Geehy | G32A221

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The second-generation AK2 ultrasonic sensor and signal processor, the G32A221, features an Arm® Cortex®-M0+ microcontroller operating at a 48 MHz clock speed, equipped with 32 KB + 512 B of eFlash and 5 KB of SRAM, providing ample code storage and data cache space for ultrasonic signal processing. The chip integrates a wide range of peripheral interfaces, including UART, GPIO, ADC, and DAC, enabling flexible integration with various sensors and actuators to meet diverse system configuration requirements.

Performance

High-speed DSI3 communication, with a maximum data rate of 666 kbit/s

Embedded 32-bit MCU

Arm^® Cortex^®-M0+
eFlash: 32 KB + 512 B
SRAM: 5 KB
UART x 1
GPIO x 4
10-bit ADC x 1
8-bit DAC x 2
SWD debug interface

High Reliability and Comprehensive Diagnostic Functions

Resonance Frequency and Resonance Time Measurement
Built-in Temperature Sensor
Self-Test Function

Technological Innovation

Multi-mode Waveform Encoding: Supports fixed-frequency, linear frequency modulation, frequency modulation, and custom waveform encoding, allowing for flexible selection of the optimal waveform strategy based on different detection scenarios
Intelligent Algorithm Optimization: Incorporates the Fast Time Constant (FTC) algorithm and Static Time Constant (STC) to effectively optimize detection performance at both near and far distances
Interference-Resistant Encoding: Utilizes new ultrasonic signal encoding technology to significantly enhance noise immunity and environmental adaptability
Flexible Drive Solutions: Supports center-tapped transformer drive and is compatible with various transducer configurations, providing flexible adaptation for different application scenarios
RawData Mode: Supports raw envelope compression with a 10x compression ratio, enabling AI-based recognition of obstacle height attributes