SKY19225-001

RF Switches Overview

The SKY19225-001 is a wafer level chip scale package (WLCSP) single-pole, four-throw (SP4T) switch designed for antenna tuning applications requiring very low on-resistance and off-capacitance. It operates within a frequency range of 0.1 to 2.7 GHz. Key electrical parameters include an on-resistance of 1.3 ohms, off-capacitance of 285 fF, and isolation of +33 dB at 2.7 GHz. The device supports a peak voltage of 39 V and requires a supply voltage between 2.4 and 4.8 V. Control logic is GPIO-based with two control pins and one enable pin.

RF Switches Feature Summary

• Compact WLCSP design with 11 bumps for board-level assembly
• Integrated GPIO control interface eliminating need for external DC blocking capacitors
• High linearity and high isolation performance across wide bandwidth

RF Switches Applications

• Antenna tuning systems
• Impedance matching networks
• LTE transmission modules
• WCDMA transmission modules
• GSM transmission modules

RF Switches Procurement Notes

Verify part status as obsolete before procurement planning. Confirm package specifications match the 1.685x1.685x0.547 mm WLCSP footprint. Ensure compatibility with MSL1 rating and 260°C reflow profile per JEDEC J-STD-020 standards. Validate GPIO control voltage levels against system requirements.

RF Switches Selection Notes

Select this component for designs prioritizing minimal parasitic capacitance and resistance in RF signal paths. Suitable for multi-standard mobile devices requiring compact form factors. Consider thermal management within the small package constraints. Verify that the 39 V peak voltage rating exceeds maximum expected RF power levels in the application.

RF Switches Part Context

Skyworks Solutions Inc. manufactures this SP4T switch targeting high-performance wireless communication devices. The device integrates advanced silicon technology into a miniature footprint. It addresses industry demands for reduced board space while maintaining signal integrity in complex RF front-end architectures.

RF Switches Replacement Considerations

No public confirmed substitute part numbers are available in official documentation. Check Skyworks portfolio for newer generations of SP4T switches if availability is critical.