HMC345ALP3E Overview
The HMC345ALP3E is a high-performance, broadband monolithic voltage variable attenuator designed for precise RF signal control across a wide frequency range. Featuring a compact surface-mount package, this device offers reliable attenuation with low insertion loss and flat frequency response from 10 MHz to 6 GHz. Its linear-in-dB control voltage input ensures accurate gain control for applications requiring dynamic signal adjustment. The device is optimized for integration into complex RF systems, providing excellent repeatability and stability under varying environmental conditions. Sourcing specialists and engineers benefit from its robust design and ease of implementation. For more detailed product information, visit IC Manufacturer.
HMC345ALP3E Technical Specifications
| Parameter | Specification |
|---|---|
| Frequency Range | 10 MHz to 6 GHz |
| Attenuation Range | 0 to 31.5 dB |
| Control Voltage Range | 0 to 3.3 V (linear-in-dB) |
| Insertion Loss (Typical) | 3 dB at 2 GHz |
| Attenuation Accuracy | ??0.5 dB |
| Input Return Loss | ??15 dB |
| Output Return Loss | ??15 dB |
| Operating Temperature Range | -40??C to +85??C |
| Package Type | 3×3 mm SMT |
HMC345ALP3E Key Features
- Broadband Operation: Covers 10 MHz to 6 GHz, enabling versatile use in various RF systems from low VHF to microwave frequencies.
- Linear-in-dB Control Voltage: Allows precise and repeatable attenuation control, simplifying system design and improving signal integrity.
- Low Insertion Loss: Minimizes signal degradation, preserving system performance and enhancing overall efficiency.
- Compact SMT Package: Facilitates high-density PCB layouts and automated assembly processes, reducing manufacturing complexity.
- Stable Performance Across Temperature: Ensures consistent attenuation and return loss, critical for reliable operation in harsh industrial environments.
HMC345ALP3E Advantages vs Typical Alternatives
This device offers superior attenuation accuracy and lower insertion loss compared to typical voltage variable attenuators in its class. Its wide frequency coverage and stable linear-in-dB control voltage provide enhanced signal control, making it advantageous for precision RF applications. Additionally, the compact SMT form factor supports easy integration into modern, space-constrained systems, improving reliability and manufacturing efficiency.
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Typical Applications
- RF and microwave signal level control in communication systems, enabling dynamic gain adjustment to optimize link performance and reduce interference.
- Test and measurement equipment requiring precise attenuation across a broad frequency spectrum for accurate characterization.
- Automatic gain control (AGC) circuits in radar and electronic warfare systems, where fast and reliable signal attenuation is essential.
- Wireless infrastructure designs, including base stations and repeaters, demanding stable and repeatable attenuation to maintain signal quality.
HMC345ALP3E Brand Info
The HMC345ALP3E is part of a comprehensive portfolio of RF and microwave solutions from a leading semiconductor manufacturer known for innovation and quality. This product exemplifies the brand??s commitment to delivering high-performance, reliable components that meet stringent industrial and commercial requirements. Designed to support advanced communication and measurement systems, it leverages proven GaAs MMIC technology to ensure consistent performance and ease of use.
FAQ
What frequency range does this voltage variable attenuator cover?
The attenuator operates effectively from 10 MHz up to 6 GHz, covering a wide spectrum suitable for VHF, UHF, and microwave applications. This broad bandwidth supports diverse system designs without the need for multiple components.
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How is the attenuation controlled in the HMC345ALP3E?
The device uses a control voltage input that is linear-in-dB, meaning attenuation changes proportionally with voltage in decibel scale. This feature simplifies system calibration and ensures precise, repeatable gain control over the entire attenuation range.
What are the typical insertion loss and return loss values?
Typical insertion loss is about 3 dB at 2





