SI5345D-B03700-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5345D-B03700-GM is a 10-output jitter attenuator and clock multiplier from the Si5345 family. It supports any-frequency generation with output frequencies up to 350 MHz using integer and fractional synthesis modes. The device features four inputs, accepting differential signals up to 750 MHz or LVCMOS up to 250 MHz. It utilizes fourth-generation DSPLL technology for ultra-low jitter performance of 90 fs rms. The component operates on a core voltage of 1.8 V and an analog supply of 3.3 V, housed in a 64-QFN 9x9 mm package.

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 ensure compatibility with required factory preprogramming configurations. Confirm that the device meets all environmental compliance standards such as RoHS-6. Check for availability of evaluation boards like the SI5345-D-EVB for design validation purposes.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this model when ten independent output clocks are required with frequencies capped at 350 MHz. Ensure the application supports the 64-QFN package dimensions. Verify that the system can accommodate the specified dual-voltage power requirements of 1.8 V and 3.3 V. Confirm that the serial interface configuration aligns with the host controller capabilities.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5345/44/42 Rev D series, which integrates fourth-generation DSPLL and MultiSynth technologies. The Si5345 variant specifically provides four inputs and ten outputs within a 64-QFN footprint. It is designed for high-performance clock distribution where jitter attenuation and flexible frequency synthesis are critical requirements.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Direct replacements include other Si5345 variants such as SI5345A-D-GM or SI5345C-D-GM, depending on whether higher frequency ranges or integer-only synthesis are needed. Ensure the pinout and package dimensions remain identical when substituting.