Infineon V23818-M305-L57: Technical Specifications and Application Overview

The Infineon V23818-M305-L57 is a highly specialized Radar Sensor IC designed for advanced sensing applications. As a core component in modern electronic systems, this device integrates a 24GHz radar transceiver with a microcontroller, offering a compact and highly integrated solution for accurate motion detection and speed measurement.

Technical Specifications

This system-in-package (SiP) device is engineered for robustness and performance. Its core technical attributes include:

RF Frequency: Operates in the 24.0 - 24.25 GHz ISM band, ensuring global compliance for unlicensed short-range radar applications.

Modulation Type: Utilizes Frequency Modulated Continuous Wave (FMCW) and Continuous Wave (CW) modulation schemes, enabling precise measurement of distance, velocity, and angle of objects.

Integrated Microcontroller: Features an embedded 32-bit ARM Cortex-M3 microcontroller, which handles signal processing and system control on-chip, reducing the need for external components.

Memory: Equipped with 256 kB of flash memory and 32 kB of RAM, providing ample space for application code and data processing algorithms.

Packaging: Housed in a compact VQFN-48 (7.0mm x 7.0mm) package, making it suitable for space-constrained designs.

Operating Voltage: Supports a supply voltage range of 2.7 V to 3.6 V, typical for low-power embedded systems.

Interface: Includes standard digital communication interfaces such as UART, SPI, and I2C for easy communication with host processors and peripheral devices.

Application Overview

The integration of RF front-end and processing power makes the V23818-M305-L57 exceptionally versatile. Its primary applications are found in areas requiring reliable, contactless sensing:

Smart Home and Building Automation: It is ideal for presence detection and motion sensing in lighting systems, HVAC controls, and security installations. Its ability to detect subtle motions, like breathing, enables energy savings and enhanced user comfort.

Industrial Sensing: In factory automation, this radar IC is used for level sensing in tanks, simple robotics for object avoidance, and condition monitoring of moving machinery.

Consumer Electronics: The sensor can be embedded in appliances like TVs, laptops, and smart speakers for proximity sensing and gesture recognition, allowing for touchless control.

Automotive In-Cabin Sensing: While designed for industrial and consumer use, its technology is conceptually similar to systems used for occupant detection (e.g., for airbag control) and gesture-based HMI in vehicles.

A key advantage of this radar solution is its robust performance in challenging environmental conditions. Unlike optical sensors, it is not affected by darkness, dust, smoke, or fog, and it can see through certain materials like plastic, enabling hidden installation behind panels.

ICGOOODFIND

The Infineon V23818-M305-L57 is a highly integrated and versatile 24GHz radar solution that combines an RF transceiver with an application-class microcontroller. It stands out for its compact form factor, low power consumption, and robust FMCW radar capabilities, making it a superior choice for developers creating next-generation presence detection, motion sensing, and industrial radar applications.

Keywords: Radar Sensor IC, 24GHz, FMCW, Presence Detection, ARM Cortex-M3