512ACA000439AAG

Overview

The Skyworks 512ACA000439AAG is a standard crystal oscillator (XO) from the Si512 series, housed in a compact 6-SMD, No Lead package measuring 7.00 mm x 5.00 mm with a height of 1.80 mm. It operates on a single 3.3 V supply voltage and delivers an LVPECL output format. The device supports dual frequency outputs at 128.788 MHz and 156.25 MHz, maintaining a frequency stability of ±20 ppm across the operating temperature range of -40°C to +85°C. Maximum current consumption is rated at 43 mA during active operation, with a disabled state drawing up to 18 mA. The component features an enable/disable function for power management.

Feature Summary

• Dual-frequency output capability supporting 128.788 MHz and 156.25 MHz selections
• LVPECL output interface optimized for high-speed digital applications
• Integrated enable/disable control pin for dynamic power management
• Compact surface-mount packaging suitable for space-constrained designs

Applications

• High-speed data communication interfaces requiring precise clocking
• Network infrastructure equipment utilizing multiple clock domains
• Consumer electronics with strict size and power constraints
• Industrial control systems needing stable timing references

Procurement Notes

Verify the specific suffix 'AAG' against the manufacturer's latest datasheet to confirm package type and tape/reel specifications. Ensure the design accommodates the 3.3 V supply rail and LVPECL load requirements. Confirm availability through authorized distributors as lead times may vary based on production schedules. Check for RoHS compliance status if required by regional regulations.

Selection Notes

Select this component when dual-frequency flexibility is required within a single package footprint. The LVPECL output is suitable for differential signaling paths, reducing noise susceptibility compared to single-ended formats. Consider the ±20 ppm stability requirement against system jitter budgets. Evaluate the 43 mA current draw against total system power constraints, especially in battery-operated devices where the disable feature can mitigate standby consumption.

Part Context

This part belongs to the Si512 family of pin-configurable oscillators from Skyworks Solutions. The family offers various output formats and frequencies in standardized packages. The 512ACA variant specifically targets 3.3 V applications with LVPECL outputs. It serves as a drop-in replacement for legacy oscillators requiring dual-frequency support without increasing board space.

Replacement Considerations

The parameter-equivalent substitute is 512ACA000543AAG. Verify that the substitute matches the exact dual frequencies (128.788 MHz/156.25 MHz) and LVPECL output format. Ensure the package dimensions and pinout are identical to avoid PCB rework. Confirm that the stability and current specifications meet or exceed the original design requirements.