SKY13418-485LF

RF Switches Overview

The SKY13418-485LF is a single-pole eight-throw (SP8T) RF switch IC manufactured by Skyworks Solutions. It operates within a frequency range of 100 MHz to 6 GHz and utilizes a 14-QFN (2x2) surface-mount package. The device supports a supply voltage between 2.5 V and 4.8 V, with a high control voltage of 2.7 V. Key electrical parameters include an insertion loss of 0.6 dB at 2 GHz, typical isolation of 24 dB, and a maximum switching time of 2.2 µs. It features low power consumption with a working current of 40 µA and maintains operation across a temperature range of -40°C to +90°C.

RF Switches Feature Summary

• Single-pole eight-throw (SP8T) topology for multi-antenna switching
• High linearity performance supporting P1dB of 37 dBm and IIP3 of 66 dBm
• Low insertion loss of 0.6 dB ensuring efficient signal transmission
• Compact 14-pin QFN package suitable for space-constrained mobile designs

RF Switches Applications

• Main/diversity antenna switching in LTE handheld devices
• Antenna switching modules for data cards
• Antenna switching solutions for tablet computers
• RF front-end modules requiring multi-band support

RF Switches Procurement Notes

Verify the specific suffix '485' against the official Skyworks datasheet to confirm the exact frequency and isolation specifications, as distributor listings may vary. Ensure the procurement includes the correct packaging option, such as cut tape or reel, matching the production volume requirements. Confirm RoHS compliance status and check for any recent product change notices that might affect pinout or thermal characteristics before finalizing orders.

RF Switches Selection Notes

Select this component when designing systems requiring a single SP8T switch for antenna diversity in portable electronics. It is appropriate for applications needing low insertion loss and high linearity within the 100 MHz to 6 GHz range. Consider the 14-QFN footprint for PCB layout constraints and verify that the 2.5 V to 4.8 V supply range aligns with the system's power architecture. Evaluate the 40 µA standby current if battery life is a critical design parameter.

RF Switches Part Context

The SKY13418-485LF belongs to the Skyworks SKY13418 series of general-purpose RF switches. It is designed specifically for wireless communication devices where multiple antennas must be switched efficiently. The part integrates silicon technology to provide robust performance in compact form factors, addressing the increasing complexity of modern mobile device RF front-ends.

RF Switches Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs before attempting substitution with other SP8T switches from different manufacturers.

RF Switches FAQ

What is the maximum operating frequency of the SKY13418-485LF?

The device supports frequencies up to 6 GHz.

Does the SKY13418-485LF support antenna diversity applications?

Yes, it is specifically designed for main/diversity switching in LTE handheld devices, data cards, and tablets.

What is the typical isolation value of this switch?

The typical isolation is 24 dB.