SI5345A-B03652-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345A-B03652-GMR is a factory preprogrammed clock synthesizer and jitter attenuator from Skyworks Solutions. It features four inputs and ten outputs, supporting any-frequency generation up to 1028 MHz using integer and fractional synthesis modes. The device utilizes fourth-generation DSPLL and MultiSynth technologies to achieve ultra-low jitter performance of 90 fs rms. It operates within a temperature range of -40°C to +85°C and is housed in a 64-QFN package measuring 9x9 mm.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency
• Ultra-low jitter of 90 fs rms
• Programmable jitter attenuation bandwidth: 0.1 Hz to 4 kHz
• Highly configurable outputs compatible with LVDS, LVPECL, LVCMOS, CML, and HCSL

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 availability status and packaging details. Factory preprogrammed devices require unique numerical sequences assigned by Skyworks. Confirm RoHS compliance and lead times directly with authorized distributors or the manufacturer before finalizing procurement plans.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model for applications requiring high channel counts and flexible frequency synthesis. Ensure the design supports the required input voltage levels and output drive strengths. Utilize ClockBuilder Pro software to configure the serial interface and non-volatile memory settings for optimal jitter performance and operational mode selection.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345 family of jitter attenuators. It shares architectural similarities with the Si5344 and Si5342 models but offers a higher output count. The 'A' designation indicates support for frequencies up to 1028 MHz with integer and fractional synthesis capabilities.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Si5345A-D-GMR

Clock Generators, PLLs, Frequency Synthesizers FAQ

What is the maximum output frequency supported by this device?

The device supports differential output frequencies ranging from 100 Hz to 1028 MHz.

How is the loop filter implemented in this component?

The loop filter is fully integrated on-chip, eliminating the risk of noise coupling associated with discrete solutions.

Can the device switch between input clocks without glitches?

Yes, it supports hitless input clock switching for fractionally related inputs and glitchless switching for inputs up to ±500 ppm apart.