AA105-86LF

Attenuators Overview

The AA105-86LF is a GaAs-based digital step attenuator manufactured by Skyworks Solutions Inc. It features a 4-bit architecture providing 15 dB of attenuation with 1 dB resolution across a frequency range of 500 MHz to 3 GHz. The device operates at a 50 Ohm impedance and utilizes a 10-TFSOP or 10-MSOP package measuring 3.00 mm in width. Control is managed via four individual positive bit control voltages, enabling precise signal level adjustment for wireless infrastructure applications.

Attenuators Feature Summary

• Four-bit digital control architecture allowing precise attenuation steps
• GaAs technology optimized for high-frequency performance up to 3 GHz
• Positive logic control inputs for simplified interface integration

Attenuators Applications

• Wireless infrastructure systems
• Test and measurement equipment
• RF signal conditioning circuits

Attenuators Procurement Notes

Verify the specific package variant required, as the part is available in both 10-TFSOP and 10-MSOP configurations. Confirm RoHS compliance status and check for any recent packaging changes or site transfers documented in Product Change Notices. Ensure control voltage levels match system requirements before procurement.

Attenuators Selection Notes

Select this component when a compact, low-loss digital attenuator is needed for frequencies between 500 MHz and 3 GHz. The 4-bit resolution provides sufficient granularity for most RF power control applications. Consider the GaAs construction for its suitability in high-frequency environments compared to silicon alternatives.

Attenuators Part Context

This component belongs to Skyworks' portfolio of GaAs integrated circuit attenuators. It is designed for general-purpose RF applications requiring reliable signal attenuation. The 4-bit design offers a balance between control complexity and attenuation precision, making it suitable for various wireless communication standards.

Attenuators Replacement Considerations

Check for direct pin-compatible substitutes within the same family. Verify that alternative parts maintain the same 500 MHz to 3 GHz frequency range and 15 dB total attenuation capability. Ensure control logic polarity matches if replacing with non-Skyworks components.