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 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Skyworks Solutions
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Yes/Yes | Yes/No | 1.028GHz | LVCMOS | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, LVDS, LVPECL, LVCMOS | Yes | 4:2 | 44-QFN (7x7) | Clock Multiplier, Jitter Attenuator | 1.71V ~ 1.89V, 3.14V ~ 3.47V | |
Skyworks Solutions
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Yes/Yes | Yes/No | 350MHz | LVCMOS, LVDS, LVPECL, Crystal | Surface Mount | 1 | -40°C ~ 85°C | CML, HCSL, LVCMOS, LVDS, LVPECL | Yes | 5:10 | 64-QFN (9x9) | - | 1.71V ~ 3.47V | |
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Standard Microsystems
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Microchip Technology
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No/No | Yes/No | 27MHz, 60MHz | Clock | Surface Mount | 1 | 0°C ~ 70°C | Clock | Yes with Bypass | 1:2 | SOT-23-6 | Frequency Synthesizer | 2.25V ~ 3.63V | |
ROHM Semiconductor
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No/No | No/No | 74.25MHz | Crystal | Surface Mount | 1 | -10°C ~ 75°C | Clock | Yes with Bypass | 1:2 | 16-SSOP-B | - | 3.135V ~ 3.465V | |
Diodes Incorporated
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No/No | No/No | 133MHz | TTL | Surface Mount | 1 | 0°C ~ 70°C | TTL | Yes with Bypass | 1:9 | 16-SOIC | Zero Delay Buffer | 3V ~ 3.6V | |
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Microchip Technology
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No/No | No/No | 220MHz | Clock | Surface Mount | 1 | 0°C ~ 70°C | Clock | Yes with Bypass | 1:5 | 8-SOIC | - | 2.25V ~ 3.63V | |
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 | |
Renesas
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No/No | Yes/Yes | 32.768kHz | Crystal | Surface Mount | 3 | -40°C ~ 85°C | LVCMOS | Yes | 1:3 | 12-DFN (2.5x2.5) | Clock Generator | 1.71V ~ 1.89V | |
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Analog Devices / Maxim Integrated
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No/No | Yes/No | - | Clock | Surface Mount | 1 | -20°C ~ 85°C | Clock | No | 1:1 | 8-uMAX/uSOP | Clock Generator | 2.7V ~ 3.6V | |
Analog Devices / Maxim Integrated
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No/No | Yes/No | 133MHz | Clock | Surface Mount | 1 | 0°C ~ 70°C | Clock | No | 1:1 | 8-SOIC | Spread Spectrum Clock Generator | 4.75V ~ 5.25V | |
Renesas
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Yes/Yes | No/No | 125MHz | HCSL | Surface Mount | 1 | 0°C ~ 70°C | HCSL | Yes with Bypass | 1:6 | 40-VFQFPN (5x5) | - | 1.7V ~ 1.9V | |
Renesas
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Yes/Yes | No/No | 350MHz | HCSL, LVCMOS, LVDS, LVPECL, Crystal | Surface Mount | 1 | -40°C ~ 85°C | HCSL, LVCMOS, LVDS, LVPECL | No | 2:2 | 24-QFN (4x4) | - | 1.71V ~ 3.465V | |
Skyworks Solutions
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No/No | Yes/No | 1.5GHz | Crystal | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 1:2 | 28-QFN (5x5) | Frequency Synthesizer | 2.7V ~ 3.6V | |
Texas Instruments
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Yes/Yes | No/No | 250MHz | LVCMOS, Crystal | Surface Mount | 2 | -40°C ~ 85°C | LVCMOS, LVDS, HCSL | Yes with Bypass | 1:5 | 24-VQFN (4x4) | Clock Generator | 1.71V ~ 3.465V | |
Renesas
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No/No | Yes/Yes | 200MHz | Clock, Crystal | Surface Mount | 1 | -40°C ~ 85°C | CMOS | Yes with Bypass | 1:2 | 8-SOIC | Clock/Frequency Synthesizer, Fanout Distribution, Spread Spectrum Clock Generator | 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 | 48-VFQFPN (6x6) | Clock Generator | 1.71V ~ 3.465V | |
Diodes Incorporated
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Yes/Yes | No/No | 312.5MHz | LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C (TA) | CMOS, Crystal | Yes | 1:11 | 64-TQFN (9x9) | Clock Generator | 3.135V ~ 3.465V | |
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Skyworks Solutions
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On Semiconductor
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No/Yes | Yes/Yes | 200MHz | Clock, Crystal | Surface Mount | 1 | -40°C ~ 85°C | PECL | Yes | 1:1 | 16-SOIC | Clock/Frequency Synthesizer | 3V ~ 5.5V | |
Renesas
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No/Yes | Yes/No | 350MHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | HCSL, LVCMOS, LVDS, LVPECL | Yes | 1:2 | 20-QFN (3x3) | - | 1.71V ~ 3.465V | |
Renesas
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Yes/Yes | Yes/No | 350MHz | HCSL, LVCMOS, LVDS, LVPECL, Crystal | Surface Mount | 1 | -40°C ~ 85°C | HCSL, LVCMOS, LVDS, LVPECL | Yes | 2:4 | 40-VFQFPN (5x5) | Clock Generator | 1.8V, 2.5V, 3.3V | |
Analog Devices / Maxim Integrated
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Yes/Yes | Yes/No | 2.4GHz | CMOS, TTL | Surface Mount | 1 | -40°C ~ 85°C | Clock | Yes | 3:1 | 20-TSSOP | Clock/Frequency Synthesizer (RF/IF) | 2.7V ~ 3.3V | |
AMI Semiconductor Inc.
