NXP Semiconductors AFSC5G35D35-EVB

Overview

AFSC5G35D35-EVB from NXP Semiconductors is an evaluation board for the AFSC5G35D35 3400–3600 MHz Doherty power amplifier module, designed to accelerate RF front-end development for LTE and 5G wireless infrastructure. It supports 3 W average output power at 24 Vdc, delivers 24.9 dB gain and –30.8 dBc ACPR at 3500 MHz, and enables rapid validation of analog/digital linearization in massive MIMO and outdoor small cell designs.

For engineers reviewing the AFSC5G35D35-EVB datasheet, AFSC5G35D35-EVB reference circuit, AFSC5G35D35-EVB application, or AFSC5G35D35-EVB compatible PA modules, this board provides a production-representative test platform with fully matched 50 Ω I/O, calibrated bias networks, and documented layout guidelines per NXP's AFSC5G35D35 reference design (Rev. 3.0).

Technical Context

The AFSC5G35D35-EVB implements NXP's validated reference circuit for the AFSC5G35D35 PA module, including ferrite beads (BLM15PD300SN1), 10 μF/1 μF/0.1 μF decoupling capacitors, and 2.2 kΩ gate feed resistors for thermal tracking. It uses Rogers RO4350B PCB material (ε_r = 3.67) with optimized thermal pad layout for 125 °C case operation.

All component values and placement follow AN12071 (Doherty biasing) and AN1977/AN1987 (quiescent current control). The board supports both CW and modulated testing-including 1×20 MHz LTE with 8 dB PAR-and includes provisions for VGP1/VGP2, VGC1/VGC2, VDC1/VDC2, and RFin/RFout signal routing per the AFSC5G35D35 pinout.

Key Specifications

Availability

AFSC5G35D35-EVB is available at Aetrix Electronics and suitable for wireless infrastructure prototyping, 5G base station RF front-end validation, and LTE small cell transceiver development requiring stable component supply and production-aligned reference design fidelity.

Supply support for AFSC5G35D35-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 AFSC5G35D35-EVB belongs to NXP's Airfast® RF Power Amplifier Evaluation Platform family, engineered specifically to de-risk high-frequency PA integration in massive MIMO, remote radio heads, and outdoor small cells.

FAQ

What is the primary purpose of the AFSC5G35D35-EVB?

The AFSC5G35D35-EVB is an evaluation board designed exclusively for the AFSC5G35D35 Doherty power amplifier module. It provides a fully implemented, production-ready reference circuit-using Rogers RO4350B PCB, calibrated bias networks, and NXP-qualified components-to enable rapid RF performance validation, linearization algorithm development, and thermal characterization of the AFSC5G35D35 in 3400–3600 MHz LTE and 5G systems.

Does the AFSC5G35D35-EVB support both TDD and FDD LTE configurations?

Yes, the AFSC5G35D35-EVB supports both TDD and FDD LTE configurations because it implements the exact reference circuit used in NXP's published specifications for the AFSC5G35D35, which is explicitly qualified for both architectures. The board's 50 Ω matched I/O, bias sequencing, and thermal design align with the device's field-proven operation across TDD/FDD base station applications.

What RF performance metrics can be measured directly using the AFSC5G35D35-EVB?

Using the AFSC5G35D35-EVB, engineers can directly measure key RF metrics including gain (24.9 dB typ. at 3500 MHz), ACPR (–30.8 dBc typ.), PAE (36.7% typ.), and IMD (–26.1 dBc IM3), all under standardized conditions matching NXP's datasheet test setup: 24 Vdc, 3 W Avg. output, 1×20 MHz LTE, and 8 dB PAR. The board's layout and component selection ensure measurement correlation with published data.

Is the AFSC5G35D35-EVB compatible with standard RF test equipment?

Yes, the AFSC5G35D35-EVB features SMA connectors for RFin and RFout, standard 0.1″ pitch headers for all DC bias lines (VDC1/VDC2, VGP1/VGP2, VGC1/VGC2), and clearly labeled test points aligned with NXP's functional test fixture. Its 50 Ω system impedance, controlled trace routing, and decoupling structure ensure compatibility with vector network analyzers, signal generators, spectrum analyzers, and power meters without adapter or calibration penalties.

Where can I find the schematic and layout files for the AFSC5G35D35-EVB?

Schematic and layout documentation for the AFSC5G35D35-EVB is provided in NXP's AFSC5G35D35 datasheet (Rev. 2, May 2019), specifically Figures 2 (Reference Circuit Component Layout) and 3 (PCB Pad Layout), along with Table 7 (Component Designations and Values). No separate Gerber or schematic file package is distributed-the board is built strictly to those published specifications.