SI5345B-B04202-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345B-B04202-GM is a 10-output jitter attenuator and clock multiplier from the Si5345 family, manufactured by Skyworks Solutions Inc. It utilizes fourth-generation DSPLL and MultiSynth technologies to generate any combination of output frequencies from any input frequency. The device supports differential inputs ranging from 8 kHz to 750 MHz and LVCMOS inputs up to 250 MHz. Output frequencies range from 100 Hz to 350 MHz for differential outputs and 100 Hz to 250 MHz for LVCMOS outputs. It features ultra-low jitter performance of 90 fs rms and meets ITU-T G.8262 EEC Option 1 and 2 (SyncE) standards. The component operates within a temperature range of -40°C to +85°C and is housed in a 64-QFN package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using fractional and integer synthesis.
• Features programmable jitter attenuation bandwidth ranging from 0.1 Hz to 4 kHz for optimized performance.
• Supports hitless input clock switching with automatic or manual selection capabilities.
• 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 ordering suffix against the manufacturer's current documentation to ensure compatibility with required packaging options and factory preprogramming configurations. Confirm that the B-series designation aligns with the intended maximum output frequency requirements for the application design.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when applications require ten independent output clocks with low jitter performance below 350 MHz. Ensure the system design accommodates the 64-QFN package dimensions and provides appropriate thermal management for the specified operating temperature range. Verify input signal levels match the supported differential or LVCMOS specifications.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345/44/42 Rev D family of jitter attenuators. The Si5345 variant specifically offers four inputs and ten outputs, distinguishing it from the Si5344 (four outputs) and Si5342 (two outputs). All variants share similar core technologies but differ in pin count and output capacity.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other SKUs within the Si5345 family such as SI5345A-D-GM or SI5345C-D-GM, depending on whether higher frequency ranges or integer-only synthesis are required. Cross-family substitution with Si5344 or Si5342 models requires verifying output count sufficiency.