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 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Renesas
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No/No | Yes/No | 110MHz | LVTTL | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS | Yes with Bypass | 1:1 | 16-TSSOP | Clock/Frequency Synthesizer, Frequency Generator | 3V ~ 3.6V | |
Renesas
|
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Yes/Yes | Yes/No | 1GHz | HCSL, LVDS, LVHSTL, LVPECL, SSTL | Surface Mount | 1 | -40°C ~ 85°C | LVPECL | No | 2:4 | 20-TSSOP | Clock Generator | 3V ~ 3.6V | |
Texas Instruments
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No/No | Yes/No | 2.24GHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 2:2 | 36-WQFN (6x6) | Frequency Synthesizer (RF) | 3.15V ~ 3.45V | |
Texas Instruments
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Yes/Yes | Yes/No | 1.08GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | 2VPECL, LVPECL | Yes | 2:5 | 48-WQFN (7x7) | - | 3.15V ~ 3.45V | |
Texas Instruments
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Yes/Yes | Yes/No | 1.08GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | 2VPECL, LVPECL | Yes | 2:5 | 48-WQFN (7x7) | - | 3.15V ~ 3.45V | |
Cypress Semiconductor
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Renesas
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Yes/Yes | Yes/Yes | 700MHz | HCSL, LVDS, LVHSTL, LVPECL, SSTL | Surface Mount | 1 | 0°C ~ 70°C | LVDS | Yes with Bypass | 2:5 | 32-TQFP (7x7) | Clock Generator | 3.135V ~ 3.465V | |
Renesas
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Yes/Yes | Yes/Yes | 700MHz | HCSL, LVDS, LVHSTL, LVPECL, SSTL | Surface Mount | 1 | 0°C ~ 70°C | LVDS | Yes with Bypass | 1:1 | 20-SOIC | Clock Generator | 3.135V ~ 3.465V | |
Texas Instruments
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Yes/Yes | Yes/Yes | 1.75GHz | 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 | |
Linear Technology
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Renesas
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Yes/Yes | Yes/No | 750MHz | CML, LVDS, LVPECL, SSTL | Surface Mount | 1 | -40°C ~ 85°C | LVPECL | No | 2:15 | 52-TQFP (10x10) | Clock Generator | 3V ~ 3.8V | |
Renesas
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No/No | Yes/Yes | 160MHz | LVCMOS, LVTTL | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS, LVTTL | Yes with Bypass | 2:8 | 28-QSOP | Clock Generator | 3V ~ 3.6V | |
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Cypress Semiconductor
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Skyworks Solutions
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Renesas
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No/No | Yes/Yes | 80MHz | LVCMOS, LVTTL | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS, LVTTL | Yes with Bypass | 1:6 | 20-QSOP | - | 3V ~ 3.6V | |
Renesas
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Yes/No | Yes/Yes | 250MHz | HCSL, LVCMOS, LVDS, LVHSTL, LVPECL, LVTTL, SSTL | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS, LVTTL | Yes with Bypass | 2:8 | 32-TQFP (7x7) | Clock Generator | 2.375V ~ 3.465V | |
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Rochester Electronics
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Texas Instruments
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Yes/Yes | No/No | - | Clock | Surface Mount | 1 | -55°C ~ 125°C (TC) | Clock | No | 1:4 | 16-CFP | Clock Driver | 4.2V ~ 5.7V | |
Analog Devices / Maxim Integrated
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Yes/Yes | Yes/No | 1.3GHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | Clock | No | 1:1 | 32-QFN (5x5) | - | 4.75V ~ 5.25V | |
Analog Devices / Maxim Integrated
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Yes/Yes | Yes/Yes | 32GHz | CMOS, ECL | Surface Mount | 1 | -40°C ~ 105°C | Clock | Yes | 1:5 | 48-LGA (7x7) | Integer N Synthesizer (RF) | 3.15V ~ 3.45V | |
Renesas
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No/No | No/Yes | 160MHz | Clock, Crystal | Surface Mount | 1 | 0°C ~ 70°C | CMOS | Yes | 1:1 | 8-SOIC | Clock Generator | 3V ~ 5.25V | |
On Semiconductor
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No/Yes | No/No | 2GHz | NECL, PECL | Surface Mount | 1 | -40°C ~ 85°C | ECL | No | 1:2 | 8-SOIC | Phase Frequency Detector | 3V ~ 3.6V | |
Texas Instruments
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No/No | No/No | 38MHz | CMOS | Surface Mount | 1 | -55°C ~ 125°C | CMOS | Yes | 1:4 | 16-SOIC | Phase Lock Loop (PLL) | 2V ~ 6V | |
Texas Instruments
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No/No | No/No | 38MHz | CMOS | Surface Mount | 1 | -55°C ~ 125°C | CMOS | Yes | 1:4 | 16-SOIC | Phase Lock Loop (PLL) | 4.5V ~ 5.5V | |
Renesas
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No/No | No/No | 133MHz | LVTTL | Surface Mount | 1 | 0°C ~ 70°C | CMOS, LVTTL | Yes with Bypass | 1:5 | 8-SOIC | Zero Delay Buffer | 3V ~ 3.6V | |
Texas Instruments
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No/No | No/No | 38MHz | CMOS, TTL | Through Hole | 1 | -40°C ~ 125°C | CMOS, TTL | Yes | 1:3 | 16-PDIP | Phase Lock Loop (PLL) | 3V ~ 5.5V | |
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Analog Devices / Maxim Integrated
