SI5340A-A-GMR

Overview

The Skyworks SI5340A-A-GMR is a programmable clock generator from the Si5341/40 Rev D family, utilizing MultiSynth technology for any-frequency synthesis. It features four outputs capable of generating frequencies up to 1.028 GHz with sub-100 fs rms phase jitter and 0 ppm error. The device integrates a wide-band PLL and fractional dividers within a 44-pin QFN package. It supports factory or in-circuit programmable non-volatile memory (NVM) for power-up configuration via I2C/SPI interfaces.

Feature Summary

• MultiSynth™ Technology: Enables integer and non-integer frequency synthesis with 0 ppm error across all outputs.
• Ultra-Low Jitter: Delivers sub-100 fs rms phase jitter performance per output.
• Flexible Configuration: Supports any input frequency to any output frequency mapping with independent output formats.
• Integrated NVM: Includes in-circuit programmable non-volatile memory to store default configurations.

Applications

• High-performance networking equipment requiring precise timing.
• Telecommunications infrastructure base stations.
• Data center servers and storage systems needing low-jitter clock distribution.

Procurement Notes

Verify the specific ordering suffix 'GMR' indicates tape-and-reel packaging by consulting the manufacturer's official datasheet or distributor specifications. Confirm that the 'A' variant matches the required electrical parameters and package type for the target application design.

Selection Notes

Select this model when four differential or single-ended clock outputs are required with ultra-low jitter performance. Ensure the design accommodates the 44-pin QFN package dimensions and thermal requirements. Verify compatibility with the ClockBuilder Pro software for initial configuration and register map generation.

Part Context

This component belongs to the Si5340 family, which offers four outputs, distinct from the ten-output Si5341 variant. Both share the same underlying MultiSynth architecture and Rev D silicon revision, ensuring consistent feature sets regarding jitter performance and programmability within their respective output counts.

Replacement Considerations

Direct replacements include other Si5340 family members such as SI5340A-D-GM or SI5340B-B05881-GMR, provided the pinout and electrical characteristics remain compatible. Base devices (blank parts) can be programmed in-circuit but require external configuration tools rather than relying on factory pre-programmed settings.