SI5345D-B04528-GMR

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345D-B04528-GMR is a 10-channel, any-frequency jitter attenuator and clock multiplier from Skyworks Solutions. It utilizes fourth-generation DSPLL and MultiSynth technologies to generate output frequencies ranging from 100 Hz to 350 MHz with ultra-low jitter of 90 fs rms. The device features four inputs (differential: 8 kHz–750 MHz; LVCMOS: 8 kHz–250 MHz) and ten configurable outputs supporting LVDS, LVPECL, LVCMOS, CML, and HCSL formats. It operates on a core voltage of 1.8 V ±5% and an I/O voltage of 3.3 V ±5%, housed in a 64-QFN 9×9 mm package.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Generates any combination of output frequencies from any input frequency using fractional synthesis.
• Integrates a fully on-chip loop filter to eliminate discrete noise coupling risks.
• Supports hitless input switching between fractionally related clocks.
• Includes programmable jitter attenuation bandwidth for application-level optimization.

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 that the component meets RoHS-6 compliance standards. Ensure the serial interface configuration matches the system requirements before finalizing procurement.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when output frequencies are required up to 350 MHz. Verify that the input signal format aligns with the supported differential or LVCMOS ranges. Ensure the design accommodates the 64-QFN package dimensions and thermal requirements for the specified operating temperature range.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345 family, which includes variants with different output counts and frequency capabilities. The 'D' designation indicates a maximum output frequency limit of 350 MHz, distinguishing it from 'A' and 'C' variants that support higher frequencies or integer-only modes.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements within the same series include SI5345B-D-GM or SI5345A-D-GM, depending on whether the 350 MHz or 1028 MHz frequency range is required. Ensure the replacement part supports the necessary output count and input configurations.