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No/No | Yes/No | 1.023kHz, 4Hz | Clock | Surface Mount | 1 | -40°C ~ 125°C | CMOS, TTL | No | 1:2 | 8-uMAX/uSOP | Clock Generator | 2.7V ~ 5.5V | |
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Analog Devices / Maxim Integrated
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No/No | Yes/No | 10MHz | Clock | Surface Mount | 1 | -20°C ~ 85°C | Clock | No | 1:1 | 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 | 32.75kHz | Clock | Surface Mount | 1 | -40°C ~ 125°C | CMOS, TTL | No | 1:2 | 8-uMAX/uSOP | Clock Generator | 2.7V ~ 5.5V | |
Cypress Semiconductor
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Analog Devices / Maxim Integrated
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No/No | Yes/No | 4MHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | CMOS, TTL | No | 1:1 | 8-uMAX/uSOP | Clock Generator | 3V ~ 5.5V | |
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Analog Devices / Maxim Integrated
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No/No | Yes/No | 66.6MHz | Clock | Surface Mount | 1 | -20°C ~ 85°C | Clock | No | 1:1 | 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 | - | Clock | Surface Mount | 1 | -40°C ~ 85°C | Clock | No | 1:1 | 8-uMAX/uSOP | Spread Spectrum Clock Generator | 2.7V ~ 3.6V | |
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Analog Devices / Maxim Integrated
|
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No/No | Yes/No | 250kHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | CMOS, TTL | No | 1:1 | 8-uMAX/uSOP | Clock Generator | 3V ~ 5.5V | |
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Analog Devices / Maxim Integrated
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No/No | Yes/No | 8MHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | CMOS, TTL | No | 1:1 | 8-uMAX/uSOP | Clock Generator | 3V ~ 5.5V | |
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) | 2V ~ 6V | |
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Analog Devices / Maxim Integrated
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No/No | Yes/No | 66.6MHz | 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 | 66MHz | Clock | Surface Mount | 1 | 0°C ~ 70°C | Clock | No | 1:1 | 8-uMAX/uSOP | Spread Spectrum Clock Generator | 4.75V ~ 5.25V | |
Cypress Semiconductor
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Analog Devices / Maxim Integrated
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Yes/Yes | Yes/No | 2.4GHz | Differential or Single-Ended | Surface Mount | 2 | -40°C ~ 85°C | CML, HCSL, LVDS or Single-Ended | Yes | 4:10 | 48-LFCSP (7x7) | Clock Synchronizer | 1.71V ~ 3.465V | |
Analog Devices / Maxim Integrated
|
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Yes/Yes | Yes/No | 2.65GHz | CMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | CMOS, LVDS | Yes | 2:12, 2:24 | 64-LFCSP-VQ (9x9) | Clock Generator, Fanout Distribution | 3.135V ~ 3.465V | |
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Harris Semiconductor
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No/No | Yes/No | 1MHz | Clock, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | Clock, Crystal | No | 2:1 | 18-CLCC | Bit Rate Generator | 4.5V ~ 5.5V | |
Analog Devices / Maxim Integrated
|
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Yes/Yes | Yes/No | 2.25GHz | CMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | CMOS, LVPECL | Yes | 2:12, 2:24 | 64-LFCSP-VQ (9x9) | Clock Generator, Fanout Distribution | 3.135V ~ 3.465V | |
Texas Instruments
|
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No/No | No/No | 38MHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 125°C | CMOS, TTL | Yes | 1:3 | 16-SOIC | Phase Lock Loop (PLL) | 3V ~ 5.5V | |
Texas Instruments
|
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No/No | No/No | 38MHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 125°C | CMOS, TTL | Yes | 1:3 | 16-TSSOP | Phase Lock Loop (PLL) | 3V ~ 5.5V | |
Texas Instruments
|
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No/No | No/No | 38MHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 125°C | CMOS, TTL | Yes | 1:3 | 16-SO | Phase Lock Loop (PLL) | 3V ~ 5.5V | |
Renesas
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No/No | No/No | 133MHz | LVTTL | Surface Mount | 1 | 0°C ~ 70°C | LVTTL | Yes with Bypass | 1:9 | 16-TSSOP | Zero Delay Buffer | 3V ~ 3.6V | |
Microchip Technology
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No/No | No/No | 220MHz | Clock | Surface Mount | 1 | 0°C ~ 70°C | Clock | Yes with Bypass | 1:9 | 16-SOP | - | 2.25V ~ 3.63V | |
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Analog Devices / Maxim Integrated
|
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No/No | Yes/No | 262kHz | Clock | Surface Mount | 1 | -40°C ~ 125°C | CMOS, TTL | No | 1:2 | 8-uMAX/uSOP | Clock Generator | 2.7V ~ 5.5V | |
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Analog Devices / Maxim Integrated
|
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No/No | Yes/No | 2.048MHz | Clock | Surface Mount | 1 | -20°C ~ 85°C | Clock | No | 1:1 | 8-uMAX/uSOP | Clock Generator | 2.7V ~ 3.6V |
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