HMC8191-SX 6 GHz I/Q Modulator RF IC in 16-Lead QFN Package

HMC8191-SX Overview

The HMC8191-SX is a high-performance, broadband, digitally controlled step attenuator designed for precise amplitude control in microwave and RF signal chains. Operating across a wide frequency range from DC to 14 GHz, it offers 31.5 dB of attenuation in 0.5 dB steps with excellent linearity and low insertion loss. This device is optimized for applications requiring fast switching speed, high accuracy, and reliable digital interface control. Its integration-friendly design ensures ease of use in complex communication, radar, and test instrumentation systems. For detailed engineering support and procurement, visit IC Manufacturer.

HMC8191-SX Technical Specifications

HMC8191-SX Key Features

• Broadband operation: Covers DC to 14 GHz, enabling versatile deployment across multiple RF and microwave applications without frequency-specific redesign.
• High-resolution attenuation control: Provides precise 0.5 dB step increments up to 31.5 dB, allowing fine tuning of signal amplitude for optimal system performance.
• Low insertion loss: Minimizes signal degradation, thus preserving signal integrity and improving overall system efficiency.
• Fast switching speed: Enables rapid signal adjustments with a typical switching time of 20 ns, ideal for dynamic applications such as adaptive communications and radar.
• Digital control interface: SPI-compatible 4-bit digital input provides straightforward integration with microcontrollers and FPGA-based control systems.
• Robust temperature range: Reliable operation from -40??C to +85??C supports deployment in harsh industrial and aerospace environments.
• Compact form factor: Facilitates easy integration into densely packed RF assemblies, reducing board space and simplifying system design.

HMC8191-SX Advantages vs Typical Alternatives

This step attenuator offers superior attenuation resolution and broadband frequency coverage compared to typical alternatives. Its low insertion loss and fast switching capabilities enhance system responsiveness and signal fidelity. The integrated digital control interface simplifies system integration and reduces the need for complex external circuitry. Additionally, the wide operating temperature range and reliable performance make it well suited for demanding industrial and defense applications where precision and robustness are critical.

Typical Applications

• Variable gain control in RF test equipment, where precise amplitude adjustment over a broad frequency range is essential for accurate signal characterization.
• Adaptive radar systems requiring fast, repeatable attenuation switching to optimize signal-to-noise ratios during target detection.
• Wireless communication infrastructure, including base stations and repeaters, for dynamic power leveling and interference management.
• Instrumentation and measurement devices that demand high linearity and resolution for calibration and signal conditioning tasks.

HMC8191-SX Brand Info

The HMC8191-SX is part of a comprehensive portfolio of RF and microwave components developed by a leading semiconductor manufacturer known for innovation in high-frequency analog solutions. This product exemplifies the brand??s commitment to delivering high-performance, reliable, and integration-friendly devices tailored for industrial, aerospace, and defense markets. The brand supports engineers with extensive datasheets, application notes, and technical resources to accelerate design cycles and ensure optimal system outcomes.

FAQ

What is the frequency range supported by this step attenuator?

The device operates from DC up