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 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | |
Renesas
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No/No | Yes/No | 250MHz | LVCMOS, LVTTL | Surface Mount | 1 | 0°C ~ 70°C | LVCMOS | No | 1:20 | 48-TQFP (7x7) | Clock Generator, Fanout Distribution, Multiplexer | 3.135V ~ 3.465V | |
STMicroelectronics
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Yes/Yes | Yes/Yes | 4GHz, 8GHz, 16GHz | CMOS, LVDS, LVPECL, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | Clock, CMOS | Yes with Bypass | 3:2 | 36-VFQFPN (6x6) | Frequency Synthesizer (RF) | 3V ~ 5.4V, 3.6V ~ 5.4V | |
Analog Devices / Maxim Integrated
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No/Yes | Yes/Yes | 4.16GHz | CMOS | Surface Mount | 1 | -40°C ~ 85°C | CMOS | Yes | 1:1 | 40-SMT (6x6) | - | 3V ~ 5.2V | |
Renesas
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Yes/Yes | Yes/No | 867MHz | LVCMOS, LVDS, LVHSTL, LVPECL, Crystal | Surface Mount | 1 | -40°C ~ 85°C | HCSL, LVCMOS, LVDS, LVPECL | Yes | 2:4 | 40-VFQFPN (6x6) | Jitter Attenuator | 1.71V ~ 3.465V | |
Cypress Semiconductor
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Analog Devices / Maxim Integrated
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Yes/Yes | Yes/No | 3.74GHz | 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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No/Yes | Yes/Yes | 5.1GHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 1:1 | 40-SMT (6x6) | - | 3V ~ 5.2V | |
Texas Instruments
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Yes/Yes | Yes/No | 1.296GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | LVDS, LVPECL | No | 1:8 | 48-WQFN (7x7) | Clock Conditioner | 3.15V ~ 3.45V | |
Cirrus Logic Inc.
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No/No | Yes/Yes | 75MHz | Clock | Surface Mount | 1 | -40°C ~ 105°C | Clock | Yes | 2:2 | 10-MSOP | Fractional N Synthesizer | 3.1V ~ 3.5V | |
Analog Devices / Maxim Integrated
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Yes/No | Yes/Yes | 6.1GHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 125°C | Clock | Yes | 2:1 | 24-LFCSP (4x4) | Fractional N Synthesizer (RF) | 2.7V ~ 3.3V | |
Renesas
|
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Yes/Yes | Yes/No | 1GHz | HCSL, LVCMOS, LVDSM, LVHSTL, LVPECL, Crystal | Surface Mount | 1 | -40°C ~ 85°C | HSCL, LVCMOS, LVDS, LVPECL | Yes with Bypass | 3:8 | 56-VFQFPN (8x8) | - | 2.375V ~ 3.465V | |
Analog Devices / Maxim Integrated
|
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No/Yes | Yes/Yes | 2.415GHz | CMOS, Differential or Single-Ended, LVDS, LVPECL | Surface Mount | 2 | -40°C ~ 85°C | CML, CMOS, HCSL, LVDS or Single-Ended | Yes | 4:5 | 48-LFCSP (7x7) | Clock Synthesizer | 1.71V ~ 1.89V, 1.71V ~ 3.465V | |
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Renesas
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Sanyo Denki
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No/No | No/No | 36MHz | Clock | Surface Mount | 1 | -20°C ~ 85°C (TA) | LVCMOS | Yes | 1:1 | 8-WDFN (2x2) | Clock Driver | 2.3V ~ 3.6V | |
Analog Devices / Maxim Integrated
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Yes/Yes | Yes/No | 2.4GHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 3:1 | 20-LFCSP (4x4) | Clock/Frequency Synthesizer (RF/IF) | 2.7V ~ 3.3V | |
Skyworks Solutions
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No/No | Yes/No | 200MHz | CMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS | Yes | 3:8 | 24-QFN (4x4) | Clock Generator | 1.71V ~ 3.63V | |
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Infineon Technologies
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No/No | No/No | 133.3MHz | LVCMOS, LVTTL | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS | Yes with Bypass | 1:8 | 16-SOIC | Fanout Buffer (Distribution), Zero Delay Buffer | 3V ~ 3.6V | |
Analog Devices / Maxim Integrated
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No/No | Yes/No | 133MHz | Clock | Surface Mount | 1 | 0°C ~ 70°C | Clock | No | 1:2 | 8-SOIC | Frequency Synthesizer | 4.75V ~ 5.25V | |
Infineon Technologies
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No/No | Yes/No | 166.6MHz | LVCMOS, LVTTL, Crystal | Surface Mount | 1 | -40°C ~ 85°C | CMOS | Yes | 1:6 | 16-TSSOP | Clock Generator, Fanout Distribution | 2.375V ~ 3.465V | |
Microchip Technology
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Yes/Yes | Yes/Yes | 1.035GHz | CML, CMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | CML, CMOS | Yes with Bypass | 4:3 | 32-QFN (5x5) | - | 1.71V ~ 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 | |
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 | 3:12 | 48-QFN (6x6) | Clock Generator | 1.71V ~ 3.63V | |
Texas Instruments
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No/No | Yes/Yes | 14GHz | Clock | Surface Mount | 1 | -40°C ~ 125°C | Clock | Yes | 2:1 | 24-WQFN (4x4) | Frequency Synthesizer (RF) | 3.15V ~ 3.45V | |