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No/Yes | Yes/No | 340MHz | Crystal | - | 1 | 0°C ~ 70°C (TA) | CMOS, PECL | Yes | 1:1 | - | Phase Lock Loop (PLL) | 3V ~ 3.6V | |
Renesas
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No/Yes | Yes/Yes | 500MHz | LVCMOS, LVTTL, Crystal | Surface Mount | 1 | -40°C ~ 85°C | HCSL, LVCMOS, LVDS, LVPECL, LVTTL | Yes with Bypass | 2:5 | 24-QFN (4x4) | Clock Generator, Multiplexer | 3.135V ~ 3.465V | |
Skyworks Solutions
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Yes/Yes | Yes/No | 200MHz | CMOS, Clock, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL | Yes with Bypass | 1:4 | 24-QFN (4x4) | Clock Generator | 1.71V ~ 3.63V | |
Skyworks Solutions
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Yes/Yes | Yes/No | 200MHz | CMOS, Clock, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL | Yes with Bypass | 1:4 | 24-QFN (4x4) | Clock Generator | 1.71V ~ 3.63V | |
Microchip Technology
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Yes/Yes | Yes/Yes | 1.035GHz | CML, CMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | CML, CMOS | Yes with Bypass | 4:3 | 32-QFN (5x5) | - | 1.71V ~ 3.465V | |
Skyworks Solutions
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Yes/Yes | Yes/No | 350MHz | CMOS, HSTL, SSTL, Clock, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL | Yes with Bypass | 1:4 | 24-QFN (4x4) | Clock Generator | 1.71V ~ 3.63V | |
Renesas
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No/Yes | Yes/No | 350MHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | HCSL, LVCMOS, LVDS, LVPECL | Yes | 1:11 | 48-VFQFPN (6x6) | - | 1.71V ~ 3.465V | |
Skyworks Solutions
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Yes/Yes | Yes/No | 200MHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | HCSL, LVCMOS, LVDS, LVPECL | Yes | 3:8 | 40-LGA (6x6) | Clock Generator | 1.71V ~ 3.63V | |
Microchip Technology
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Yes/Yes | Yes/No | 1.045GHz | CMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | CMOS, HCSL, HSTL, LVDS, LVPECL | Yes with Bypass | 6:10 | 56-QFN (8x8) | Clock Multiplier, Frequency Synthesizer | 1.71V ~ 3.465V | |
Standard Microsystems
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Skyworks Solutions
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Yes/Yes | Yes/No | 200MHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | HCSL, LVCMOS, LVDS, LVPECL | Yes | 3:12 | 48-LGA (6x6) | Clock Generator | 1.71V ~ 3.63V | |
On Semiconductor
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Yes/Yes | No/No | 250MHz | CML, LVDS, NECL, PECL | Surface Mount | 1 | -40°C ~ 85°C | ECL | No | 1:3 | 20-SOIC | Phase Frequency Detector | 3V ~ 5.5V | |
Renesas
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Yes/Yes | Yes/No | 2.949GHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 105°C (TA) | LVDS, LVPECL | Yes | 2:16 | 88-VFQFPN (10x10) | Clock Synthesizer, Jitter Attenuator | 3.135V ~ 3.465V | |
Standard Microsystems
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Skyworks Solutions
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Yes/Yes | Yes/No | 312.5MHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | HCSL, LVCMOS, LVDS, LVPECL | Yes | 3:12 | 48-LGA (6x6) | Clock Generator | 1.71V ~ 3.63V | |
Analog Devices / Maxim Integrated
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Yes/Yes | Yes/No | 7.5GHz | Differential | Surface Mount | 1 | -40°C ~ 125°C | CML | No | 1:11 | 52-QFN (7x8) | Fanout Buffer (Distribution) | 3.15V ~ 3.45V | |
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 | |
Skyworks Solutions
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Yes/Yes | Yes/No | 1.028GHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, LVCMOS, LVDS, LVPECL | Yes | 4:10 | 64-QFN (9x9) | Clock Multiplier, Jitter Attenuator | 1.71V ~ 3.47V | |
Skyworks Solutions
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Yes/Yes | Yes/No | 718.5MHz | Clock, Crystal, LVCMOS | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, LVCMOS, LVDS, LVPECL | Yes | 5:7 | 56-LGA (8x8) | Clock Synchronizer | 1.71V ~ 1.89V, 3.14V ~ 3.47V | |
NXP Semiconductors
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NXP Semiconductors
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NXP Semiconductors
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Cypress Semiconductor
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Standard Microsystems
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Harris Semiconductor
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No/No | No/No | 38MHz | CMOS | Through Hole | 1 | -55°C ~ 125°C | CMOS | Yes | 1:4 | 16-PDIP | Phase Lock Loop (PLL) | 2V ~ 6V | |
Cypress Semiconductor
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No/Yes | Yes/No | 100MHz | LVTTL | Surface Mount | 1 | 0°C ~ 70°C | Clock | Yes | 1:2 | 16-TSSOP | Clock/Frequency Synthesizer, Fanout Distribution, Spread Spectrum Clock Generator | 3.135V ~ 3.465V | |
Nexperia USA Inc.
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No/No | Yes/No | 3MHz | Clock | Surface Mount | 1 | -40°C ~ 125°C (TA) | Clock | Yes | 2:3 | 16-TSSOP | Phase Lock Loop (PLL) | 3V ~ 6V |
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