Integrated ultrasonic ranging functions
The PW0268 combines functions commonly needed in a pulse-echo sonar signal chain. The integrated approach can simplify module development, reduce component count, and provide a defined starting architecture for ultrasonic ranging.
Functional capabilities
- Internal voltage regulation
- Temperature-compensation support
- Ultrasonic transmit circuitry
- Two stages of pre-amplification
- Time-controlled variable-gain amplification
- High- and low-band-pass filtering
- Detection and signal processing
Design considerations
Oscillator components, transducer selection, matching network, supply conditions, board layout, noise control, gain timing, thresholds, and mechanical/acoustic design all affect system performance. Request the current IC datasheet and reference information before beginning a production design.
Classification: The PW0268 is a sonar-ranging integrated circuit used with external ultrasonic transducers and supporting components; it is not a complete sensor system by itself.