Analog Devices Inc. EVAL01-HMC1056LP4B

Overview

EVAL01-HMC1056LP4B from Hittite Microwave Corporation is an evaluation PCB designed specifically for the HMC1056LP4BE GaAs MMIC I/Q mixer, supporting 8–12 GHz RF operation, 100 MHz LSB IF output, and image rejection up to 25 dBc. It enables rapid prototyping of image-reject downconverters and single-sideband upconverters in point-to-point radio and EW systems.

For engineers reviewing the EVAL01-HMC1056LP4B datasheet, EVAL01-HMC1056LP4B pinout, EVAL01-HMC1056LP4B application, or EVAL01-HMC1056LP4B equivalent, this board provides validated RF layout, SMA interface routing, Rogers 4350 substrate, and direct-mount compatibility with the 20-lead 4×4 mm QFN package of the HMC1056LP4BE mixer IC - critical for phase-matched I/Q signal integrity and thermal management.

Technical Context

The EVAL01-HMC1056LP4B implements a fully populated reference design for the HMC1056LP4BE, featuring matched 50 Ω RF/LO/IF trace routing, dedicated ground vias beneath the exposed paddle, and SMA connectors (J1–J4) positioned for minimal stub length. All signal paths adhere to controlled-impedance RF layout rules per Hittite's recommended practices.

It integrates the HMC1056LP4BE in its native 20-lead leadless Pb-free SMT package (4×4 mm), with all non-connected pins (1, 5–8, 10–12, 16, 18–20) externally grounded per datasheet guidance. The board uses Rogers 4350 dielectric (ε_r = 3.66) for stable high-frequency performance and low loss at Ku-band.

Key Specifications

Availability

EVAL01-HMC1056LP4B is available at Aetrix Electronics and suitable for Ku-band radio development, EW system prototyping, and satellite communications transceiver validation requiring stable component supply and repeatable RF evaluation platforms.

Supply support for EVAL01-HMC1056LP4B 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

Hittite Microwave Corporation (acquired by Analog Devices in 2014) specialized in high-performance RFICs and microwave components for defense, aerospace, and wireless infrastructure applications.

The EVAL01-HMC1056LP4B belongs to Hittite's evaluation board product line, engineered to accelerate design-in of their GaAs MMIC mixers by providing production-ready RF layout, thermal management, and interface compliance - specifically for I/Q architectures demanding amplitude/phase balance and image suppression.

FAQ

What is the primary function of the EVAL01-HMC1056LP4B evaluation board?

The EVAL01-HMC1056LP4B is a dedicated evaluation platform for the HMC1056LP4BE GaAs MMIC I/Q mixer. It provides a fully routed, impedance-controlled PCB with SMA connectors, optimized grounding, and Rogers 4350 substrate to validate image-reject downconversion and single-sideband upconversion performance across 8–12 GHz - enabling rapid RF system characterization without custom layout.

Does the EVAL01-HMC1056LP4B include the HMC1056LP4BE IC?

Yes, the EVAL01-HMC1056LP4B includes one mounted and soldered HMC1056LP4BE IC as U1. This GaAs MMIC I/Q mixer is pre-installed in its 20-lead 4×4 mm leadless package, with all required DC blocking and biasing implemented per Hittite's recommended application circuit.

What RF substrate material is used on the EVAL01-HMC1056LP4B?

The EVAL01-HMC1056LP4B uses Rogers RO4350B laminate (ε_r = 3.66, tan δ = 0.0037), selected for stable dielectric properties, low insertion loss, and consistent 50 Ω impedance control at Ku-band frequencies - directly supporting the HMC1056LP4BE's 8–12 GHz operation and phase-sensitive I/Q performance.

How are the ground connections implemented on the EVAL01-HMC1056LP4B?

The EVAL01-HMC1056LP4B implements RF grounding per Hittite's specification: pins 2, 4, 13, and 15 plus the exposed ground paddle are connected to the top-layer ground plane via multiple thermal vias, which then tie to a solid bottom-layer ground plane using ≥12 evenly distributed vias - ensuring low-inductance return paths and thermal dissipation matching the HMC1056LP4BE's 112 °C/W channel-to-paddle rating.

Can the EVAL01-HMC1056LP4B be used for both downconversion and upconversion?

Yes, the EVAL01-HMC1056LP4B supports both modes: as a downconverter (RF→IF) with external IF 90° hybrid for image rejection, and as an upconverter (IF→RF) with external RF 90° hybrid for sideband suppression. Its symmetric SMA interfaces (J1–J4) and unpopulated hybrid mounting locations allow flexible reconfiguration per HMC1056LP4BE's dual-mode architecture.