The GW7124 is a device that combines an integrated microcontroller and an analog front end to provide ultrasonic range detection using a minimal number of components. Its pulse-width modulation (PWM) output allows for programmable bursts to be sent to a single ultrasonic transducer.
By utilizing internal components such as a programmable gain amplifier (PGA), a 12-bit analog-to-digital converter (ADC), digital filters, an envelope detector, and a peak detector, the desired measurement range and resolution can be achieved. Additionally, the device includes an internal temperature sensor and ADC for reading operating temperature information.
The device includes a 32KB embedded Flash memory for storing application-specific program and data, while a 4KB SRAM is available for storing data required for signal processing purposes.
The GW7124 offers various communication interfaces, including UART, I2C, SPI and I/O communication making it convenient to connect with a host device.