Geehy officially announces the mass production of its second-generation AK2 ultrasonic sensor and signal processor, the G32A221. This new product represents a comprehensive upgrade in terms of core performance, communication efficiency, and signal processing capabilities, setting it at the industry's leading level. It provides more efficient and reliable support for applications such as autonomous parking and environmental sensing in smart vehicles.

Highly Integrated Solution, Simplifying System Design

The G32A221 is equipped with an Arm® Cortex®-M0+ microcontroller operating at 48MHz. It features 32KB of eFlash memory and 512KB of SRAM, providing ample space for storing code and caching data required for ultrasonic signal processing. The chip also includes various peripheral interfaces such as UART, GPIO, ADC, and DAC. This allows for flexible integration with various sensors and actuators, meeting the needs of different system configurations. It significantly reduces the complexity of external circuits, helping customers lower BOM costs and shorten development time.

High-speed DSI3 Communication Significantly Improves Real-time Performance

With an integrated high-speed DSI3 communication interface, the transmission rate reaches up to 666 kbit/s, exceeding industry standards. This interface supports both point-to-point and bus topologies, allowing flexible adaptation to various system architectures. The high-speed data transfer capability reduces system response times, ensuring efficient transmission of commands and data in scenarios requiring high real-time performance, such as autonomous parking.

Intelligent Signal Processing Enables Seamless Operation in Complex Environments

In terms of signal processing, the G32A221 incorporates several technological innovations:

• Multi-mode waveform encoding: Supports fixed-frequency, linear frequency modulation, frequency hopping, and custom waveform encoding. The optimal waveform strategy can be selected flexibly based on different detection scenarios;

• Intelligent algorithm optimization: The Fast Time Constant algorithm (FTC) and Sensitivity Time Control (STC) are utilized to effectively improve detection performance at both near and far distances;

• Anti-interference coding: Utilizes advanced ultrasonic signal coding technology to significantly enhance noise resistance and environmental adaptability;

• Flexible drive solutions: Supports central-tap transformer drive, is compatible with various transducer configurations, and provides flexible adaptation for different application scenarios;

• RawData mode: Supports compression of the raw envelope data, with a 10x compression ratio. It enables transmission of 5 meters of raw envelope data within 40 milliseconds, thereby facilitating AI-based detection of obstacles' height and other characteristics.

At the same time, the chip incorporates various functional modules such as echo envelope processing, Near-Field Data Acquisition (NFD), and Echo Data Interface (EDI). These features enable precise capture of near-field echo details, effectively eliminate blind spots, and improve the accuracy of detecting obstacles at close distances.

Automotive-grade Reliability and Stable Performance in Harsh Environments

Utilizes QFN20L4 packaging, with an operating temperature range of -40°C to +105°C. The product has obtained both AEC-Q100 automotive reliability certification and ISO 26262 ASIL-B functional safety certification. Equipped with a built-in temperature sensor, self-check functions, and vibration monitoring mechanisms for self-diagnosis. It enables real-time health monitoring functions such as echo detection, temperature detection, and ringing detection. Moving from "point-by-point optimization" to "system autonomy", this design provides multiple layers of protection for system reliability.

A Comprehensive Development Ecosystem that Accelerates Customers' Product Implementation

To help customers quickly complete product development and validation, Geehy provides comprehensive software and hardware support:

• Hardware Support: Provides typical application circuit designs, including reference values for external components such as DSI filtering, power supply decoupling, and ESD protection;

• Software Support: Provides host computer tools, product firmware, and related drivers to reduce development barriers;

• Packaging information: QFN20L4 package dimensions are provided (4x4mm).

Wide Range of Application Scenarios, Enabling Intelligent Transportation

The G32A221 ultrasonic sensor and signal processor can be widely used in various applications:

• Parking assistance system: Utilizes front and rear radar sensors to achieve accurate distance measurement and obstacle detection;

• Distance measurement devices: Non-contact distance measurement modules suitable for industrial or vehicle-mounted applications;

• ADAS Extended Applications: Can be integrated into multi-sensor fusion systems to enhance environmental perception capabilities.

The mass production of Geehy's second-generation AK2 ultrasonic sensor and signal processor, the G32A221, marks a further deepening of the integration between domestic chip technology and the automotive industry. This represents a model for collaborative innovation between core component suppliers and vehicle manufacturers. In the future, Geehy will continue to strive to provide cutting-edge chip technologies and solutions, helping the automotive industry move towards a smarter and safer future.