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 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Microchip Technology
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Yes/Yes | Yes/No | 1.045GHz | CMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | CMOS, HCSL, HSTL, LVDS, LVPECL | Yes with Bypass | 4:10 | 56-QFN (8x8) | Clock Multiplier, Frequency Synthesizer | 1.71V ~ 3.465V | |
Skyworks Solutions
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Yes/Yes | Yes/No | 333.33MHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C | HCSL, LVCMOS, LVDS, LVPECL | Yes | 3:8 | 40-QFN (6x6) | Clock Generator | 1.71V ~ 3.63V | |
Renesas
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Yes/Yes | Yes/No | 1GHz | HCSL, LVCMOS, LVDS, LVHSTL, LVPECL, Crystal | Surface Mount | 1 | -40°C ~ 85°C | HSCL, LVCMOS, LVDS, LVPECL | Yes with Bypass | 3:8 | 56-VFQFPN (8x8) | Jitter Attenuator | 2.375V ~ 3.465V | |
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Renesas
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Analog Devices / Maxim Integrated
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Yes/No | Yes/No | 325MHz | CMOS, TTL, Crystal | Surface Mount | 1 | -55°C ~ 125°C | CMOS | Yes | 2:1 | 16-TSSOP | Frequency Synthesizer | 2.7V ~ 3.3V | |
Standard Microsystems
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Intersil
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No/No | No/No | - | CMOS, TTL | Through Hole | 1 | -40°C ~ 85°C (TA) | Clock | No | 1:2 | 18-CERDIP | Clock Generator | 4.5V ~ 5.5V | |
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Microchip Technology
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Cypress Semiconductor
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No/No | Yes/Yes | 110MHz | LVTTL | Surface Mount | 1 | 0°C ~ 70°C | LVTTL | Yes | 1:8 | 32-PLCC (11.43x13.97) | Clock Buffer, Zero Delay Buffer | 2.97V ~ 3.63V | |
Harris Semiconductor
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No/No | Yes/No | 25MHz | TTL | Surface Mount | 1 | -55°C ~ 125°C | TTL | No | 1:3 | 20-CLCC (8.89x8.89) | Clock Generator, Clock Synchronizer | 4.5V ~ 5.5V | |
Harris Semiconductor
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No/No | Yes/No | 2.4MHz | CMOS | Surface Mount | 1 | -55°C ~ 125°C (TA) | CMOS | Yes | 1:1 | 16-CFP | Phase Lock Loop (PLL) | 3V ~ 18V | |
Cypress Semiconductor
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Yes/No | Yes/Yes | 200MHz | LVPECL, LVTTL | Surface Mount | 1 | 0°C ~ 70°C (TA) | LVTTL | Yes | 2:10 | 52-LQFP (10x10) | Clock Buffer, Fanout Distribution | 2.97V ~ 3.63V | |
Microchip Technology
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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 | 2.7GHz | Clock | Surface Mount | 1 | -40°C ~ 105°C | CML, LVDS | Yes | 1:5 | 40-QFN (5x7) | - | 3.15V ~ 3.45V | |
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Infineon Technologies
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No/No | No/No | 133.33MHz | LVCMOS, LVTTL | Surface Mount | 1 | -40°C ~ 85°C | LVCMOS | Yes with Bypass | 1:9 | 16-SOIC | Fanout Buffer (Distribution), Zero Delay Buffer | 3V ~ 3.6V | |
Harris Semiconductor
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Analog Devices / Maxim Integrated
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Intel
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Standard Microsystems
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Renesas
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No/Yes | Yes/No | 1GHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL | Yes | 1:12 | 72-VFQFPN (10x10) | Clock Generator | 1.71V ~ 3.465V | |
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Renesas
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Renesas
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Diodes Incorporated
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Diodes Incorporated
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Renesas
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Yes/Yes | Yes/No | 1GHz | Clock | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL | Yes | 2:4 | 48-VFQFPN (7x7) | Frequency Synthesizer | 1.71V ~ 3.465V | |
Harris Semiconductor
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No/No | Yes/No | 1MHz | Clock, Crystal | Through Hole | 1 | -55°C ~ 125°C (TA) | Clock, Crystal | No | 2:1 | 16-CERDIP | Bit Rate Generator | 4.5V ~ 5.5V | |
