LM1812 Datasheet - National Semiconductor

LM1812, ULTRASONIC TRANSCEIVER

LM1812 Ultrasonic Transceiver April 1989 LM1812 Ultrasonic Transceiver General .
The LM1812 is a general purpose ultrasonic transceiver designed for use in a variety of ranging sensing and communications applications The chip conta.

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Datasheet Details

Part number:

LM1812

Manufacturer:

National Semiconductor

File Size:

174.85 KB

Description:

ULTRASONIC TRANSCEIVER

Features

* Y One or two-transducer operation Y Transducers interchangeable without realignment Y No external transistors Y Impulse noise rejection Y No heat sinking Y Protection circuitry included Y Detector output drives 1A peak load Y Ranges in excess of 100 feet in water 20 feet in air Y 12W peak transmit

Applications

* The chip contains a pulse-modulated class C transmitter a high gain receiver a pulse modulation detector and noise rejection circuitry A single LC network defines the operating frequency for both the transmitter and receiver The class C transmitter output drives up to 1A (12W) peak at frequencies up

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LM1812 ULTRASONIC TRANSCEIVER National Semiconductor

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