Semiconductor
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No/No | Yes/Yes | 110MHz | LVTTL | Surface Mount | 1 | 0°C ~ 70°C | LVTTL | Yes | 1:8 | 32-PLCC (11.43x13.97) | Clock Buffer, Zero Delay Buffer | 2.97V ~ 3.63V | |
Cypress Semiconductor
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No/No | Yes/Yes | 110MHz | LVTTL | Surface Mount | 1 | 0°C ~ 70°C | LVTTL | Yes | 1:8 | 32-PLCC (11.43x13.97) | Clock Buffer, Zero Delay Buffer | 2.97V ~ 3.63V | |
Analog Devices / Maxim Integrated
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No/Yes | No/No | 450MHz | ECL | Surface Mount | 1 | -40°C ~ 85°C | PECL | Yes | 2:4 | 8-SOIC | Frequency Synthesizer | 4.2V ~ 5.5V | |
Analog Devices / Maxim Integrated
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Yes/No | No/No | 7GHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 2:1 | 20-LFCSP (4x4) | Clock/Frequency Synthesizer (RF) | 2.7V ~ 3.3V | |
Analog Devices / Maxim Integrated
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Yes/No | Yes/Yes | 3.5GHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 2:1 | 32-LFCSP-WQ (5x5) | - | 3V ~ 3.6V | |
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Infineon Technologies
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No/No | No/No | 133.33MHz | LVCMOS, LVTTL | Surface Mount | 1 | 0°C ~ 70°C | LVCMOS | Yes with Bypass | 1:9 | 16-SOIC | Fanout Buffer (Distribution), Zero Delay Buffer | 3V ~ 3.6V | |
Standard Microsystems
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Skyworks Solutions
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