FXOS8700CQ

series introduction

# FXOS8700CQ Product Series Introduction

## 1. Overview
The FXOS8700CQ is a highly advanced and versatile sensor product series developed by Freescale (now NXP Semiconductors). It combines a 3 - axis accelerometer and a 3 - axis magnetometer in a single, compact package, offering a comprehensive solution for motion and orientation sensing applications. This integrated approach simplifies the design process for developers, reduces board space requirements, and provides accurate and reliable data for a wide range of end - user products.

## 2. Key Features

### 2.1 High - Performance Sensing
- **Accelerometer**: The 3 - axis accelerometer within the FXOS8700CQ can measure acceleration with high precision. It has a wide dynamic range, typically up to ±8g, which allows it to detect both gentle movements and sudden, high - impact events. This makes it suitable for applications such as fall detection in wearable devices and shock monitoring in industrial equipment.
- **Magnetometer**: The 3 - axis magnetometer provides accurate magnetic field measurements. It can detect the Earth's magnetic field, enabling the device to be used for compass functionality in navigation systems. With a high sensitivity, it can also detect small magnetic field variations caused by nearby ferromagnetic objects, which can be useful in security and proximity sensing applications.

### 2.2 Low Power Consumption
The FXOS8700CQ is designed with power efficiency in mind. It offers multiple power - saving modes, including a low - power mode and a sleep mode. In low - power mode, the sensor consumes minimal power while still providing basic sensing functionality, which is ideal for battery - powered devices such as smartwatches and fitness trackers. The sleep mode further reduces power consumption to an extremely low level when the sensor is not in use, extending the battery life of the overall system.

### 2.3 Digital Output Interface
The sensor communicates with the host microcontroller using a standard I²C or SPI digital interface. This digital output simplifies the integration process, as it eliminates the need for complex analog - to - digital conversion circuits. The I²C interface allows for easy connection to multiple sensors on the same bus, enabling the development of multi - sensor systems. The SPI interface, on the other hand, provides higher data transfer rates, which is beneficial for applications that require real - time data processing.

### 2.4 Built - in Self - Test
The FXOS8700CQ features a built - in self - test function. This allows the system to periodically check the integrity of the sensor's internal components and functionality. If a fault is detected, the self - test mechanism can generate an error signal, enabling the system to take appropriate actions, such as alerting the user or performing a system reset. This feature enhances the reliability and safety of the overall system.

## 3. Applications

### 3.1 Consumer Electronics
- **Smartphones and Tablets**: The FXOS8700CQ can be used for screen orientation detection, allowing the device to automatically switch between portrait and landscape modes. It also enables motion - based gaming, where the user's movements are translated into in - game actions. Additionally, it can be used for step counting in fitness tracking applications.
- **Wearable Devices**: In smartwatches and fitness bands, the sensor can monitor the user's physical activity, such as running, walking, and sleeping patterns. It can also be used for gesture recognition, enabling users to control the device with simple hand movements.

### 3.2 Industrial and Automotive
- **Industrial Equipment**: The sensor can be used for vibration monitoring in machinery, detecting abnormal vibrations that may indicate mechanical faults. It can also be used for tilt sensing in industrial robots, ensuring accurate positioning and movement.
- **Automotive**: In automotive

Images for reference

FXOS8700CQR1

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Datasheets

• FXOS8700CQ

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