NXP Semiconductors BRKOUT-FXLN8371Q

Overview

BRKOUT-FXLN8371Q from Aetrix Electronics is a breakout board designed to evaluate the Freescale FXLN8371QR1 - a 3-axis, low-power, analog-output accelerometer with ±2 g / ±8 g selectable full-scale range, high-bandwidth mode (2.7 kHz XY / 600 Hz Z), and fixed 0.75 V zero-g output offset. It enables rapid prototyping in motion-sensing applications such as white-goods vibration detection and robotics tilt sensing.

For engineers reviewing the BRKOUT-FXLN8371Q datasheet, BRKOUT-FXLN8371Q pinout, BRKOUT-FXLN8371Q application, or BRKOUT-FXLN8371Q equivalent, this board provides accessible 0.1" headers for XOUT/YOUT/ZOUT, EN, ST, g-Select, and BYP signals - simplifying interface to microcontrollers with ADC inputs and digital I/O, while preserving factory-configured high-bandwidth analog response and low 180 µA active current draw.

Technical Context

The BRKOUT-FXLN8371Q implements direct access to the FXLN8371QR1's analog acceleration outputs and digital control pins without signal conditioning or level-shifting. Its layout maintains 3.3 nF/8.2 nF external bandwidth-setting capacitor footprints per axis to retain the device's specified 2.7 kHz (X/Y) and 600 Hz (Z) high-bandwidth response.

It exposes all functional pins of the underlying QFN-12 IC - including EN (shutdown enable), ST (self-test activation), and g-Select (±2 g / ±8 g range selection) - allowing full evaluation of power management, sensor verification, and dynamic range switching without soldering modifications.

Key Specifications

Availability

BRKOUT-FXLN8371Q is available at Aetrix Electronics and suitable for robotics motion sensing, white-goods vibration monitoring, and inclinometer development requiring stable component supply and rapid evaluation turnaround.

Supply support for BRKOUT-FXLN8371Q 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

Freescale Semiconductor (now part of NXP Semiconductors) is a global semiconductor company specializing in embedded processing, sensors, and connectivity solutions for industrial, automotive, and IoT applications.

The FXLN83xxQ product line was developed specifically for ultra-low-power, analog-output motion sensing in space-constrained, cost-sensitive applications - prioritizing simplicity of integration, minimal external components, and calibrated analog output stability across temperature.

FAQ

What is the BRKOUT-FXLN8371Q used for?

The BRKOUT-FXLN8371Q is an evaluation breakout board for the FXLN8371QR1 accelerometer. It converts the 3×3 mm QFN-12 package into a breadboard- and prototype-board-friendly format with 0.1" spaced headers. BRKOUT-FXLN8371Q allows engineers to quickly validate analog output behavior, self-test functionality, range switching, and low-power shutdown modes without custom PCB design.

Does the BRKOUT-FXLN8371Q include the FXLN8371QR1 IC?

Yes - the BRKOUT-FXLN8371Q ships with a fully assembled and tested FXLN8371QR1 IC mounted on the board. The IC is factory-configured for high-bandwidth operation (2.7 kHz XY / 600 Hz Z) and supports ±2 g / ±8 g full-scale range selection via the g-Select pin. No additional soldering or component placement is required to begin evaluation.

What are the key interface signals exposed on the BRKOUT-FXLN8371Q?

The BRKOUT-FXLN8371Q exposes all functional pins of the FXLN8371QR1: VDD, GND, XOUT, YOUT, ZOUT, EN (enable), ST (self-test), g-Select (range control), BYP (voltage regulator bypass), and two NC pads. Each signal is routed to a plated-through-hole header with 0.1" spacing, enabling direct connection to logic-level microcontrollers and oscilloscopes.

Can the BRKOUT-FXLN8371Q be used with 5 V microcontrollers?

No - the BRKOUT-FXLN8371Q is designed for 1.71–3.6 V operation only, matching the FXLN8371QR1's absolute maximum ratings. Connecting VDD > 3.6 V or applying 5 V logic signals to EN, ST, or g-Select will permanently damage the FXLN8371QR1 IC on the BRKOUT-FXLN8371Q. Level-shifting circuitry must be added externally if interfacing with 5 V systems.

How is bandwidth configured on the BRKOUT-FXLN8371Q?

Bandwidth is factory-programmed into the FXLN8371QR1 IC on the BRKOUT-FXLN8371Q and cannot be changed in-circuit. This unit is pre-configured for high-bandwidth mode: 2.7 kHz on X/Y axes and 600 Hz on Z axis. External capacitors (8.2 nF on Z, 3.3 nF on X/Y) are required on the board to achieve these values - footprints and recommended values are provided in the BRKOUT-FXLN8371Q silkscreen and documentation.