554AJ000398DG

Pin ConfigurableSelectable Oscillators Overview

The Skyworks Solutions Inc. 554AJ000398DG is a pin-configurable Voltage-Controlled Crystal Oscillator (VCXO) designed for precision timing applications. It operates within a frequency range of 10 MHz to 1.4 GHz, offering ±20 ppm frequency stability across the industrial temperature range of -40°C to +85°C. The device supports LVPECL output format and functions on a 3.3 V supply voltage, with operating limits between 2.97 V and 3.63 V. It features a load capacitance of 15 pF and is housed in a compact 7 mm x 5 mm surface-mount package with a height of 1.65 mm.

Pin ConfigurableSelectable Oscillators Feature Summary

• Pin-configurable architecture allows flexible integration into various circuit designs without additional external components.
• Provides high frequency stability of ±20 ppm over the full industrial operating temperature range.

Pin ConfigurableSelectable Oscillators Applications

• Precision timing systems requiring stable clock signals
• Telecommunications infrastructure equipment
• Data communication interfaces

Pin ConfigurableSelectable Oscillators Procurement Notes

Verify the specific output configuration and frequency settings against the official datasheet before procurement, as pin-configuration options may vary. Ensure that the PCB layout accommodates the 7 mm x 5 mm SMD footprint and maintains signal integrity for LVPECL outputs. Confirm compatibility with the target system's power supply voltage range of 2.97 V to 3.63 V to prevent operational issues.

Pin ConfigurableSelectable Oscillators Selection Notes

Select this component when a wide tuning range from 10 MHz to 1.4 GHz is required alongside strict stability constraints of ±20 ppm. The LVPECL output format is suitable for high-speed digital interfaces. Consider the 3.3 V supply requirement and the specific thermal performance needed for environments ranging from -40°C to +85°C during the design phase.

Pin ConfigurableSelectable Oscillators Part Context

This VCXO belongs to the Si554 series of pin-selectable oscillators from Skyworks Solutions. These devices are engineered to replace multiple fixed-frequency oscillators by offering configurable parameters through pin selection. The series is widely used in applications demanding compact form factors and reliable performance in harsh environmental conditions.

Pin ConfigurableSelectable Oscillators Replacement Considerations

Direct substitutes include other Skyworks Si554 series variants with matching frequency ranges and output formats. Verify pinout compatibility and electrical specifications such as supply voltage and load capacitance when considering alternative part numbers from the same manufacturer family.