LTC6951IUHF-1#TRPBF

Clock Generators, PLLs, Frequency Synthesizers Overview

The LTC6951IUHF-1#TRPBF is an ultralow jitter multioutput clock synthesizer with an integrated voltage-controlled oscillator (VCO). It features a high-performance, low-noise integer-N PLL architecture. The device provides five independent outputs: four low-noise CML signals and one LVDS signal. Each output includes individual dividers and programmable delays for precise phase alignment. The -1 suffix designates the variant capable of output frequencies ranging from 2.1MHz to 2.7GHz. It supports reference inputs up to 425MHz and operates within a junction temperature range of –40°C to 105°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrated VCO with output frequency range of 2.1MHz to 2.7GHz
• Output jitter of 90fs RMS (12kHz to 20MHz) and 115fs RMS (ADC SNR Method)
• Five independent outputs: four CML and one LVDS with programmable delays
• Supports EZSync™ and ParallelSync™ multichip synchronization

Clock Generators, PLLs, Frequency Synthesizers Applications

• High performance data converter clocking
• Wireless infrastructure systems
• Test and measurement equipment

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the ordering suffix #TRPBF indicates tape and reel packaging. Confirm the IUHF designation corresponds to the 40-lead 5mm x 7mm plastic QFN package. Ensure the -1 suffix is required for applications needing frequencies above 2.5GHz. Check that the component meets the specified –40°C to 105°C operating junction temperature range.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select the LTC6951IUHF-1#TRPBF when output frequencies fall between 2.1MHz and 2.7GHz. Use the standard LTC6951 for frequencies up to 2.5GHz. Consider the integrated VCO if external components are undesirable. Verify that the serial interface and power supply requirements (3.3V and 5V rails) align with the system design.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the LTC6951 family of clock synthesizers. The IUHF-1 variant specifically extends the frequency capability compared to the base LTC6951 model. It is designed for applications requiring precise phase alignment and low jitter across multiple output channels without external VCO calibration.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.