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 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Harris Semiconductor
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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 | |
Analog Devices / Maxim Integrated
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No/No | Yes/No | - | 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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Cypress Semiconductor
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No/No | No/No | 82MHz | CMOS, TTL | Surface Mount | 1 | 0°C ~ 70°C (TA) | CMOS, TTL | Yes | 1:1 | 8-SOIC | Spread Spectrum Clock Generator | 2.97V ~ 3.63V, 4.5V ~ 5.5V | |
Analog Devices / Maxim Integrated
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No/No | Yes/No | - | 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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Skyworks Solutions
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Analog Devices / Maxim Integrated
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No/No | Yes/No | - | Clock | Surface Mount | 1 | -40°C ~ 125°C | CMOS, TTL | No | 1:2 | 8-uMAX/uSOP | Clock Generator | 2.7V ~ 5.5V | |
On Semiconductor
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Cypress Semiconductor
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Cypress Semiconductor
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No/No | No/No | 133.33MHz | Clock | Surface Mount | 1 | 0°C ~ 70°C (TA) | Clock | Yes with Bypass | 1:9 | 8-TSSOP | Zero Delay Buffer | 3V ~ 3.6V | |
Cypress Semiconductor
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No/No | Yes/No | - | Clock, Crystal | Surface Mount | 1 | 0°C ~ 70°C (TA) | Clock | Yes | 1:1 | 8-SOIC | Spread Spectrum Clock Generator | 3.135V ~ 3.465V | |
Cypress Semiconductor
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Cypress Semiconductor
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Cypress Semiconductor
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No/No | No/No | 82MHz | CMOS, TTL | Surface Mount | 1 | 0°C ~ 70°C (TA) | CMOS, TTL | Yes | 1:1 | 8-SOIC | Spread Spectrum Clock Generator | 2.97V ~ 3.63V, 4.5V ~ 5.5V | |
Cypress Semiconductor
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Texas Instruments
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Renesas
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Cypress Semiconductor
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On Semiconductor
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Yes/Yes | No/No | 750MHz | Clock | Surface Mount | 1 | -40°C ~ 85°C (TC) | Clock | No | 1:9 | 28-PLCC (11.51x11.51) | Clock Driver | 4.2V ~ 5.7V | |
Harris Semiconductor
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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 | |
Harris Semiconductor
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No/No | Yes/No | 25MHz | TTL, Crystal | Surface Mount | 1 | 0°C ~ 70°C (TA) | CMOS, TTL | No | 1:3 | 28-PLCC (11.51x11.51) | Clock Generator | 4.5V ~ 5.5V | |
Texas Instruments
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Yes/No | Yes/Yes | 3.23GHz | CMOS | Surface Mount | 1 | -40°C ~ 85°C (TA) | CMOS | Yes | 2:3 | 36-WQFN (6x6) | Frequency Synthesizer (RF) | 3.15V ~ 3.45V | |
Analog Devices / Maxim Integrated
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Yes/No | Yes/Yes | 6GHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 2:1 | 20-LFCSP (4x4) | Fractional N Synthesizer (RF) | 2.7V ~ 3.3V | |
Infineon Technologies
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No/Yes | Yes/No | 166MHz, 375MHz | LVTTL, Crystal | Surface Mount | 1 | -40°C ~ 85°C | CMOS, PECL | Yes with Bypass | 1:5 | 16-TSSOP | Clock Generator, Fanout Distribution | 3.135V ~ 3.465V | |
Analog Devices / Maxim Integrated
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Yes/Yes | No/No | 155.52MHz | CMOS, ECL, PECL, TTL | Surface Mount | 1 | -40°C ~ 85°C | ECL, PECL | Yes | 2:1 | 16-SOIC | Clock/Frequency Synthesizer | 4.5V ~ 5.5V | |
Analog Devices / Maxim Integrated
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Yes/No | Yes/No | - | CMOS, TTL, Crystal | Surface Mount | 1 | -55°C ~ 125°C | CMOS | Yes | 2:1 | 16-TSSOP | Clock/Frequency Synthesizer (RF), Phase Detector | 2.7V ~ 3.3V | |
Texas Instruments
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Yes/Yes | No/No | - | Clock | Surface Mount | 1 | -55°C ~ 125°C | Clock | No | 3:4 | 16-SOP | Clock Driver | 4.2V ~ 5.7V | |
Texas Instruments
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Yes/Yes | No/No | - | Clock | Surface Mount | 1 | -55°C ~ 125°C | Clock | No | 3:4 | 16-CFP | Clock Driver | 4.2V ~ 5.7V | |
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Infineon Technologies
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Infineon Technologies
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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 | |
Analog Devices / Maxim Integrated
|
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Yes/Yes | Yes/No | 2.95GHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | CMOS, LVDS, LVPECL | Yes | 1:14 | 64-LFCSP-VQ (9x9) | Clock Generator, Fanout Distribution | 3.135V ~ 3.465V | |
Analog Devices / Maxim Integrated
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No/Yes | Yes/No | 18GHz | Clock | Surface Mount | 1 | -40°C ~ 105°C | Clock | No | 1:1 | 16-LFCSP-WQ (3x3) | Prescaler | 3V ~ 3.6V | |
Analog Devices / Maxim Integrated
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Yes/Yes | Yes/No | 3.6GHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | CMOS, LVPECL | Yes with Bypass | 2:9 | 48-LFCSP (7x7) | Clock Generator | 3.135V ~ 3.465V | |
Analog Devices / Maxim Integrated
|
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Yes/No | Yes/Yes | - | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 2:1 | 32-LFCSP-WQ (5x5) | Frequency Synthesizer | 2.7V ~ 3.3V | |
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 | |
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Renesas
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Analog Devices / Maxim Integrated
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Yes/Yes | Yes/No | 2.95GHz | 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 | |
Skyworks Solutions
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Yes/Yes | Yes/Yes | 243MHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | CML, LVCMOS, LVDS, LVPECL | Yes | 5:5 | 100-TQFP (14x14) | - | 1.71V ~ 3.63V | |
Analog Devices / Maxim Integrated
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Yes/Yes | Yes/Yes | 2.415GHz | Clock | Surface Mount | 2 | -40°C ~ 85°C (TA) | Clock, CML, HCSL | Yes | 2:6 | 48-LFCSP (7x7) | Clock Synchronizer | 1.71V ~ 1.89V, 1.71V ~ 3.465V | |
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Infineon Technologies
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Rochester Electronics
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Zarlink Semiconductor Inc
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Rochester Electronics
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Rochester Electronics
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Zarlink Semiconductor Inc
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Infineon Technologies
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Skyworks Solutions
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No/No | Yes/No | 133MHz | Clock, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | Clock, CMOS, Crystal | Yes | 1:2 | 6-TDFN (1.2x1.4) | Clock Generator | 1.71V ~ 1.89V | |
Microchip Technology
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No/No | No/No | 134MHz | Clock | Surface Mount | 1 | 0°C ~ 70°C | Clock | Yes with Bypass | 1:9 | 16-TSSOP | - | 3V ~ 3.6V |
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