AA101-80LF

Attenuators Overview

The AA101-80LF is a GaAs-based 5-bit digital attenuator IC manufactured by Skyworks Solutions. It operates within a frequency range of 0.05 GHz to 2.5 GHz and provides a total attenuation range of 31 dB with 1 dB step resolution. The device features positive control logic and maintains a typical attenuation accuracy of ±0.5 dB. Designed for surface mount applications, it supports supply voltages up to 5.5 V and functions reliably across an operating temperature range of -40°C to +85°C.

Attenuators Feature Summary

• Five-bit digital control architecture enabling precise attenuation adjustment
• Positive logic interface for simplified digital control integration
• Broadband operational capability spanning low-frequency to microwave bands

Attenuators Applications

• RF signal path gain control in wireless communication systems
• Automatic gain control (AGC) loops in receiver front-ends
• Beamforming networks in phased array antenna systems

Attenuators Procurement Notes

Verify the specific datasheet revision and package marking codes against the manufacturer's official documentation prior to procurement. Ensure that the ordering suffix matches the required tape-and-reel or cut-tape configuration. Confirm RoHS compliance status and lead-free solderability requirements align with assembly specifications. Cross-reference the part number with authorized distributors to ensure authenticity and traceability.

Attenuators Selection Notes

Select this component when a broadband digital attenuator with positive control logic is required for frequencies up to 2.5 GHz. Consider the 1 dB step resolution and 31 dB maximum attenuation as primary design constraints. Evaluate the GaAs technology benefits regarding linearity and power handling compared to silicon alternatives. Ensure the control voltage levels are compatible with the system's digital logic family.

Attenuators Part Context

The AA101-80LF belongs to Skyworks' portfolio of GaAs MMIC attenuators designed for high-performance RF applications. It complements other fixed and variable attenuator solutions by offering digitally programmable attenuation. This series is engineered to meet the stringent requirements of modern wireless infrastructure and test equipment.

Attenuators Replacement Considerations

Public confirmed substitute part numbers: None.