SI5340A-B-GM

Overview

The Skyworks SI5340A-B-GM is a programmable clock generator utilizing MultiSynth technology to generate up to four unique output frequencies with zero ppm synthesis error. It features an integrated phase-locked loop and fractional dividers, supporting any-frequency input to any-frequency output within the 100 Hz to 712.5 MHz range. The device operates on a single 1.8 V or 3.3 V supply and includes in-circuit programmable non-volatile memory for power-up configuration. It accepts reference inputs from crystals or external clocks via XA/XB, IN0, IN1, or IN2 pins.

Feature Summary

• MultiSynth technology enables any-frequency generation with 0 ppm frequency synthesis error across four outputs.
• Integrated PLL and fractional dividers eliminate the need for external loop filter components.
• Supports factory or in-circuit programmable non-volatile memory (NVM) for persistent configuration storage.
• Flexible output drivers configurable for LVPECL, LVDS, HCSL, CML, and LVCMOS signal formats.

Applications

• High-performance networking equipment requiring precise clock distribution.
• Telecommunications infrastructure utilizing low-jitter clock generation.
• Data center servers and storage systems needing flexible frequency plans.
• Test and measurement instruments requiring accurate frequency synthesis.

Procurement Notes

Verify the specific suffix 'B' against official Skyworks documentation to confirm factory preprogramming details. Confirm package type and operating temperature range match design requirements. Ensure compatibility with ClockBuilder Pro software for register map configuration before procurement.

Selection Notes

Select this component when four independent output clocks are required with ultra-low jitter performance. Verify that the maximum output frequency of 712.5 MHz meets system needs. Check if the 44-pin QFN package fits the PCB layout constraints. Consider using ClockBuilder Pro to optimize divider settings for the desired input and output frequencies.

Part Context

The SI5340A-B-GM belongs to the Si5341/40 Rev D family of clock generators. It shares core architecture with the Si5341 but offers four outputs instead of ten, housed in a 44-pin QFN package compared to the Si5341's 64-pin QFN. This family is designed for applications demanding high flexibility and superior jitter performance.

Replacement Considerations

Direct replacements within the same family include other Si5340 variants with different output frequencies or preprogramming options. For higher output counts, the Si5341 series serves as an alternative. Verify pinout compatibility and electrical specifications when substituting with other clock generators.