SKY13405-490LF

RF Switches Overview

The SKY13405-490LF is a CMOS, Silicon-On-Insulator (SOI) single-pole, double-throw (SPDT) RF switch designed for high-performance wireless applications. It operates within a frequency range of 0.1 to 3.0 GHz with a nominal impedance of 50 Ohms. The device features ultra-high linearity, achieving an IP1dB of +38 dBm and IMD3 below -100 dBm at 1.0 GHz. Insertion loss is typically 0.3 dB at 1.0 GHz. It functions on a DC supply voltage between 2.5 V and 4.8 V without requiring external DC blocking capacitors. The component is housed in a compact 12-pin QFN package measuring 2 x 2 mm.

RF Switches Feature Summary

• Ultra-high linearity performance suitable for stringent CDMA simultaneous voice and LTE data requirements
• Reflective short configuration on the isolated port to enhance isolation characteristics
• Integrated design eliminates the need for external DC blocking capacitors
• Compact quad flat no-lead package optimized for space-constrained mobile devices

RF Switches Applications

• CDMA simultaneous voice and LTE data (SVLTE) handsets
• Mobile WiMAX terminals
• Smartphones requiring high linearity RF switching
• Wireless communication modules operating up to 3 GHz

RF Switches Procurement Notes

Verify that the ordering suffix matches the specific lead-free variant required for your assembly process. Confirm the package type corresponds to the 12-pin QFN footprint dimensions. Ensure the DC supply voltage range aligns with your system's power management architecture. Check for any specific handling instructions related to the CMOS SOI technology during storage and soldering.

RF Switches Selection Notes

Select this component when high linearity is critical to prevent signal distortion in multi-standard environments. It is appropriate for designs needing low insertion loss across a broad 0.1 to 3.0 GHz bandwidth. Consider the 2x2 mm package size if board real estate is limited. Verify that the control logic levels are compatible with the host processor before integration.

RF Switches Part Context

This part belongs to Skyworks' portfolio of RF switches engineered for mobile communications. It utilizes Silicon-On-Insulator technology to achieve superior isolation and linearity compared to standard CMOS switches. The series is targeted at modern smartphones supporting multiple radio access technologies simultaneously.

RF Switches Replacement Considerations

Direct substitutes must match the SPDT configuration, 0.1-3.0 GHz range, and 2x2 mm QFN package. Verify equivalent IP1dB and IMD3 specifications to maintain system linearity. Cross-reference pinouts to ensure compatibility with existing PCB layouts.