NXP Semiconductors AFSC5G26D37-EVB

Overview

AFSC5G26D37-EVB from NXP Semiconductors is an evaluation board for the AFSC5G26D37 2.5–2.7 GHz Doherty power amplifier module, designed to accelerate RF front-end development for LTE and 5G wireless infrastructure. It supports 5 W average output power at 28 Vdc, delivers 40% PAE and –27.9 dBc ACPR at 2600 MHz with 1×20 MHz LTE input (8 dB PAR), and targets massive MIMO, outdoor small cells, and remote radio heads.

For engineers reviewing the AFSC5G26D37-EVB datasheet, AFSC5G26D37-EVB pinout, AFSC5G26D37-EVB application, or AFSC5G26D37-EVB equivalent, this board enables rapid validation of bias sequencing, thermal management, linearization interface compatibility, and wideband ruggedness under real-world modulated signal conditions.

Technical Context

The AFSC5G26D37-EVB implements NXP's reference circuit layout on Rogers RO4350B PCB (ε_r = 3.67, 0.020″ thickness), featuring matched 50 Ω RFin/RFout paths, dual-stage gate bias networks with 2.2 kΩ feed resistors, and ferrite-bead decoupling (BLM15PD300SN1). It supports full functional testing per NXP ATE fixture specifications including two-tone CW and 1×20 MHz LTE modulation.

Board-level design incorporates thermal vias beneath the 10 mm × 6 mm AFSC5G26D37 module's exposed ground paddle, enabling stable operation up to 125 °C case temperature. The layout includes provisioned test points for all DC supply rails (VDC1/VDC2), gate bias voltages (VGC1/VGC2/VGP1/VGP2), and drain supplies (VDP1/VDP2), aligned with NXP AN12071 biasing methodology.

Key Specifications

Availability

AFSC5G26D37-EVB is available at Aetrix Electronics and suitable for wireless infrastructure prototyping, 5G base station RF front-end validation, and LTE-Advanced small cell development requiring stable component supply and traceable reference designs.

Supply support for AFSC5G26D37-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

NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and communications markets, with deep expertise in RF power amplification and wireless infrastructure.

The Airfast® product line - including AFSC5G26D37-EVB - is engineered specifically for high-efficiency, thermally robust, and linearized RF power amplification in macro and small-cell base stations operating across 2.5–2.7 GHz bands.

FAQ

What is the primary purpose of the AFSC5G26D37-EVB evaluation board?

The AFSC5G26D37-EVB evaluation board is designed to validate the performance of the AFSC5G26D37 Doherty power amplifier module in real-world LTE and 5G wireless infrastructure applications. It provides a fully implemented reference circuit per NXP's datasheet, enabling engineers to verify gain, PAE, ACPR, and ruggedness under modulated signals without custom PCB development. The board supports both analog and digital pre-distortion system integration.

Does AFSC5G26D37-EVB support both TDD and FDD LTE systems?

Yes, AFSC5G26D37-EVB supports both TDD and FDD LTE systems because it hosts the AFSC5G26D37 module, which is explicitly designed by NXP for operation across 2496–2690 MHz in both duplex modes. The board's 50 Ω matched RF path, calibrated bias network, and thermal design maintain specified performance (e.g., 39.9% PAE, –27.9 dBc ACPR at 2600 MHz) regardless of duplex scheme.

What RF connectors are used on the AFSC5G26D37-EVB board?

The AFSC5G26D37-EVB uses standard SMA female connectors for both RFin and RFout interfaces. These connectors provide reliable 50 Ω impedance matching across the 2496–2690 MHz operating band and enable direct connection to lab equipment such as vector signal generators and spectrum analyzers during characterization of the AFSC5G26D37 module.

Can AFSC5G26D37-EVB be used to evaluate wideband ruggedness per NXP's specification?

Yes, AFSC5G26D37-EVB is configured to meet NXP's wideband ruggedness test condition: additive white Gaussian noise (AWGN) with 10 dB PAR, 400 MHz ISBW at 2600 MHz, 13 W avg. modulated output power, and 6 dB input overdrive. The board's reference layout, decoupling network (including BLM15PD300SN1 ferrite beads), and thermal structure ensure no device degradation occurs during this stress test.

Is the AFSC5G26D37-EVB compatible with NXP's AN12071 Doherty biasing methodology?

Yes, AFSC5G26D37-EVB implements the exact gate bias architecture described in NXP Application Note AN12071, including 2.2 kΩ feed resistors for quiescent current thermal tracking and separate VGC/VGP rails for carrier and peaking stage control. This ensures accurate replication of production-bias behavior and enables correlation between bench measurements and final system performance.