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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Yes/No | Yes/No | 2.5GHz, 1.2GHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | CMOS | Yes with Bypass | 3:1 | 24-CSP (4.5x3.5) | PLL Frequency Synthesizer | 2.7V ~ 5.5V | |
Texas Instruments
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Yes/No | Yes/No | 2GHz, 1.2GHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | CMOS | Yes with Bypass | 3:1 | 24-CSP (4.5x3.5) | PLL Frequency Synthesizer | 2.7V ~ 5.5V | |
Cypress Semiconductor
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No/No | Yes/No | 140MHz | LVCMOS, LVTTL | Surface Mount | 1 | 0°C ~ 70°C (TA) | LVCMOS | Yes with Bypass | 1:8 | 16-SOIC | Clock Buffer, Zero Delay Buffer | 3V ~ 3.6V | |
Texas Instruments
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Yes/No | Yes/Yes | 2.5GHz, 550MHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | CMOS | Yes with Bypass | 3:3 | 24-CSP (4.5x3.5) | PLL Frequency Synthesizer | 2.7V ~ 5.5V | |
Cypress Semiconductor
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Intersil
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No/No | No/No | 50MHz | Clock, Crystal | Surface Mount | - | -40°C ~ 85°C | LVTTL | Yes | 2:4 | 16-QFN (3x3) | Clock/Frequency Synthesizer, Clock Generator, Fanout Distribution | 3V ~ 3.6V | |
Intersil
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No/No | No/No | 30MHz | Clock, Crystal | Surface Mount | - | -40°C ~ 85°C | LVTTL | Yes | 2:4 | 16-QFN (3x3) | Clock/Frequency Synthesizer, Clock Generator, Fanout Distribution | 3V ~ 3.6V | |
Intersil
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No/No | No/No | 54MHz | Clock, Crystal | Surface Mount | - | -40°C ~ 85°C | LVTTL | Yes | 2:4 | 16-QFN (3x3) | Clock/Frequency Synthesizer, Clock Generator, Fanout Distribution | 3V ~ 3.6V | |
Cypress Semiconductor
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Cypress Semiconductor
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Texas Instruments
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Yes/No | Yes/No | 2GHz, 1.2GHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | CMOS | Yes with Bypass | 3:1 | 20-ULGA (3.5x3.5) | PLL Frequency Synthesizer | 2.7V ~ 5.5V | |
Texas Instruments
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Yes/No | Yes/No | 2.5GHz, 1.2GHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | CMOS | Yes with Bypass | 3:1 | 24-CSP (4.5x3.5) | PLL Frequency Synthesizer | 2.7V ~ 5.5V | |
Harris Semiconductor
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No/No | No/No | 400kHz | CMOS | Through Hole | 1 | -55°C ~ 125°C (TA) | CMOS | Yes | 4:4 | 16-CERDIP | Phase Lock Loop (PLL) | 4.5V ~ 5.5V | |
Texas Instruments
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Yes/No | No/No | - | Clock | Surface Mount | 1 | -40°C ~ 85°C (TA) | CMOS | Yes | 4:5 | 24-TSSOP | Clock/Frequency Synthesizer (RF/IF), Fractional N, Integer N | 2.7V ~ 5.5V | |
Cypress Semiconductor
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No/No | Yes/No | 14.318MHz | - | Surface Mount | 1 | 0°C ~ 70°C (TA) | Clock | Yes | 1:10 | 28-SSOP | Frequency Generator | 2.375V ~ 2.625V, 3.135V ~ 3.465V | |
Texas Instruments
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Yes/No | Yes/No | 2.5GHz, 600MHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | CMOS | Yes with Bypass | 3:1 | 24-CSP (4.5x3.5) | PLL Frequency Synthesizer | 2.7V ~ 5.5V | |
Cypress Semiconductor
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No/No | Yes/No | 133.3MHz | Clock | Surface Mount | 1 | -40°C ~ 85°C (TA) | Clock | Yes with Bypass | 2:4 | 16-SOIC | Zero Delay Buffer | 3V ~ 3.6V | |
Nexperia USA Inc.