Intersil
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No/No | Yes/No | 2.4576MHz | Crystal | Through Hole | 1 | -55°C ~ 125°C (TA) | Crystal | No | 1:1 | 16-CERDIP | Clock Generator | 4.5V ~ 5.5V | |
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Renesas
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Cypress Semiconductor
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No/No | Yes/Yes | 200MHz | LVPECL, LVTTL | - | 1 | - | LVTTL | Yes | 4:18 | - | Clock Buffer, Fanout Distribution | 2.97V ~ 3.63V | |
Intersil
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No/No | Yes/No | 25MHz | TTL | Surface Mount | 1 | -55°C ~ 125°C (TA) | TTL | No | 1:2 | 20-CLCC (8.89x8.89) | Clock Generator | 4.5V ~ 5.5V | |
Skyworks Solutions
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Yes/Yes | Yes/Yes | 243MHz | LVCMOS, LVDS, LVPECL, Crystal | Surface Mount | 1 | -40°C ~ 85°C | CML, LVCMOS, LVDS, LVPECL | Yes | 3:2 | 36-QFN (6x6) | Clock Multiplier, Jitter Attenuator | 1.71V ~ 3.63V | |
Renesas
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Yes/Yes | Yes/Yes | 1GHz | Clock | Surface Mount | 2 | -40°C ~ 85°C (TA) | CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL | Yes | 2:12 | 72-VFQFPN (10x10) | Frequency Translator | 1.71V ~ 3.465V | |
Rochester Electronics
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Renesas
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Yes/Yes | Yes/No | 1GHz | Clock | Surface Mount | 4 | -40°C ~ 85°C (TJ) | CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL | Yes | 4:12 | 72-VFQFPN (10x10) | Frequency Translator | 1.71V ~ 3.465V | |
Renesas
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Yes/Yes | Yes/No | 1GHz | Clock | Surface Mount | 4 | -40°C ~ 85°C (TA) | CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL | Yes | 7:8 | 72-VFQFPN (10x10) | Frequency Translator | 1.71V ~ 3.465V | |
Analog Devices / Maxim Integrated
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Yes/Yes | Yes/No | 4.5GHz | Differential | Surface Mount | 1 | -40°C ~ 125°C | CML | Yes | 1:11 | 52-QFN (7x8) | Clock Generator, Fanout Buffer (Distribution) | 3.15V ~ 3.45V | |
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Intel
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Renesas
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Yes/Yes | Yes/No | 1GHz | Clock | Surface Mount | 2 | -40°C ~ 85°C (TA) | CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL | Yes | 2:4 | 48-VFQFPN (7x7) | Clock Synchronizer | 1.71V ~ 3.465V | |
Skyworks Solutions
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Yes/Yes | Yes/No | 350MHz | LVCMOS, LVDS, LVPECL | Surface Mount | 1 | -40°C ~ 85°C | CML, HCSL, LVCMOS, LVDS, LVPECL | Yes | 5:7 | 64-QFN (9x9) | - | 1.71V ~ 3.47V | |
Skyworks Solutions
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Yes/Yes | Yes/No | 350MHz | LVCMOS, Crystal | Surface Mount | 1 | -40°C ~ 85°C (TA) | CML, HCSL, LVCMOS, LVDS, LVPECL | Yes | 4:12 | 64-LGA (9x9) | Clock Multiplier, Jitter Attenuator | 1.71V ~ 1.89V, 3.14V ~ 3.47V | |
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Diodes Incorporated
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Diodes Incorporated
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Skyworks Solutions
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Yes/Yes | No/Yes | 346MHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | CML, LVCMOS, LVDS, LVPECL | Yes | 4:5 | 100-TQFP (14x14) | Clock Multiplier, Jitter Attenuator | 1.71V ~ 3.63V | |
Analog Devices / Maxim Integrated
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Yes/Yes | Yes/No | 2.7GHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | CML | Yes | 2:4 | 48-LFCSP (7x7) | - | 2.375V ~ 2.625V | |
Skyworks Solutions
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Yes/Yes | Yes/Yes | 808MHz | Clock | Surface Mount | 1 | -40°C ~ 85°C | CML, LVCMOS, LVDS, LVPECL | Yes | 8:8 | 80-PBGA (10x10) | Clock Multiplier, Jitter Attenuator | 1.71V ~ 2.75V | |
Advanced Micro Devices
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No/No | Yes/No | - | - | Through Hole | 1 | -55°C ~ 125°C | Clock | No | 1:4 | 24-CDIP | Clock Generator | 4.5V ~ 5.5V | |
Rochester Electronics
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Rochester Electronics
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Rochester Electronics
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