Analog Devices Inc. EV1HMC8073LP3D

Overview

EV1HMC8073LP3D from Analog Devices is an evaluation board for the HMC8073 - a 0.6 GHz to 3.0 GHz, 6-bit silicon digital step attenuator with 0.5 dB LSB resolution, 31.5 dB attenuation range, bidirectional RF ports (RFIN/RFOUT), and serial SPI control. It supports high-linearity operation (P1dB = 31 dBm, IP3 = 52 dBm) and is used in microwave radios and cellular infrastructure test setups.

For engineers reviewing the EV1HMC8073LP3D datasheet, EV1HMC8073LP3D pinout, EV1HMC8073LP3D application, or EV1HMC8073LP3D equivalent, this page delivers verified layout guidance, thermal design notes, CPWG transmission line specifications (18 mil width, 13 mil spacing), 4-layer PCB construction details (RO4350 top dielectric, FR-4 core), SMA interface routing, and decoupling capacitor placement for stable RF evaluation.

Technical Context

The EV1HMC8073LP3D implements a 4-layer evaluation PCB optimized for the HMC8073 LFCSP package (3 mm × 3 mm, CP-16-38). Its top layer routes all RF and DC traces using coplanar waveguide (CPWG) geometry - 18 mil signal width, 13 mil gap, 10 mil RO4350 dielectric - achieving precise 50 Ω impedance matching without external tuning.

Inner and bottom layers serve as solid ground planes; dense via arrays surround RF lines and under the exposed pad to ensure low-inductance grounding and efficient thermal dissipation. The board integrates SMA connectors (J1/J2), a 2×6 header (J5) for digital control, test points (TP1–TP3), and 470 pF decoupling (C2), enabling full characterization of insertion loss, state error, phase shift, and power handling up to 30 dBm.

Key Specifications

Availability

EV1HMC8073LP3D is available at Aetrix Electronics and suitable for microwave radio development, cellular infrastructure prototyping, and RF test equipment validation requiring stable component supply, repeatable measurement accuracy, and thermal-reliable evaluation platforms.

Supply support for EV1HMC8073LP3D 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 EV1HMC8073LP3D belongs to Analog Devices' RF evaluation platform product line, designed specifically to accelerate characterization and integration of their high-frequency digital attenuators - emphasizing low-phase-error RF performance, thermal robustness, and production-ready layout practices.

FAQ

What is the primary function of the EV1HMC8073LP3D?

The EV1HMC8073LP3D is an evaluation board for the HMC8073 digital step attenuator. It provides a fully laid-out, RF-optimized 4-layer PCB with SMA interfaces, CPWG transmission lines, proper grounding, and digital control headers - enabling immediate lab validation of attenuation accuracy, insertion loss, phase response, and high-power handling across 0.6–3.0 GHz. The EV1HMC8073LP3D itself is not an IC but a hardware reference platform.

Does the EV1HMC8073LP3D include the HMC8073 IC?

Yes, the EV1HMC8073LP3D includes one mounted HMC8073 digital step attenuator (in 16-lead 3 mm × 3 mm LFCSP package) as U1 on the board. The evaluation PCB is pre-populated per the Bill of Materials in the datasheet, including SMA connectors (J1/J2), 2×6 header (J5), test points (TP1–TP3), and decoupling capacitor C2 - ready for immediate RF signal injection and digital control.

What are the critical PCB material specifications for the EV1HMC8073LP3D?

The EV1HMC8073LP3D uses a 4-layer construction: top layer dielectric is 10 mil RO4350 (low-loss, stable ε_r ≈ 3.48); inner and bottom layers use FR-4 for mechanical rigidity and cost-effective thickness control (~62 mil total). Copper thickness is 0.7 mil per layer. This hybrid stack ensures RF integrity at microwave frequencies while maintaining manufacturability and thermal reliability for the HMC8073's exposed-pad package.

How is RF impedance controlled on the EV1HMC8073LP3D?

RF impedance is controlled via coplanar waveguide (CPWG) geometry on the top copper layer: 18 mil signal trace width, 13 mil gap to ground, over 10 mil RO4350 dielectric - yielding a verified 50 Ω characteristic impedance. Inner and bottom layers are solid ground planes, and numerous vias surround the RF path and under the HMC8073's exposed pad to minimize ground inductance and maintain return-path continuity - critical for accurate S-parameter measurement of the EV1HMC8073LP3D.

Can the EV1HMC8073LP3D be used for production-level testing?

Yes, the EV1HMC8073LP3D is designed for both R&D validation and production test environments. Its layout follows RF best practices: calibrated thru-line for de-embedding, dense via fencing, optimized CPWG routing, and robust decoupling. It supports full characterization of the HMC8073's key specs - including 0.5 dB step accuracy, ±0.4 dB step error, <4° phase shift at 1 GHz, and 31 dBm P1dB - making it suitable for incoming inspection, system integration, and automated test fixture development using the EV1HMC8073LP3D.