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No/No | No/No | 19MHz | Clock | Surface Mount | 1 | -40°C ~ 125°C | Clock | Yes | 2:2 | 16-TSSOP | Phase Lock Loop (PLL) | 4.5V ~ 5.5V | |
Cypress Semiconductor
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Texas Instruments
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Yes/No | Yes/Yes | - | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C (TA) | CMOS | Yes with Bypass | 3:3 | 24-TLGA (4.5x3.5) | Frequency Synthesizer | 2.7V ~ 5.5V | |
Cypress Semiconductor
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Cypress Semiconductor
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Standard Microsystems
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On Semiconductor
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No/No | Yes/No | 30MHz | Crystal | Surface Mount | 1 | 0°C ~ 70°C | CMOS | Yes | 1:1 | 6-TSOP | Frequency Modulator, Spread Spectrum Clock Generator | 2.375V ~ 3.6V | |
Cypress Semiconductor
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No/No | Yes/No | - | CMOS, TTL, Crystal | Surface Mount | 1 | 0°C ~ 70°C (TA) | CMOS, TTL | Yes | 1:2 | 8-SOIC | Spread Spectrum Clock Generator | 3.135V ~ 3.465V, 4.5V ~ 5.5V | |
Analog Devices / Maxim Integrated
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No/No | Yes/No | - | Clock | Surface Mount | 1 | -40°C ~ 85°C | Clock | No | 2:1 | 8-uMAX/uSOP | Clock Generator | 2.7V ~ 3.6V | |
Cypress Semiconductor
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No/No | Yes/No | 133MHz | - | Surface Mount | 1 | 0°C ~ 70°C (TA) | - | No | 2:2 | 8-SOIC | Frequency Multiplier, Zero Delay Buffer | 3.135V ~ 3.465V, 4.5V ~ 5.5V | |
On Semiconductor
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No/No | Yes/No | 110MHz | Clock, Crystal | Surface Mount | 1 | -40°C ~ 85°C | CMOS, TTL | Yes | 1:1 | 8-SOIC | Clock Generator | 4.5V ~ 5.5V | |
Analog Devices / Maxim Integrated
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No/No | Yes/No | - | 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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Cypress Semiconductor
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Pericom Semiconductor Corporation
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Cypress Semiconductor
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No/No | Yes/No | 140MHz | LVCMOS, LVTTL | Surface Mount | 1 | 0°C ~ 70°C (TA) | LVCMOS | Yes with Bypass | 1:8 | 16-SOIC | Clock Buffer, Zero Delay Buffer | 3V ~ 3.6V | |
Cypress Semiconductor
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Cypress Semiconductor
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No/No | Yes/No | 74.25MHz | Crystal | Surface Mount | 1 | 0°C ~ 70°C (TA) | Clock | Yes | 1:4 | 16-TSSOP | Clock Generator | 3.135V ~ 3.465V | |
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Standard Microsystems
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Cypress Semiconductor
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No/No | Yes/No | 74.25MHz | Crystal | Surface Mount | 1 | 0°C ~ 70°C (TA) | Clock | Yes | 1:4 | 16-TSSOP | Clock Generator | 3.135V ~ 3.465V | |
Analog Devices / Maxim Integrated
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- | - | - | Clock | Surface Mount | 1 | - | Clock | No | - | - | Spread Spectrum Clock Generator | - | |
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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 | |
Cypress Semiconductor
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Texas Instruments
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Yes/No | Yes/No | 1.2GHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | CMOS | Yes with Bypass | 3:1 | 24-CSP (4.5x3.5) | PLL Frequency Synthesizer | 2.7V ~ 5.5V | |
Cypress Semiconductor
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Cypress Semiconductor
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Cypress Semiconductor
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Cypress Semiconductor
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No/No | No/No | 48MHz | Crystal | Surface Mount | 1 | 0°C ~ 70°C (TA) | Clock | Yes | 1:2 | 8-SOIC | Spread Spectrum Clock Generator | 2.97V ~ 3.63V | |
Cypress Semiconductor
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Cypress Semiconductor
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Cypress Semiconductor
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Cypress Semiconductor
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Cypress Semiconductor
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Cypress Semiconductor
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