NXP Semiconductors AFSC5G37D37-EVB

Overview

AFSC5G37D37-EVB from NXP Semiconductors is an evaluation board for the AFSC5G37D37 3600–3800 MHz Doherty power amplifier module, designed to accelerate RF front-end development for LTE and 5G wireless infrastructure. It supports 5.7 W average output power at 29 Vdc, delivers 29.7 dB gain and –33.6 dBc ACPR at 3700 MHz, and targets outdoor small cells and remote radio heads.

For engineers reviewing the AFSC5G37D37-EVB datasheet, AFSC5G37D37-EVB pinout, AFSC5G37D37-EVB application, or AFSC5G37D37-EVB equivalent, this board enables rapid validation of bias sequencing, thermal management, analog/digital linearization interface, and wideband ruggedness under real-world 20 MHz LTE signals with 8 dB PAR.

Technical Context

The AFSC5G37D37-EVB implements NXP's reference circuit layout using Rogers RO4350B PCB (ε_r = 3.67), including 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 characterization of the AFSC5G37D37's Doherty architecture across TDD/FDD LTE bands.

Board-level design incorporates thermal vias beneath the 10 mm × 6 mm module's exposed ground paddle, DC-blocking capacitors on both RF ports, and dedicated test points for VGP1/VGP2, VGC1/VGC2, VDC1/VDC2, and RFin/RFout-enabling precise quiescent current tuning and AM/PM distortion measurement at P3dB (44.7 dBm).

Key Specifications

Availability

AFSC5G37D37-EVB is available at Aetrix Electronics and suitable for wireless infrastructure prototyping, 5G small cell RF validation, and LTE base station transceiver development requiring stable component supply and traceable reference hardware.

Supply support for AFSC5G37D37-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.

The Airfast® product line delivers high-efficiency, thermally robust LDMOS-based power amplifier modules optimized for macro and small-cell wireless infrastructure, supporting LTE, 5G NR, and massive MIMO deployments.

FAQ

What is the primary function of the AFSC5G37D37-EVB?

The AFSC5G37D37-EVB is an evaluation board specifically designed to demonstrate and validate the AFSC5G37D37 Doherty power amplifier module. It provides a fully implemented NXP reference circuit-including Rogers RO4350B PCB, matched RF interfaces, calibrated bias networks, and thermal vias-to enable accurate measurement of gain, PAE, ACPR, and wideband ruggedness under real-world LTE/5G signal conditions.

Does the AFSC5G37D37-EVB support both TDD and FDD LTE operation?

Yes, the AFSC5G37D37-EVB supports both TDD and FDD LTE operation because it hosts the AFSC5G37D37 module, which is explicitly designed for both architectures per NXP's technical data. The board's 50 Ω matched input/output, DC blocking, and bias flexibility allow seamless integration into either duplexing scheme without hardware modification.

Can the AFSC5G37D37-EVB be used to evaluate digital pre-distortion (DPD)?

Yes, the AFSC5G37D37-EVB is suitable for DPD evaluation. Its low-noise bias rails, accessible VGP/VGC nodes, and clean 50 Ω RF paths support high-fidelity signal capture for feedback loop calibration. The board's documented IMD performance (–23.9 dBc IM3) and PAR handling (7.7 dB at 0.01% CCDF) provide a validated baseline for DPD algorithm development targeting the AFSC5G37D37.

What is the maximum continuous output power the AFSC5G37D37-EVB can deliver?

The AFSC5G37D37-EVB supports the AFSC5G37D37 module's rated 5.7 W average output power at 29 Vdc under 20 MHz LTE modulation (8 dB PAR). At P3dB, the module delivers 44.7 dBm (29.7 W) CW output-verified on the board using NXP's reference circuit and thermal management structure.

Is the AFSC5G37D37-EVB RoHS compliant and MSL-rated?

Yes, the AFSC5G37D37-EVB is RoHS compliant and carries Moisture Sensitivity Level 3 per J-STD-020, with a peak reflow temperature rating of 260°C. This matches the AFSC5G37D37 module's qualification and ensures compatibility with standard surface-mount assembly processes in production environments.