Analog Devices / Maxim Integrated
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Yes/Yes | Yes/No | 1.8GHz | 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 | |
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 | |
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Infineon Technologies
|
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No/No | Yes/No | 60MHz, 80MHz | Clock, Crystal | Surface Mount | 1 | -40°C ~ 85°C | CMOS | Yes | 1:6 | 16-SOIC | Clock Generator, Fanout Distribution | 3.3V, 5V | |
Analog Devices / Maxim Integrated
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Yes/Yes | Yes/No | 2.95GHz | CMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | LVDS, LVPECL | Yes | 1:12 | 48-LFCSP-VQ (7x7) | Clock Generator, Fanout Distribution | 3.135V ~ 3.465V | |
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 | 3:8 | 40-QFN (6x6) | Clock Generator | 1.71V ~ 3.63V | |
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 | 4:4 | 44-QFN (7x7) | Clock Multiplier, Jitter Attenuator | 1.71V ~ 1.89V, 3.14V ~ 3.47V | |
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On Semiconductor
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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 | 5:4 | 64-QFN (9x9) | - | 1.71V ~ 3.47V | |
Skyworks Solutions
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Yes/Yes | Yes/No | 712.5MHz | LVCMOS, LVDS, LVPECL, Crystal | Surface Mount | 1 | -40°C ~ 85°C | CML, HCSL, LVCMOS, LVDS, LVPECL | Yes | 5:8 | 64-QFN (9x9) | - | 1.71V ~ 3.47V | |
Skyworks Solutions
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Yes/Yes | Yes/Yes | 808MHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | CML, LVCMOS, LVDS, LVPECL | Yes | 8:8 | 80-PBGA (10x10) | Clock Generator, Jitter Attenuator | 1.71V ~ 2.75V | |
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Analog Devices / Maxim Integrated
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No/No | Yes/No | 16MHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | Clock | No | 2:1 | 8-uMAX/uSOP | Clock Generator | 2.7V ~ 3.6V | |
Texas Instruments
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No/No | Yes/Yes | 14GHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 2:1 | 24-WQFN (4x4) | Frequency Synthesizer (RF) | 3.15V ~ 3.45V | |
Renesas
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No/No | Yes/No | 32.768kHz | Crystal | Surface Mount | 3 | -40°C ~ 85°C | LVCMOS | Yes | 1:3 | 12-DFN (2.5x2.5) | Clock Generator | 1.71V ~ 1.89V | |
Texas Instruments
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No/No | No/No | 38MHz | CMOS | Through Hole | 1 | -55°C ~ 125°C | CMOS | Yes | 1:2 | 16-PDIP | Phase Lock Loop (PLL) | 4.5V ~ 5.5V | |
Renesas
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No/No | Yes/Yes | 32.768kHz | Crystal | Surface Mount | 3 | -40°C ~ 85°C | LVCMOS | Yes | 1:3 | 12-DFN (2.5x2.5) | Clock Generator | 1.71V ~ 1.89V | |
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On Semiconductor
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Renesas
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Yes/Yes | Yes/No | 350MHz | HCSL, LVCMOS, LVDS, LVPECL, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | HCSL, LVCMOS, LVDS, LVPECL | Yes | 2:2 | 24-QFN (4x4) | Clock Generator | 1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
Renesas
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No/Yes | Yes/Yes | 500MHz | LVCMOS, LVTTL, Crystal | Surface Mount | 1 | -40°C ~ 85°C | HCSL, LVCMOS, LVDS, LVPECL, LVTTL | Yes with Bypass | 2:7 | 32-VFQFPN (5x5) | Clock Generator, Multiplexer | 3.135V ~ 3.465V | |
|
Infineon Technologies
|
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No/No | No/No | 133.3MHz | LVCMOS, LVTTL | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS | Yes with Bypass | 1:8 | 16-SOIC | Fanout Buffer (Distribution), Zero Delay Buffer | 3V ~ 3.6V | |
Renesas
|
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No/Yes | Yes/Yes | 500MHz | LVCMOS, LVTTL, Crystal | Surface Mount | 1 | -40°C ~ 85°C | HCSL, LVCMOS, LVDS, LVPECL, LVTTL | Yes with Bypass | 2:7 | 32-VFQFPN (5x5) | Clock Generator, Multiplexer | 3.135V ~ 3.465V | |
Renesas
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Yes/Yes | No/No | 400MHz | HCSL | Surface Mount | 1 | -40°C ~ 85°C | HCSL | Yes with Bypass | 2:12 | 72-VFQFPN (10x10) | - | 3.135V ~ 3.465V | |
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Sanyo Denki
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|
Renesas
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Renesas
|
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No/Yes | Yes/No | 200MHz | Crystal | Surface Mount | 1 | -40°C ~ 85°C | LVPECL | Yes with Bypass | 1:4 | 32-VFQFN (5x5) | - | 2.375V ~ 3.465V | |
Texas Instruments
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Yes/Yes | Yes/No | 1.724GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | LVPECL | Yes | 1:4 | 48-WQFN (7x7) | Clock Conditioner | 3.15V ~ 3.45V |
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