SI5394E-A-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5394E-A-GMR is a jitter attenuator and clock multiplier from the Si5394 family, featuring four inputs and four outputs. It utilizes fourth-generation DSPLL technology with an integrated reference oscillator to achieve ultra-low phase jitter of 71 fs RMS. The device supports integer and fractional frequency synthesis modes, generating output frequencies ranging from 0.0001 MHz to 1028 MHz. It operates within a temperature range of -40°C to +85°C and is housed in a 44-LGA package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates an internal crystal reference to reduce board space and acoustic emissions noise.
• Provides enhanced hitless switching capabilities to minimize output phase transients during input clock changes.
• Supports free-run, synchronous, and holdover modes for robust clock synchronization.
• Features programmable jitter attenuation bandwidth and fast-lock acquisition.

Clock Generators, PLLs, Frequency Synthesizers Applications

• 56G/112G PAM4 SerDes clocking
• OTN muxponders and transponders
• 10/40/100/200/400G networking line cards
• Medical imaging systems

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct configuration. Confirm that the integrated reference variant matches the design requirements, as external references are not supported for this grade. Check for any recent product change notifications or end-of-life notices before finalizing procurement plans.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select the SI5394E-A-GMR when an integrated reference is required to save board space and improve reliability compared to external crystal solutions. Ensure the application benefits from the 71 fs RMS jitter performance and supports the 44-LGA package form factor. Verify compatibility with ClockBuilder Pro software for configuration and programming via the serial interface.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5394 family, which offers 4 inputs and 4 outputs. It is part of a broader lineup including Si5395 (12 outputs) and Si5392 (2 outputs). The 'E' grade specifically denotes the integration of an internal reference oscillator, distinguishing it from grades A through D which require external crystals.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The Si5394A-A-GM serves as a drop-in compatible alternative using an external reference. Other family members like the Si5394J-A-GMR share the integrated reference architecture but may differ in specific calibration or domain configurations.