Analog Devices Inc. EV1HMC322ALP4

Overview

EV1HMC322ALP4 from Analog Devices is an evaluation board for the HMC322ALP4E GaAs MMIC SP8T non-reflective RF switch, supporting DC–8 GHz operation in 50 Ω systems with 2.5 dB typical insertion loss and >30 dB isolation at 6 GHz. It enables rapid prototyping of broadband RF signal routing in fiber optics and switched filter banks.

For engineers reviewing the EV1HMC322ALP4 datasheet, EV1HMC322ALP4 pinout, EV1HMC322ALP4 application, or EV1HMC322ALP4 equivalent, this page provides verified board-level specifications, layout guidance for RF impedance control, grounding requirements for the exposed paddle, and integration details for SMA-based test setups.

Technical Context

The EV1HMC322ALP4 implements a fully populated reference design for the HMC322ALP4E SP8T switch, featuring nine SMA connectors (J1–J9) for RFC and RF1–RF8 ports, plus five DC pins (J10–J14) for VEE and TTL control lines. All RF traces are 50 Ω microstrip on Rogers 4350 substrate.

Grounding follows strict RF best practices: the package's exposed metal paddle and all 24 ground leads (pins 1,3,5,7,12,14,16,18,21,23 + pin 20) must be soldered to the PCB ground plane. Capacitors C1–C9 (100 pF, 0402) provide DC blocking on each RF path.

Key Specifications

Availability

EV1HMC322ALP4 is available at Aetrix Electronics and suitable for RF test bench setup, 5G front-end development, and broadband filter bank characterization requiring stable component supply and traceable evaluation hardware.

Supply support for EV1HMC322ALP4 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, and defense markets since 1965.

The EV1HMC322ALP4 belongs to Analog Devices' RF evaluation platform family, designed specifically to accelerate validation of GaAs MMIC switches in real-world 50 Ω RF systems.

FAQ

What is the EV1HMC322ALP4 used for?

The EV1HMC322ALP4 is an evaluation PCB for the HMC322ALP4E SP8T RF switch. It enables engineers to validate RF path switching, measure insertion loss and isolation, and verify TTL control logic timing in DC–8 GHz applications. The EV1HMC322ALP4 includes SMA connectors, proper RF grounding, and DC bias access - eliminating custom PCB design for initial characterization of the HMC322ALP4E.

Does the EV1HMC322ALP4 require external power supplies?

Yes - the EV1HMC322ALP4 requires a -5 V DC supply for the HMC322ALP4E's VEE pin (J10) and three TTL-compatible control voltages (0 V / -5 V) applied to CTLA, CTLB, and CTLC (J11–J13). No onboard regulation or level-shifting is provided; external sources must meet ±10% tolerance per the HMC322ALP4E datasheet.

Can the EV1HMC322ALP4 be used with 75 Ω systems?

No - the EV1HMC322ALP4 is optimized for 50 Ω systems only. Its RF traces, SMA connectors, and matching networks are designed for 50 Ω characteristic impedance. Using it in 75 Ω environments will cause mismatch-induced reflections and degraded isolation/return loss, as confirmed by the HMC322ALP4E's specified 50 Ω system performance and Rogers 4350 stack-up calibration.

What is the role of pin 20 on the HMC322ALP4E when mounted on the EV1HMC322ALP4?

Pin 20 of the HMC322ALP4E is marked N/C (no connect) but must be soldered to the PCB ground plane on the EV1HMC322ALP4 to maximize off-state isolation. This is explicitly required in the HMC322ALP4E datasheet and implemented on the EV1HMC322ALP4 layout to suppress parasitic coupling between RF paths.

Is the EV1HMC322ALP4 RoHS-compliant and MSL-rated?

Yes - the EV1HMC322ALP4 uses RoHS-compliant components including the HMC322ALP4E (MSL3, peak reflow 260 °C), 100 pF 0402 capacitors, and SMA connectors. The board itself carries no MSL rating, but its assembly follows IPC-J-STD-020 guidelines for moisture-sensitive devices per the HMC322ALP4E's MSL3 classification.