SPDT, 0.3MHz Min, 3000MHz Max, 1 Func, 0.6dB Insertion Loss-Max, GAAS

AS179-92LF – SPDT RF Switch IC for WLAN/Bluetooth – Skyworks Solutions

Optimize your wireless designs with the Skyworks AS179-92LF RF Switch IC, engineered for seamless signal routing in compact 802.11b/g, Bluetooth, and WLAN applications. This surface-mount reflective switch delivers exceptional linearity and low insertion loss, ensuring reliable performance across consumer and industrial wireless systems. PCX ensures rapid delivery of this active-component solution with dedicated technical support.

Key Features

• Frequency Range: 20MHz to 3GHz operation
• Ultra-Low Insertion Loss: 0.4dB @ 3GHz
• High Isolation: 23dB typical
• Robust Power Handling: 34dBm P1dB, 50dBm IIP3
• Compact Footprint: SC-70-6 (SOT-363) package
• Wide Temperature Range: -40°C to +85°C
• Low Voltage Operation: 3V supply

Technical Specifications

This SPDT (Single Pole Double Throw) reflective switch features 50Ω impedance matching for minimal signal reflection. Designed for surface mounting, it uses a 6-TSSOP/SC-88 package with tape-and-reel packaging for automated assembly. The AS179-92LF supports 802.11b/g, Bluetooth, and WLAN protocols at test frequencies up to 3GHz, maintaining stable performance under extended industrial temperature conditions.

Typical Applications

• Bluetooth® headsets and audio modules
• Wi-Fi routers and 802.11b/g access points
• Wireless IoT sensors and wearables
• Portable medical monitoring devices
• Industrial remote control systems

About Skyworks Solutions

Skyworks Solutions Inc. is a global leader in high-performance analog semiconductors, driving innovation in wireless connectivity for over three decades. Their RF components are renowned for industry-leading quality and reliability, serving top-tier communications manufacturers worldwide.

With extensive expertise in RF system design, Skyworks consistently delivers cutting-edge solutions that meet rigorous automotive, industrial, and consumer certification standards. Their comprehensive portfolio supports next-generation wireless infrastructure across 5G, IoT, and broadband markets.

About RF Switches

RF switches are critical signal-routing components in wireless systems, directing high-frequency paths between antennas, amplifiers, and transceivers. Their performance directly impacts signal integrity, with low insertion loss and high isolation being essential for maintaining system efficiency and data throughput.

Modern RF switches like the AS179-92LF enable compact, power-efficient designs for space-constrained applications. Advanced semiconductor technologies allow integration of complex switching topologies into miniature packages, supporting the miniaturization trend in mobile and IoT devices while meeting demanding thermal and linearity requirements.

Packaging Options

Available in Tape & Reel (TR), Cut Tape (CT), and Digi-Reel® formats for prototyping or high-volume production. Contact PCX for reel quantities and kitting services.

Frequently Asked Questions

Q: What’s the difference between reflective and absorptive RF switches?
A: Reflective switches (like AS179-92LF) reflect unused port energy, while absorptive switches terminate unused ports. Reflective types offer simpler designs with lower current consumption.

Q: Can this switch handle 5GHz WLAN signals?
A: While specified up to 3GHz, the AS179-92LF may function at higher frequencies with degraded parameters. Verify performance at target frequencies using the datasheet.

Q: Is impedance matching required for this component?
A: The switch features 50Ω impedance – standard for RF systems. Ensure transmission lines maintain 50Ω characteristic impedance for optimal performance.

Q: What’s the typical switching speed?
A: Switching time isn’t specified in this datasheet. Contact PCX for evaluation board access to characterize dynamic performance.

Q: Does it require external DC-blocking capacitors?
A: Yes. External capacitors are needed at RF ports to block DC bias while passing RF signals. Refer to the application notes in the datasheet.

Q: Can I use this in battery-powered devices?
A: Absolutely. The 3V operation and low current consumption (typically 1μA) make it ideal for portable electronics. Thermal management isn’t required at rated power levels.

Note: Product images are representational. Refer to datasheets for exact dimensions and specifications.

Ready to Integrate?

Streamline your RF design with this high-performance switch – Order AS179-92LF from PCX today for same-day shipping and expert technical support!