LM1812 Overview
Key Specifications
Package: SMD/SMT
Mount Type: Surface Mount
Pins: 12
Max Voltage (typical range): 2.8 V
Description
The LM1812 is a general purpose ultrasonic transceiver designed for use in a variety of ranging sensing and communications 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 to 325 kHz The externally programmed receiver gain provides a detection sensitivity of 200 mVp-p Detection circuitry included on-chip is capable of rejecting impulse noise with external programming The detector output sinks up to 1A.
