Analog Devices Inc. EV1HMC424ALH5

Overview

EV1HMC424ALH5 from Analog Devices is a 6-bit GaAs MMIC digital attenuator evaluation board supporting DC–13 GHz operation, with 0.5 dB LSB steps up to 31.5 dB total attenuation, ±0.4 dB typical step accuracy, and <3.5 dB insertion loss at 4 GHz. It serves as a reference platform for RF front-end calibration in military radar and test instrumentation.

For engineers reviewing the EV1HMC424ALH5 datasheet, EV1HMC424ALH5 pinout, EV1HMC424ALH5 application, or EV1HMC424ALH5 equivalent, this evaluation PCB enables rapid characterization of the HMC424ALH5 attenuator's RF performance, switching speed (55 ns tON/tOFF), bias sequencing, and SMT layout compatibility under real-world signal integrity constraints.

Technical Context

The EV1HMC424ALH5 is not a component but an evaluation PCB designed exclusively for the HMC424ALH5 6-bit GaAs MMIC digital attenuator IC. It implements controlled-impedance 50 Ω RF routing, direct ground-plane connection via multiple vias, and SMA connectors (J1–J2) for broadband signal injection and extraction.

Board-level design includes an 8-pin DC header (J3) for independent control voltage (V1–V6) and Vee (-5 V) supply, 0.01 µF bypass capacitors (C1), and Rogers 4350 substrate to preserve high-frequency return loss (>12 dB) and phase stability across DC–13 GHz - matching the IC's specified operating envelope.

Key Specifications

Availability

EV1HMC424ALH5 is available at Aetrix Electronics and suitable for telecom infrastructure validation, military radar front-end prototyping, and RF test instrumentation development requiring stable component supply and traceable evaluation hardware.

Supply support for EV1HMC424ALH5 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and RF ICs, serving precision instrumentation, communications, and defense markets since 1965.

The EV1HMC424ALH5 belongs to Analog Devices' RF & Microwave Evaluation Platform family, engineered to accelerate design-in of GaAs MMIC attenuators by providing validated RF layout, bias conditioning, and measurement-ready interfaces.

FAQ

What is the EV1HMC424ALH5 used for?

The EV1HMC424ALH5 is an evaluation PCB designed specifically for the HMC424ALH5 6-bit GaAs MMIC digital attenuator. It enables engineers to verify RF performance-including insertion loss, step accuracy, and switching speed-under real-world PCB conditions. The board supports full DC–13 GHz characterization and is intended for lab validation prior to integration into radar, test equipment, or satellite communication systems. EV1HMC424ALH5 does not function as a standalone component but as a calibrated reference platform for the HMC424ALH5 IC.

Does the EV1HMC424ALH5 include the HMC424ALH5 IC?

Yes, the EV1HMC424ALH5 evaluation PCB includes one mounted HMC424ALH5 IC (U1) as its core active device. The board is shipped fully assembled with SMA connectors (J1–J2), DC header (J3), and 0.01 µF bypass capacitors (C1). No additional assembly or component sourcing is required to begin RF evaluation of the HMC424ALH5 attenuator's 0.5 dB LSB behavior, ±0.4 dB step accuracy, or -5 V Vee bias operation.

What are the key RF layout features of the EV1HMC424ALH5?

The EV1HMC424ALH5 uses Rogers 4350 substrate to maintain consistent 50 Ω impedance on RF traces, minimizes ground inductance via direct soldering of package ground leads (pads 8/10/12) and the exposed paddle to a solid ground plane, and employs ≥8 thermal vias to ensure low-impedance grounding up to 13 GHz. These features directly support the HMC424ALH5's specified return loss (>12 dB) and insertion loss (<3.5 dB at 4 GHz), enabling accurate measurement without parasitic degradation.

Can the EV1HMC424ALH5 be used for automated test systems?

Yes, the EV1HMC424ALH5 is compatible with automated test setups via its standardized SMA RF ports (J1/J2) and 8-pin DC header (J3), which allow programmable control of all six attenuation bits and Vee bias. Its Rogers 4350 construction and verified 50 Ω routing ensure repeatable S-parameter measurements across frequency sweeps. Engineers use EV1HMC424ALH5 in ATE environments to validate HMC424ALH5 bit error vs. frequency, IIP3 compression, and switching timing without custom fixture development.

Is the EV1HMC424ALH5 RoHS-compliant and lead-free assembly ready?

Yes, the EV1HMC424ALH5 evaluation PCB is manufactured using lead-free assembly processes and complies with RoHS Directive 2011/65/EU. The HMC424ALH5 IC itself is qualified for lead-free reflow (per JEDEC J-STD-020), and the board's ceramic/Kovar package footprint and gold-plated pads (40–80 µin) support standard SMT reflow profiles. Analog Devices confirms full compatibility with both leaded and lead-free surface mount manufacturing techniques.