Analog Devices Inc. ADRF5714-EVALZ

Overview

ADRF5714-EVALZ from Analog Devices is an evaluation board designed to characterize the ADRF5714 1-bit silicon digital attenuator operating from 100 MHz to 30 GHz, supporting dual-supply (±3.3 V) or single-supply (3.3 V/VSS = GND) configurations, with 16 dB attenuation step, <1.3 dB insertion loss up to 30 GHz, and 110 ns RF amplitude settling time - used for millimeter-wave 5G infrastructure and test instrumentation validation.

For engineers reviewing the ADRF5714-EVALZ datasheet, ADRF5714-EVALZ pinout, ADRF5714-EVALZ application, or ADRF5714-EVALZ equivalent, this page provides verified layout guidance, RF interface schematics, thermal grounding recommendations, CPWG trace design rules, and measured performance data for rapid prototyping of high-frequency attenuator circuits in microwave radios and radar front-ends.

Technical Context

The ADRF5714-EVALZ implements a coplanar waveguide (CPWG) PCB stackup with 12-mil Rogers RO4003 dielectric, 16-mil signal trace width, and 6-mil ground clearance to maintain 50 Ω impedance at ATTIN/ATTOUT ports. It supports bidirectional RF operation and includes bypass capacitors (100 pF) on VDD/VSS lines per Analog Devices' recommended power delivery network.

Thermal management relies on dense via arrays under the exposed pad and around RF traces, with primary heat dissipation through the bottom-side LGA package (CC-12-6). The board enables verification of ADRF5714's RF amplitude settling (110 ns @ 0.1 dB), input linearity (P0.1dB = 33 dBm typ. in insertion loss state), and relative phase stability (≤45° up to 30 GHz).

Key Specifications

Availability

ADRF5714-EVALZ is available at Aetrix Electronics and suitable for 5G mmWave base station development, microwave radio transceiver calibration, and military ECM system testing requiring stable component supply and validated RF evaluation platforms.

Supply support for ADRF5714-EVALZ 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 precision instrumentation, communications, and defense markets since 1965.

The ADRF5714-EVALZ belongs to Analog Devices' RF & Microwave Evaluation Platform product line, engineered specifically to accelerate characterization and integration of broadband silicon attenuators into high-frequency signal chains.

FAQ

What is the purpose of the ADRF5714-EVALZ evaluation board?

The ADRF5714-EVALZ evaluation board is designed to facilitate rapid prototyping and performance validation of the ADRF5714 1-bit digital attenuator. It provides a fully laid-out, impedance-controlled RF path with proper grounding, bypassing, and thermal vias - enabling engineers to verify insertion loss, settling time, linearity, and phase response across 100 MHz to 30 GHz without custom PCB development. The ADRF5714-EVALZ directly supports both dual-supply (±3.3 V) and single-supply (3.3 V/VSS = GND) configurations as specified in the ADRF5714 datasheet Rev. A.

Does the ADRF5714-EVALZ support single-supply operation for the ADRF5714 device?

Yes, the ADRF5714-EVALZ supports single-supply operation by routing VSS to ground, allowing the ADRF5714 to operate with only a +3.3 V supply on VDD. However, users must account for degraded RF performance - including reduced P0.1dB (21 dBm vs. 33 dBm) and IP3 (37–42 dBm vs. 49–51 dBm) - as documented in Table 2 of the ADRF5714 datasheet Rev. A. The ADRF5714-EVALZ layout accommodates both configurations via jumper-selectable supply paths.

What RF PCB design rules are implemented on the ADRF5714-EVALZ?

The ADRF5714-EVALZ implements a coplanar waveguide (CPWG) structure with 16-mil trace width, 6-mil ground clearance, and 12-mil Rogers RO4003 dielectric to achieve 50 Ω characteristic impedance at mmWave frequencies. It includes dense thermal via arrays under the exposed pad and along RF traces, solder-mask-defined ground pads, and 100 pF bypass capacitors on VDD/VSS lines - all aligned with the layout guidelines in Figures 21–23 of the ADRF5714 datasheet Rev. A. These features ensure repeatable RF performance for the ADRF5714 device.

Can the ADRF5714-EVALZ be used for bidirectional RF signal paths?

Yes, the ADRF5714-EVALZ supports bidirectional RF operation because the underlying ADRF5714 device has symmetric ATTIN and ATTOUT ports with identical 50 Ω matching, power handling (30 dBm avg.), and insertion loss characteristics. The evaluation board's CPWG layout maintains equal trace geometry and grounding symmetry between both ports, enabling validation of transmit/receive path attenuation in T/R modules or full-duplex test setups - consistent with ADRF5714's bidirectional specification in the General Description section.

What thermal management features does the ADRF5714-EVALZ include?

The ADRF5714-EVALZ incorporates thermal vias densely placed under the exposed pad and surrounding RF traces to maximize heat transfer from the ADRF5714's CC-12-6 LGA package to internal and bottom-layer ground planes. This design aligns with the θJC = 50 °C/W thermal resistance specification and supports continuous operation up to +105°C case temperature, as verified in the Power Derating Curves (Figures 2–3) and Absolute Maximum Ratings (Table 3) of the ADRF5714 datasheet Rev. A. The ADRF5714-EVALZ enables reliable thermal validation of the ADRF5714 in high-power mmWave applications.