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Ultrasonic Sonar Ranging IC Usnc Sonar Rangin IC
Operates in 6 10 V single voltageWide operation frequency range up to 250kHzTemperature controlled oscillator traces resonant frequency drift of transducersBuilt-in 32 steps time controlled gain amplifierBuilt-in band pass filter of less external tuned componentsBi-direction IO for both driving pulse and echoAdjustable system clock for various detection rangeSuitable for car reversing aids tape measurements and other sonar ranging applications The PW-0268 ultrasonic sonar ranging IC is designed specially for ultrasonic echo ranging application. This chip consists of an external tuneable RC oscillator with a special feature of automatic frequency tracing which compensates the resonant frequency shift of used transducer due to temperature change a stage of fixed gain pre-amplifier setting
externally a 32 steps time controlled gain amplifier a less external components band pass filter a comparator converts analogue signal to TTL digital signal for external µP processing and a tuneable timer acts as time reference for chip clock.
externally a 32 steps time controlled gain amplifier a less external components band pass filter a comparator converts analogue signal to TTL digital signal for external µP processing and a tuneable timer acts as time reference for chip clock.
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