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The GW6220 simplifies particulate matter detection by integrating an MCU and an analog front end, reducing the component count. An automatic power control unit efficiently manages external sensing components. The integrated analog front end includes a Transimpedance Amplifier (TIA), two Programmable Gain Amplifiers (PGAs) with low-pass filters, and a 12-bit ADC.

These components process the sensor's input by amplifying, filtering, and converting it into a digital format, ready for proprietary digital signal processing algorithms. Two embedded Low Dropout Regulators (LDOs) provide essential power, while an internal temperature sensor, in coordination with the ADC, monitors operating temperature.

The GW6220 features 32KB of embedded Flash memory for program and data storage, and 2KB of SRAM for critical processing data.
Multiple communication interfaces, such as UART and SPI/I2C options, ensure efficient host device connectivity.