591UD-DDG

Programmable Oscillators Overview

The Skyworks Solutions Inc. 591UD-DDG is a programmable standard clock oscillator from the Si591 series, designed for high-performance timing applications. It operates at a supply voltage of 2.5 V and features CML output format with an enable/disable function. The device exhibits a frequency stability of ±7 ppm and draws a maximum current of 100 mA during operation. It utilizes a crystal as the basic resonator and is housed in a compact 6-SMD, no-lead package measuring 7.00 mm by 5.00 mm with a maximum height of 1.80 mm. The component supports surface mount installation and functions within a temperature range of -40°C to +85°C.

Programmable Oscillators Feature Summary

• Programmable single-frequency general-purpose oscillator capability
• CML output interface with active enable and disable control
• Compact 6-SMD surface-mount package design

Programmable Oscillators Applications

• High-speed data communication systems requiring precise clocking
• Network infrastructure equipment demanding low phase noise
• Test and measurement instruments needing stable frequency references

Programmable Oscillators Procurement Notes

Verify the specific programming requirements and initial frequency configuration before procurement, as this is a programmable device. Confirm that the CML output format aligns with the receiving circuit's input specifications. Ensure the 2.5 V supply voltage matches the system power architecture. Check for any required external components for stabilization or termination. Validate the package dimensions against the PCB footprint to ensure mechanical compatibility.

Programmable Oscillators Selection Notes

Select this model when a highly stable ±7 ppm frequency reference is required in a small form factor. It is suitable for designs where CML signaling is preferred over LVDS or LVPECL. Consider the programmability feature if multiple frequency variants are needed across different product versions. Evaluate the 100 mA current consumption against thermal constraints. Compare against fixed-frequency alternatives if reprogramming capabilities are not necessary for the application.

Programmable Oscillators Part Context

The 591UD-DDG belongs to the Si591 family of standard oscillators manufactured by Skyworks Solutions Inc. This series provides various output formats and frequencies tailored for digital signal processing and networking. The part shares common packaging and operational characteristics with other Si591 models but is distinguished by its specific programmability and CML output configuration.

Programmable Oscillators Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.