SI5344H-C05139-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The Si5344H-C05139-GMR is a high-frequency, ultra-low jitter attenuating clock multiplier featuring fourth-generation DSPLL and MultiSynth technologies. It provides two inputs and four outputs in a QFN-44 package. High-Frequency Mode supports up to 2.75 GHz with typical phase jitter of 50 fs-rms (1 MHz–40 MHz). MultiSynth Mode enables any frequency up to 717.5 MHz with typical jitter under 150 fs-rms (12 kHz–20 MHz). The device accepts input frequencies from 8 kHz to 750 MHz. Core supply voltage is 1.8 V ±5%, while output drivers support independent 1.8 V, 2.5 V, or 3.3 V supplies. Operating temperature range is –40 °C to +85 °C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Combines fourth-generation DSPLL with MultiSynth technology for flexible frequency synthesis
• Supports Digitally Controlled Oscillator (DCO) mode with step control as low as 0.001 ppb
• Features fully integrated on-chip loop filter to eliminate discrete noise coupling risks
• Includes in-circuit programmable non-volatile memory for known power-up configuration

Clock Generators, PLLs, Frequency Synthesizers Applications

• 100G/200G/400G Coherent Optical Transceivers
• Wireless base-stations
• Clocking Forward Error Correction (FEC) circuits

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory preprogrammed frequency plan associated with the C05139 suffix against system requirements before procurement. Confirm that the GMR suffix indicates tape-and-reel packaging suitable for automated surface-mount assembly processes. Ensure compatibility with standard I2C or SPI programming interfaces if field reconfiguration is required.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when ultra-low jitter performance is critical for coherent optical applications. The Si5344H offers four outputs compared to the two available in the Si5342H variant. Utilize ClockBuilder Pro software to optimize loop bandwidth and verify that the desired output frequencies fall within the specified High-Frequency or MultiSynth operational modes.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5344H/42H Rev D family of high-frequency clock multipliers. It is functionally similar to the Si5344H-D-GM but differs in its factory preprogramming. The Si5344H series integrates advanced jitter attenuation capabilities designed specifically for demanding telecommunications and high-speed data transmission environments requiring precise timing signals.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Si5344H-D-GM