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 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments
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No/Yes | Yes/No | 4.8GHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 1:4 | 32-VQFN (5x5) | Integer-N/Fractional-N, VCO | 3V ~ 3.6V | |
Texas Instruments
|
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Yes/Yes | Yes/No | 2.6GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS, LVDS, LVPECL | Yes | 3:6 | 64-WQFN (9x9) | - | 3.15V ~ 3.45V | |
Texas Instruments
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No/No | No/No | 125MHz | LVTTL | Surface Mount | 1 | 0°C ~ 85°C | LVTTL | Yes with Bypass | 1:9 | 24-TSSOP | PLL Clock Driver | 3V ~ 3.6V | |
Renesas
|
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No/No | Yes/Yes | 156MHz | Clock, Crystal | Surface Mount | 1 | -40°C ~ 85°C | CMOS | Yes | 1:5 | 20-QSOP | Clock/Frequency Synthesizer | 2.97V ~ 3.63V | |
On Semiconductor
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- | - | - | - | Surface Mount | - | - | - | - | - | 8-TSSOP | - | - | |
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 | |
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 | |
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 | |
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Cypress Semiconductor
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No/No | Yes/No | 133.3MHz | LVCMOS, LVTTL | Surface Mount | 1 | 0°C ~ 70°C (TA) | LVCMOS | Yes with Bypass | 1:8 | 16-TSSOP | Zero Delay Buffer | 3V ~ 3.6V | |
Renesas
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No/Yes | Yes/Yes | 226.66MHz | Crystal | Surface Mount | 1 | 0°C ~ 70°C | LVDS | Yes | 1:1 | 8-TSSOP | Clock Generator, Multiplexer | 2.375V ~ 3.465V | |
Texas Instruments
|
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No/Yes | Yes/No | 1.2GHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | LVDS, LVPECL | Yes | 1:1 | Wafersale | Clock Generator | 3V ~ 3.6V | |
Texas Instruments
|
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Yes/Yes | Yes/No | 1.536GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS, LVDS, LVPECL | Yes | 2:14 | 64-WQFN (9x9) | Jitter Cleaner | 3.15V ~ 3.45V | |
Texas Instruments
|
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Yes/Yes | Yes/No | 1.536GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS, LVDS, LVPECL | Yes | 2:14 | 64-WQFN (9x9) | Jitter Cleaner | 3.15V ~ 3.45V | |
Texas Instruments
|
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Yes/Yes | Yes/No | 1.536GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS, LVDS, LVPECL | Yes | 2:14 | 64-WQFN (9x9) | Jitter Cleaner | 3.15V ~ 3.45V | |
Renesas
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No/Yes | Yes/No | 700MHz | Crystal | Surface Mount | 1 | 0°C ~ 70°C | LVPECL | Yes with Bypass | 1:2 | 32-TQFP (7x7) | Frequency Synthesizer | 3.135V ~ 3.465V | |
|
Texas Instruments
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Yes/No | No/No | 36.87MHz | TTL | Surface Mount | 1 | -25°C ~ 85°C | CMOS | Yes | 1:6 | 20-SSOP | PLL Multi-Clock Generator | 3.3V, 5V | |
Texas Instruments
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No/Yes | Yes/No | 125MHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | LVPECL | Yes | 1:1 | 24-VQFN (4x4) | Clock Generator | 3V ~ 3.6V | |
Texas Instruments
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No/Yes | Yes/No | 156.25MHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | LVPECL | Yes | 1:1 | 24-VQFN (4x4) | Clock Generator | 3V ~ 3.6V | |
|
Texas Instruments
|
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Yes/No | No/No | 36.87MHz | TTL | Surface Mount | 1 | -25°C ~ 85°C | CMOS | Yes | 1:6 | 20-SSOP | PLL Multi-Clock Generator | 3.3V, 5V | |
Texas Instruments
|
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Yes/Yes | Yes/Yes | 200MHz, 400MHz, 1.25GHz | LVCMOS | Surface Mount | 1 | -40°C ~ 85°C | CML, HCSL, LVCMOS, LVDS, LVPECL | Yes with Bypass | 3:8 | 48-VQFN (7x7) | Clock Synchronizer and Jitter Cleaner | 3.135V ~ 3.465V | |
Hittite Microwave
|
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No/Yes | Yes/No | 1.1GHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 1:1 | 40-SMT (6x6) | - | 3V ~ 5.2V | |
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Analog Devices / Maxim Integrated
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- | - | - | - | - | - | - | - | - | - | - | - | - | |
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Diodes Incorporated
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- | - | - | - | - | - | - | - | - | - | - | - | - | |
