SI5346A-B03097-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5346A-B03097-GM is a dual DSPLL jitter attenuator manufactured by Skyworks Solutions Inc. It features two independent Dual-Source Phase-Locked Loops (DSPLLs) and four outputs housed in a 44-QFN package. The device supports any-frequency conversion with an ultra-low typical jitter of 95 fs rms (12 kHz to 20 MHz). Input frequencies range from 8 kHz to 750 MHz for differential signals, while output frequencies extend up to 720 MHz for differential configurations. It operates on a core voltage of 1.8 V ±5% and includes programmable non-volatile memory for configuration storage.

Clock Generators, PLLs, Frequency Synthesizers Feature Summary

• Dual independent DSPLL architecture enabling flexible routing between inputs and outputs
• Ultra-low jitter performance with typical RMS values under 100 fs
• Supports hitless input switching and automatic holdover modes
• Programmable via serial interface with in-circuit non-volatile memory

Clock Generators, PLLs, Frequency Synthesizers Applications

• OTN Muxponders and Transponders
• 10/40/100G network line cards
• GbE/10 GbE/100 GbE Synchronous Ethernet (ITU-T G.8262)
• Carrier Ethernet switches
• Broadcast video

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 or factory pre-programming configurations. Confirm that the custom numerical sequence corresponds to the intended frequency plan and operational settings before finalizing procurement orders.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this component when a compact form factor with dual independent timing paths is required. Ensure the application utilizes differential outputs if frequencies exceeding 250 MHz are necessary. Verify that the external crystal selection aligns with the recommended 48 MHz to 54 MHz range for optimal jitter performance.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This part belongs to the Si5346 family, which serves as the dual DSPLL variant within the broader Si5347/46 series. While the Si5347 offers quad DSPLLs and eight outputs in a larger package, the Si5346 provides equivalent jitter attenuation capabilities in a smaller 44-QFN footprint, making it suitable for space-constrained designs requiring multiple independent clock domains.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

The Si5346B-D-GM is a confirmed alternative within the same product family offering similar functionality with different maximum output frequency specifications.