SI5344D-B05357-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The Skyworks SI5344D-B05357-GM is a low-jitter, four-output clock synthesizer and jitter attenuator from the Si5344 Rev D family. It utilizes fourth-generation DSPLL and MultiSynth technologies to generate any frequency combination from any input source. The device supports differential inputs up to 750 MHz and LVCMOS inputs up to 250 MHz. Output frequencies range from 100 Hz to 350 MHz in differential formats. Key electrical parameters include a 90 fs rms ultra-low jitter performance, a 1.8 V core voltage (VDD), and a 3.3 V analog supply (VDDA). It operates within a temperature range of -40°C to +85°C and is housed in a 44-QFN package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using fractional and integer synthesis modes.
• Features an integrated loop filter and digitally programmable jitter attenuation bandwidth for optimized noise performance.
• Supports hitless input clock switching with automatic or manual selection capabilities.
• Includes in-circuit programmable non-volatile memory to ensure known frequency configuration upon power-up.

Clock Generators, PLLs, Frequency Synthesizers Applications

• OTN muxponders and transponders
• 10/40/100 G networking line cards
• GbE/10 GbE/100 GbE Synchronous Ethernet (ITU-T G.8262)
• Carrier Ethernet switches
• SONET/SDH line cards

Clock Generators, PLLs, Frequency Synthesizers Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm factory preprogramming details. Confirm package availability and lead times directly with authorized distributors. Ensure compliance with RoHS-6 standards and check for any product change notifications affecting this specific part number revision before finalizing procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select the SI5344D variant when the application requires output frequencies limited to 350 MHz. This model supports both integer and fractional synthesis modes. Verify that the required input frequency range fits within the 750 MHz differential limit. Use ClockBuilder Pro software to configure the specific frequency plan and verify compatibility with the target system's voltage requirements.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5344 Rev D series, which offers four inputs and four outputs in a compact 44-QFN package. It shares architectural similarities with the Si5345 and Si5342 models but differs in output count and maximum frequency capabilities. The 'D' designation indicates support for frequencies up to 350 MHz, distinguishing it from the 'A' variant which supports higher frequencies.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The SI5344B-D-GM serves as a functional replacement if the application does not require the specific factory preprogrammed configuration of the B05357 suffix. Both parts share identical electrical specifications and pinouts. Ensure that the replacement part meets the same jitter and frequency requirements.