Analog Devices Inc. EVAL01-HMC1018LP4E

Overview

EVAL01-HMC1018LP4E from Hittite Microwave Corporation is an evaluation PCB designed to validate the HMC1018LP4E - a GaAs MMIC 5-bit digital attenuator operating from 0.1 to 30 GHz, with 1.0 dB LSB steps (0–31 dB range), ±0.4 dB typical step error, +43 dBm input IP3, and TTL/CMOS-compatible serial control. It supports rapid attenuation setting via asynchronous mode and targets RF front-end calibration in microwave test systems.

For engineers reviewing the EVAL01-HMC1018LP4E datasheet, EVAL01-HMC1018LP4E pinout, EVAL01-HMC1018LP4E application, or EVAL01-HMC1018LP4E equivalent, this board enables full characterization of the HMC1018LP4E's broadband attenuation accuracy, switching speed (90 ns t_ON), power-up state selection, and cascaded serial interface behavior under real RF conditions.

Technical Context

The EVAL01-HMC1018LP4E implements a dedicated RF evaluation platform for the HMC1018LP4E IC, featuring 2.9 mm PC-mount RF connectors (J1, J2) for 50 Ω broadband signal path integrity from 0.1–30 GHz, DC bias headers (J3–J6), and optimized Rogers 4350B substrate to preserve high-frequency return loss (>12 dB) and insertion loss stability (<7.0 dB up to 30 GHz). Layout adheres to RF design best practices including ground-via stitching and direct package paddle grounding.

It integrates discrete decoupling (C1–C6: 100 pF and 1000 pF, 0402) for stable Vdd (+5 V), Vdd1 (+5 V), and Vss (−5 V) supply rails, enabling accurate measurement of the HMC1018LP4E's 2.5–6.5 mA Idd1 and −3.0 to −7.0 mA Iss across temperature (−40 °C to +85 °C). The board supports both serial (SERIN/CLK/LE) and asynchronous (ASM1/ASM2) control modes without modification.

Key Specifications

Availability

EVAL01-HMC1018LP4E is available at Aetrix Electronics and suitable for microwave radio development, radar front-end prototyping, and fiber-optic transceiver calibration requiring stable component supply and traceable RF evaluation hardware.

Supply support for EVAL01-HMC1018LP4E 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 RF, microwave, and millimeter-wave ICs, with emphasis on GaAs MMIC solutions for defense, aerospace, and communications infrastructure.

The EVAL01-HMC1018LP4E belongs to Hittite's evaluation board product line, engineered specifically to accelerate design-in and performance validation of their broadband digital attenuators - targeting applications demanding precise, wideband RF gain control and fast settling.

FAQ

What is the primary purpose of the EVAL01-HMC1018LP4E evaluation board?

The EVAL01-HMC1018LP4E evaluation board is a dedicated test platform for the HMC1018LP4E 5-bit GaAs digital attenuator. It enables engineers to verify key RF parameters - including insertion loss, attenuation accuracy (±0.4 dB typical), input IP3 (+43 dBm), and switching speed (90 ns) - across its full 0.1–30 GHz bandwidth using calibrated 2.9 mm RF connectors and Rogers 4350B substrate.

Does the EVAL01-HMC1018LP4E support both serial and asynchronous control modes of the HMC1018LP4E?

Yes, the EVAL01-HMC1018LP4E supports both control interfaces. Its layout exposes SERIN, CLK, LE, ASM1, ASM2, PUP, and S/A pins with appropriate pull-up/down options, allowing full validation of the HMC1018LP4E's 3-wire SPI-compatible serial mode and its four-state asynchronous mode - including latched and direct configurations per the device truth tables.

What RF connector type is used on the EVAL01-HMC1018LP4E, and why is it selected?

The EVAL01-HMC1018LP4E uses 2.9 mm PC-mount RF connectors (J1 and J2). This connector type is selected for its guaranteed performance up to 40 GHz, low VSWR (<1.25:1), and mechanical repeatability - ensuring minimal measurement uncertainty when characterizing the HMC1018LP4E's 0.1–30 GHz response, especially for return loss (>12 dB) and phase stability validation.

How is DC biasing implemented on the EVAL01-HMC1018LP4E for the HMC1018LP4E IC?

The EVAL01-HMC1018LP4E provides isolated DC bias paths via J3 (Vdd), J4 (Vdd1), J6 (Vss), and J5 (2 mm header for logic/control voltages). Each rail includes dedicated 0402 decoupling capacitors (C1–C6) to suppress noise, supporting the HMC1018LP4E's specified operating conditions: Vdd = +5 V, Vdd1 = +5 V, Vss = −5 V, and current draw of 2.5–6.5 mA (Idd1) and −3.0 to −7.0 mA (Iss).

Is the EVAL01-HMC1018LP4E compatible with standard RF test equipment such as VNAs and signal analyzers?

Yes, the EVAL01-HMC1018LP4E is fully compatible with industry-standard vector network analyzers (VNAs) and signal analyzers. Its 2.9 mm female RF connectors mate directly with common VNA test ports, and its Rogers 4350B substrate with controlled-impedance 50 Ω traces ensures accurate S-parameter measurement - enabling direct extraction of S21 (attenuation), S11/S22 (return loss), and group delay for the HMC1018LP4E.