Analog Devices Inc. EV1HMC345ALP3

Overview

EV1HMC345ALP3 from Analog Devices is an evaluation PCB designed for the HMC345ALP3E GaAs MMIC SP4T non-reflective switch, supporting DC–8 GHz operation with 2.0 dB typical insertion loss and 35 dB isolation at 6 GHz in 50 Ω systems. It enables rapid prototyping of RF signal routing in broadband wireless and fiber-optic front-ends.

For engineers reviewing the EV1HMC345ALP3 datasheet, EV1HMC345ALP3 pinout, EV1HMC345ALP3 application, or EV1HMC345ALP3 equivalent, this page delivers verified board-level specifications, layout guidance, supply-chain readiness, and integration notes specific to the HMC345ALP3E-based evaluation platform.

Technical Context

The EV1HMC345ALP3 is a dedicated evaluation PCB implementing the HMC345ALP3E SP4T switch in a Rogers 4350 substrate with controlled 50 Ω impedance traces, SMA connectors (J1–J5), and discrete DC blocking capacitors (C1–C6) optimized for RF port coupling. It supports +5 V bias and TTL-compatible control inputs (CTLA/CTLB).

Board-level design includes direct grounding of all package ground leads and the exposed metal paddle to the RF ground plane, per Hittite/Analog Devices' RF layout recommendations. The 1.29" × 1.55" form factor aligns with standard lab test setups and modular RF subsystem integration.

Key Specifications

Availability

EV1HMC345ALP3 is available at Aetrix Electronics and suitable for RF front-end validation, switched filter bank characterization, and broadband transceiver path testing requiring stable component supply and traceable evaluation hardware.

Supply support for EV1HMC345ALP3 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 communications, industrial, automotive, and instrumentation markets with precision signal processing solutions.

The EV1HMC345ALP3 belongs to Analog Devices' Hittite Microwave evaluation board family, engineered to accelerate development of GaAs MMIC-based RF switching solutions for DC–8 GHz infrastructure and test equipment.

FAQ

What is the purpose of the EV1HMC345ALP3 evaluation board?

The EV1HMC345ALP3 evaluation board is a ready-to-use RF test platform for the HMC345ALP3E SP4T switch. It provides SMA-connected RF paths, proper DC biasing, and grounded layout per Analog Devices' RF design guidelines-enabling immediate measurement of insertion loss, isolation, and switching speed without custom PCB development. EV1HMC345ALP3 validates real-world performance of the HMC345ALP3E under 50 Ω conditions.

Does the EV1HMC345ALP3 require external power supplies or logic drivers?

Yes. The EV1HMC345ALP3 requires a +5 V DC supply (applied via J8) for the HMC345ALP3E's VDD pin and two TTL-compatible control signals (0/+5 V) applied via J9 (CTLA) and J10 (CTLB). No onboard voltage regulation or level-shifting is provided-external sources must meet HMC345ALP3E's ±10% VDD tolerance and 50 µA max input current specs. EV1HMC345ALP3 relies on user-supplied clean, low-noise bias and logic.

What RF connector type and impedance does the EV1HMC345ALP3 use?

The EV1HMC345ALP3 uses five edge-mount SMA connectors (J1–J5): one for the common RFC port and one each for RF1, RF2, RF3, and RF4. All RF traces are impedance-controlled to 50 Ω using Rogers RO4350B substrate, ensuring minimal mismatch across DC–8 GHz. Connector orientation and pad layout follow Analog Devices' recommended land pattern for repeatable S-parameter measurements. EV1HMC345ALP3 is not compatible with 75 Ω systems without external matching.

Can the EV1HMC345ALP3 be used for 75 Ω applications such as CATV or broadcast?

No-the EV1HMC345ALP3 is designed exclusively for 50 Ω RF systems. Its transmission lines, SMA connectors, and internal matching networks are optimized for 50 Ω characteristic impedance. While the underlying HMC345ALP3E switch can operate in 75 Ω systems per its datasheet, the EV1HMC345ALP3 board lacks the required impedance transformation or port re-matching. Using it in 75 Ω environments will cause measurable return loss degradation and inaccurate S-parameter data. EV1HMC345ALP3 is not rated for CATV or broadcast deployment.

Is thermal management required when operating the EV1HMC345ALP3 at maximum RF input power?

Yes. At maximum specified input power (+24 dBm), the HMC345ALP3E dissipates heat through its exposed paddle and leads. The EV1HMC345ALP3 PCB provides no heatsinking beyond standard FR4-like thermal conduction via ground vias. For continuous high-power operation (> +20 dBm), users must add external thermal interface material and/or forced airflow. Thermal resistance values (154 °C/W for insertion path, 228 °C/W for terminated path) apply directly to EV1HMC345ALP3's layout-exceeding 85 °C case temperature risks parametric drift or reliability loss. EV1HMC345ALP3 is intended for lab evaluation, not sustained high-power deployment.