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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Texas Instruments
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Yes/Yes | Yes/Yes | 2.16GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C (TA) | LVCMOS, LVDS, 2VPECL, LVPECL | Yes | 2:6 | 48-WQFN (7x7) | Clock Conditioner | 3.15V ~ 3.45V | |
Standard Microsystems
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Standard Microsystems
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Standard Microsystems
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Renesas
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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 | |
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 | |
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 | |
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 | |
Renesas
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Yes/Yes | Yes/No | - | CML, CMOS, HCSL, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, CMOS, HCSL, LVDS or Single-Ended | Yes | 2:12 | 40-VFQFPN (5x5) | Clock Generator | 1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
Standard Microsystems
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Standard Microsystems
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Cirrus Logic Inc.
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No/No | Yes/Yes | 75MHz | Clock | Surface Mount | 1 | -10°C ~ 70°C | Clock | Yes | 1:2 | 10-MSOP | Fanout Distribution, Fractional N Synthesizer | 3.1V ~ 3.5V | |
Cypress Semiconductor
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No/No | No/Yes | 500MHz, 1.5GHz | Clock, Crystal | Surface Mount | 1 | 0°C ~ 70°C (TA) | LVPECL | Yes | 2:4 | 36-VFBGA (6x8) | Clock Generator | 3.135V ~ 3.465V | |
Analog Devices / Maxim Integrated
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Yes/No | Yes/No | - | CMOS, TTL, Crystal | Surface Mount | 1 | -55°C ~ 125°C (TA) | CMOS | Yes | 2:1 | 16-TSSOP | Clock/Frequency Synthesizer (RF), Phase Detector | 2.7V ~ 3.3V | |
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Standard Microsystems
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Analog Devices / Maxim Integrated
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No/No | Yes/No | 133MHz | Clock, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | Clock, LVCMOS | Yes | 2:6 | 20-TQFN (5x5) | Spread Spectrum Clock Generator | 3V ~ 3.6V | |
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 | |
Texas Instruments
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Yes/Yes | Yes/No | 1.08GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS, 2VPECL, LVPECL | Yes | 2:7 | 48-WQFN (7x7) | - | 3.15V ~ 3.45V | |
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-LGA (4x4) | 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 | 1:6 | 24-LGA (4x4) | 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 | 1:6 | 24-LGA (4x4) | Clock Generator | 1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
Renesas
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Yes/Yes | Yes/No | - | CML, CMOS, HCSL, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, CMOS, HCSL, LVDS or Single-Ended | Yes | 2:12 | 48-VFQFPN (6x6) | Clock Generator | 1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
Renesas
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Harris Semiconductor
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No/No | Yes/No | 25MHz | TTL, Crystal | Through Hole | 1 | 0°C ~ 70°C (TA) | CMOS, TTL | No | 1:3 | 24-CERDIP | Clock Generator | 4.5V ~ 5.5V | |
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Standard Microsystems
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Intel
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Standard Microsystems
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Standard Microsystems
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Cypress Semiconductor
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Cypress Semiconductor
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Renesas
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Analog Devices / Maxim Integrated
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No/No | Yes/No | 133MHz | Clock, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | Clock, LVCMOS | Yes | 5:15 | 32-TQFN-EP (5x5) | Clock Generator | 3V ~ 3.6V | |
Renesas
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Yes/Yes | Yes/No | - | CML, CMOS, HCSL, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, CMOS, HCSL, LVDS or Single-Ended | Yes | 2:12 | - | Clock Generator | 1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
Analog Devices / Maxim Integrated
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Yes/Yes | Yes/No | 1.25GHz | Clock, Crystal | Surface Mount | 1 | -40°C ~ 85°C | CMOS, HCSL, HSTL, LVDS | Yes | 3:11 | 64-LFCSP (9x9) | Clock Generator, Frequency Synthesizer | 2.38V ~ 3.63V | |
Renesas
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Yes/Yes | Yes/No | - | CML, CMOS, HCSL, LVDS, LVPECL | Surface Mount | 2 | -40°C ~ 85°C (TA) | CML, CMOS, HCSL, LVDS or Single-Ended | Yes | 2:12 | 48-VFQFPN (6x6) | Jitter Attenuator, Network Synchronizer | 1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
Renesas
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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 | |
Cypress Semiconductor
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No/No | Yes/No | 80MHz | CMOS | Surface Mount | 1 | 0°C ~ 70°C (TA) | CMOS | Yes | 1:8 | 32-PLCC (11.43x13.97) | Fanout Buffer (Distribution), Zero Delay Buffer | 4.5V ~ 5.5V | |
Standard Microsystems
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Standard Microsystems
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Renesas
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Yes/Yes | Yes/No | - | CML, CMOS, HCSL, LVDS, LVPECL | Surface Mount | 2 | -40°C ~ 85°C (TA) | CML, CMOS, HCSL, LVDS or Single-Ended | Yes | 2:12 | 40-VFQFPN (5x5) | Jitter Attenuator, Network Synchronizer | 1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
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 | 2:4 | 24-QFN (4x4) | Clock Generator | 1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
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Standard Microsystems
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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 | |
Renesas
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Yes/Yes | Yes/No | - | CML, CMOS, HCSL, LVDS, LVPECL | Surface Mount | 2 | -40°C ~ 85°C (TA) | CML, CMOS, HCSL, LVDS or Single-Ended | Yes | 2:12 | - | Jitter Attenuator, Network Synchronizer | 1.71V ~ 1.89V, 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
Analog Devices / Maxim Integrated
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No/No | Yes/Yes | 4.4GHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 1:2 | 32-LFCSP-WQ (5x5) | Fanout Distribution, Fractional N, Integer N, Clock/Frequency Synthesizer (RF) | 3V ~ 3.6V | |
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Standard Microsystems
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Standard Microsystems
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Renesas
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No/Yes | Yes/No | 1GHz | - | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, LVCMOS, LVDS, LVPECL | Yes | 1:4 | 28-VFQFPN (4x4) | Frequency Synthesizer | 1.71V ~ 1.89V, 1.71V ~ 3.465V |
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