SI5394J-A14065-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The Skyworks SI5394J-A14065-GM is a single PLL jitter attenuator and clock multiplier featuring an integrated 48 MHz reference crystal. It provides four differential or single-ended outputs with frequencies ranging from 100 Hz to 1028 MHz using integer and fractional synthesis modes. The device utilizes fourth-generation DSPLL technology to achieve ultra-low phase jitter, supporting input frequencies up to 750 MHz differentially. It operates within a temperature range of -40°C to +85°C and includes in-circuit programmable non-volatile memory for configuration storage.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Integrates a 48 MHz reference crystal to reduce board space and acoustic noise sensitivity
• Supports enhanced hitless switching to minimize output phase transients during input clock changes
• Features free-run, synchronous, and holdover modes for continuous clock generation
• Includes in-circuit programmable non-volatile memory for persistent frequency configuration

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
• Test and measurement equipment

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific factory preprogrammed configuration associated with the A14065 suffix against the target system requirements before procurement. Confirm that the 44-LGA package dimensions align with the PCB footprint design. Ensure the serial interface connections match the I2C or SPI protocol settings defined in the datasheet.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this grade when an integrated reference is required to save board space and improve reliability compared to external crystal solutions. Verify that the output frequency range up to 1028 MHz meets the application needs. Consider the operating temperature range and power supply requirements to ensure compatibility with the system environment.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5394 family, which offers four inputs and four outputs. It is part of a broader series including Si5395 and Si5392 variants with different output counts. The J-grade designation specifically indicates the inclusion of an internal oscillator, distinguishing it from A/B/C/D grades that require external references.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The Si5394A-Axxxxx-GM series serves as a drop-in compatible alternative if an external crystal reference is preferred. Other members of the Si5394 family may be considered if different output counts or synthesis modes are required.