The AA117-85 is a GaAs MMIC Voltage Variable Absorptive Attenuator manufactured by Skyworks Solutions Inc. This attenuator is designed for applications requiring precise signal level control over a broad frequency range. It is particularly well-suited for use in communications and radar systems.

Applications

• Automatic Gain Control (AGC) Circuits
• Radar Systems
• Communication Systems
• Test and Measurement Equipment
• Electronic Warfare (EW) Systems

Features

• Broadband Frequency Range
• Low Insertion Loss
• High Attenuation Range
• Voltage Variable Control
• GaAs MMIC Technology

Benefits

• Precise Signal Control: Allows for fine-tuning of signal levels in sensitive applications, ensuring optimal performance.
• Improved System Performance: Low insertion loss minimizes signal degradation, maintaining signal integrity.
• Wide Dynamic Range: High attenuation range provides flexibility in various operating conditions.
• Simplified Circuit Design: Voltage variable control simplifies implementation in AGC and other control loops.
• Reliable Operation: GaAs MMIC technology ensures consistent and dependable performance.

Technical Specifications

The AA117-85 operates over a wide frequency range, typically from DC to several GHz. The insertion loss is typically low, and the attenuation range can exceed 30 dB, depending on the control voltage. It requires a single positive control voltage. The device is packaged in a small outline package suitable for surface mount assembly. Operating temperature ranges from -40°C to +85°C.

This attenuator is frequently employed in receiver circuits to prevent saturation and maintain optimal signal-to-noise ratio. Its broadband performance and high attenuation range make it a valuable component in various electronic systems requiring precise signal control. The AA117-85 provides a reliable and effective solution for attenuating RF signals.