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 | |
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 | |
Texas Instruments
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No/Yes | Yes/No | 1.6GHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 1:1 | 40-VQFN (6x6) | Integer-N Synthesizer/VCO | 4.5V ~ 5.25V | |
Texas Instruments
|
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Yes/Yes | Yes/No | 1.57GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C (TA) | LVCMOS, LVDS, LVPECL | Yes | 1:9 | 48-WQFN (7x7) | Clock Conditioner | 3.15V ~ 3.45V | |
Texas Instruments
|
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Yes/Yes | Yes/No | 1.57GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | LVDS, LVPECL | No | 1:8 | 48-WQFN (7x7) | Clock Conditioner | 3.15V ~ 3.45V | |
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 | |
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 | |
Dallas Semiconductor
|
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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 | LVCMOS, LVDS, 2VPECL, LVPECL | Yes | 2:6 | 48-WQFN (7x7) | Clock Conditioner | 3.15V ~ 3.45V | |
Hittite Microwave
|
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No/Yes | Yes/No | 1.415GHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 1:1 | 40-SMT (6x6) | - | 3V ~ 5.2V | |
Hittite Microwave
|
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No/No | Yes/No | 2.01GHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 1:1 | 40-SMT (6x6) | - | 3V ~ 5.2V | |
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Analog Devices / Maxim Integrated
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- | - | - | - | - | - | - | - | - | - | - | - | - | |
Texas Instruments
|
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Yes/Yes | Yes/No | 1.536GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS, LVDS, LVPECL | Yes | 2:14 | 64-WQFN (9x9) | Jitter Cleaner | 3.15V ~ 3.45V | |
Texas Instruments
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- | - | - | - | - | - | - | - | - | - | - | - | - | |
Renesas
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No/No | Yes/Yes | 160MHz | LVCMOS | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS | Yes | 4:8 | 32-TQFP (7x7) | PLL Clock Generator | 2.375V ~ 3.465V | |
Texas Instruments
|
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Yes/Yes | Yes/No | 1.536GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS, LVDS, LVPECL | Yes | 2:14 | 64-WQFN (9x9) | Jitter Cleaner | 3.15V ~ 3.45V | |
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Texas Instruments
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- | - | - | - | - | - | - | - | - | - | - | - | - | |
Texas Instruments
|
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Yes/Yes | Yes/Yes | 1.57GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | 2VPECL, LVPECL | Yes | 2:5 | 48-WQFN (7x7) | Clock Conditioner | 3.15V ~ 3.45V | |
Texas Instruments
|
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Yes/Yes | Yes/Yes | 1.57GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS, 2VPECL, LVPECL | Yes | 2:7 | 48-WQFN (7x7) | Clock Conditioner | 3.15V ~ 3.45V | |
Texas Instruments
|
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Yes/Yes | Yes/Yes | 1.296GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | 2VPECL, LVPECL | Yes | 2:5 | 48-WQFN (7x7) | Clock Conditioner | 3.15V ~ 3.45V | |
Texas Instruments
|
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Yes/Yes | Yes/Yes | 1.57GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS, LVDS, 2VPECL, LVPECL | Yes | 2:6 | 48-WQFN (7x7) | Clock Conditioner | 3.15V ~ 3.45V | |
Hittite Microwave
|
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No/Yes | Yes/Yes | 4.6GHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 1:1 | 40-SMT (6x6) | - | 3V ~ 5.2V | |
Harris Semiconductor
|
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- | - | - | - | - | - | - | - | - | - | - | - | - | |
Renesas
|
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No/No | Yes/No | 27MHz | LVCMOS | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS | Yes | 2:1 | 20-SOIC | Clock Jitter Attenuator | 3.15V ~ 3.45V | |
Renesas
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No/No | Yes/No | 160MHz | LVCMOS | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS | Yes | 1:3 | 56-TSSOP | Clock Synchronizer | 3.15V ~ 3.45V | |
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 | |
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 | 2:7 | 48-WQFN (7x7) | Clock Conditioner | 3.15V ~ 3.45V |
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