SI5345B-B05169-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345B-B05169-GM is a factory preprogrammed, 10-output jitter attenuator and clock multiplier from the Si5345 family. It utilizes fourth-generation DSPLL and MultiSynth technologies to generate any combination of output frequencies from any input frequency. 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 for differential formats and 100 Hz to 250 MHz for LVCMOS. It features ultra-low jitter performance of 90 fs rms, programmable jitter attenuation bandwidth from 0.1 Hz to 4 kHz, and in-circuit programmable non-volatile memory. The component operates 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 fractional synthesis.
• Provides ultra-low jitter performance with digitally programmable jitter attenuation bandwidth.
• Supports hitless input clock switching between fractionally related inputs.
• Includes in-circuit programmable non-volatile memory for known power-up configuration.

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 factory preprogrammed configuration associated with the B05169 suffix against project requirements. Confirm that the ordering part number matches the required package type and revision level. Ensure compatibility with the ClockBuilder Pro software version used for design validation. Check for any recent product change notices regarding the manufacturing site or material composition.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this variant when a fixed, preconfigured frequency plan is required without on-site programming. The 'B' designation indicates a maximum output frequency limit of 350 MHz, suitable for lower-frequency jitter cleaning applications. Verify that the 10-output count meets system needs, as other family members offer fewer outputs. Ensure the application can accommodate the 64-QFN 9x9 mm package footprint.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345/44/42 Rev D family of jitter attenuators. The Si5345 model specifically provides four inputs and ten outputs in a 64-QFN package. The 'D' suffix denotes the hardware revision, while the alphanumeric code following it represents a unique factory preprogrammed configuration assigned by Skyworks Solutions.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

SI5345B-D-GM

Clock Generators, PLLs, Frequency Synthesizers FAQ

What is the function of the B05169 suffix?

The B05169 suffix identifies a specific factory preprogrammed configuration for the Si5345B-D device. It ensures the unit powers up with a known frequency plan without requiring external programming.

Does the device support gapped clock inputs?

Yes, the internal DSPLL supports locking to gapped clock inputs, provided the valid frequency is at least 10 MHz with no more than two missing cycles out of every eight.

How is input switching handled?

The device supports both manual and automatic input switching. It also features hitless switching for fractionally related inputs and ramped switching for plesiochronous inputs to avoid frequency transients.