SI5344A-B03037-GM

Clock Generators, PLLs, Frequency Synthesizers Overview

The SI5344A-B03037-GM is a factory preprogrammed clock synthesizer and jitter attenuator from the Si5344 Rev D family. It features four inputs and four outputs, supporting integer and fractional frequency synthesis with output frequencies up to 1028 MHz. The device utilizes fourth-generation DSPLL technology for ultra-low jitter performance of 90 fs rms. It operates on a single 1.8 V core voltage and includes in-circuit programmable non-volatile memory. The component is housed in a 44-QFN package measuring 7x7 mm and supports an operating 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 integer and fractional synthesis modes.
• Features ultra-low jitter performance of 90 fs rms with digitally programmable jitter attenuation bandwidth.
• Supports hitless input clock switching, free-run, and holdover modes with automatic or manual selection.
• Includes highly configurable outputs compatible with LVDS, LVPECL, LVCMOS, CML, and HCSL signal formats.

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 B03037 suffix against project requirements. Confirm that the standard 44-QFN package dimensions and pinout match the PCB layout. Ensure compatibility with the I2C or SPI serial interface used by the host system for status monitoring.

Clock Generators, PLLs, Frequency Synthesizers Selection Notes

Select this part when low jitter and flexible frequency generation are required for high-speed networking applications. The Si5344A variant supports differential outputs up to 1028 MHz. Verify that the external crystal frequency falls within the recommended 25 to 54 MHz range for optimal performance. Consider the integrated loop filter benefits over discrete solutions.

Clock Generators, PLLs, Frequency Synthesizers Part Context

This component belongs to the Si5344 Rev D series, which combines DSPLL and MultiSynth technologies. It is designed for applications requiring precise clock distribution and jitter cleaning. The device offers four inputs and four outputs, distinguishing it from the Si5345 (10 outputs) and Si5342 (2 outputs) variants within the same family.

Clock Generators, PLLs, Frequency Synthesizers Replacement Considerations

Si5344A-D-GM serves as the base generic model for this device family. Other variants include Si5344B-D-GM for lower frequency ranges and Si5344C-D-GM for integer-only synthesis. Factory preprogrammed versions may have different suffixes depending on the specific configuration.