Skyworks Solutions Inc. SKY66296-11-EVB

Overview

SKY66296-11-EVB from Skyworks is an evaluation board designed to demonstrate the performance of the SKY66296-11 5G NR front-end module (FEM) for n77/n78/n79 bands. It supports 3.3–4.2 GHz operation, delivers +29 dBm POUT at 28% PAE, and integrates a 5-bit digital step attenuator (DSA), low-noise amplifier (LNA) with bypass mode, and SPDT switch.

For engineers reviewing the SKY66296-11-EVB datasheet, SKY66296-11-EVB pinout, SKY66296-11-EVB application, or SKY66296-11-EVB equivalent, key considerations include RF input/output interface compatibility, SMA connector layout, DC bias sequencing requirements, and thermal management validation for 5G base station radio units and small cell active antenna systems.

Technical Context

The SKY66296-11-EVB implements a matched 50 Ω RF path from SMA IN to SMA OUT, with on-board bias tees enabling independent control of VDD_PA (3.0–4.5 V), VDD_LNA (2.7–5.5 V), and VDD_DSA (2.7–5.5 V). It includes test points for RF and DC signals, and supports external microcontroller-based DSA register programming via SPI interface.

Board-level features include calibrated RF power measurement capability using integrated directional coupler and detector diode, thermal vias under the SKY66296-11 FEM die pad, and jumper-selectable LNA bypass mode for receiver path optimization in TDD configurations.

Key Specifications

Availability

SKY66296-11-EVB is available at Aetrix Electronics and suitable for 5G small cell radios, active antenna system (AAS) development, and mmWave front-end characterization requiring stable component supply and validated reference design support.

Supply support for SKY66296-11-EVB 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

Skyworks Solutions, Inc. is a global semiconductor company specializing in analog and mixed-signal connectivity solutions for wireless infrastructure, mobile, automotive, and IoT applications.

The SKY66296-11-EVB belongs to Skyworks' 5G Front-End Evaluation Platform family, engineered to accelerate RF design validation and regulatory testing of high-efficiency, multi-band FEMs in sub-6 GHz base station and customer premises equipment.

FAQ

What is the primary function of the SKY66296-11-EVB?

The SKY66296-11-EVB is a dedicated evaluation board for the SKY66296-11 5G NR front-end module. It provides full RF signal path access, programmable DSA control, LNA bypass selection, and thermal monitoring to validate real-world performance of the SKY66296-11 in n77/n78/n79 band applications.

Does the SKY66296-11-EVB support SPI communication with external controllers?

Yes, the SKY66296-11-EVB supports SPI communication to configure the 5-bit digital step attenuator inside the SKY66296-11 FEM. The board exposes MOSI, MISO, SCLK, and CS pins on a 0.1"-spaced header, compatible with standard microcontroller GPIO interfaces and Skyworks' reference firmware.

Can the SKY66296-11-EVB be used for conducted EVM and ACLR measurements?

Yes, the SKY66296-11-EVB supports conducted EVM and ACLR measurements via its calibrated directional coupler and detector diode. When paired with a vector signal analyzer and Skyworks' recommended bias conditions, it enables accurate linearity and spectral purity validation of the SKY66296-11 under 5G NR FR1 modulation.

What power supply requirements does the SKY66296-11-EVB have?

The SKY66296-11-EVB requires three independent DC supplies: VDD_PA (3.0–4.5 V, up to 500 mA), VDD_LNA (2.7–5.5 V, up to 50 mA), and VDD_DSA (2.7–5.5 V, up to 10 mA). Each rail has dedicated test points and filtering to ensure clean biasing of the SKY66296-11 FEM subsystems.

Is thermal data provided for the SKY66296-11-EVB during continuous operation?

Yes, Skyworks provides thermal characterization data for the SKY66296-11-EVB operating at +29 dBm POUT. With ambient temperature at 25°C and no forced airflow, the SKY66296-11 die junction temperature remains below 85°C due to the board's 6× thermal vias and 2-layer copper pour beneath the FEM.