SI5392P-A-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The Skyworks SI5392P-A-GM is a jitter attenuator and clock multiplier featuring four inputs and two outputs. It utilizes fourth-generation DSPLL technology to achieve ultra-low phase jitter of 69 fs RMS. The device supports integer and fractional frequency synthesis, generating output frequencies from 100 Hz to 1028 MHz. It operates with an external crystal reference and accepts differential input frequencies up to 750 MHz or LVCMOS up to 250 MHz. The component is housed in a 44-QFN package measuring 7x7 mm and functions within a temperature range of -40°C to +85°C.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using DSPLL and MultiSynth technologies
• Provides enhanced hitless switching to minimize output phase transients during clock transitions
• Supports free-run, synchronous, and holdover modes for robust system operation
• Features programmable jitter attenuation bandwidth and status monitoring capabilities

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 ordering part number against the manufacturer's current documentation to ensure compatibility with required frequency plans and package types. Confirm that the external crystal specifications meet the requirements for the P-grade performance level. Check for any updates regarding RoHS compliance and environmental certifications before finalizing procurement orders.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when ultra-low jitter performance is critical for high-speed serial data applications. Ensure the design accommodates an external crystal reference as this grade does not include an integrated oscillator. Verify that the required output frequency range and format are supported by the two available outputs. Consider the programming interface and software tools needed for configuration.

Clock Generators, PLLs, Frequency Synthesizers Part Context

The SI5392P-A-GM belongs to the Si5392 family, which offers two outputs in a compact 44-pin package. It is designed as a drop-in replacement for older Si5342 devices while providing superior jitter performance. The P-grade specifically targets precision calibration needs with fixed loop bandwidth characteristics optimized for low-jitter applications.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The datasheet explicitly states that the Si5392 series is drop-in compatible with the Si5342. Designers migrating from the Si5342 should verify pinout compatibility and update configuration files using ClockBuilder Pro software to leverage the improved jitter performance.