AN9515 - Multiplier Improcers the Dynamic Range of Echo Systems

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Part number	AN9515
Manufacturer	Intersil
File Size	54.92 KB
Description	Multiplier Improcers the Dynamic Range of Echo Systems
Datasheet	AN9515 Datasheet
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Multiplier Improves the Dynamic Range of Echo Systems (HA-2556, HA-5177) Application Note November 1996 AN9515.1 Introduction In an echo system the returned signal amplitude is a function www.datasheet4u.com of the distance to the target, and it can be expressed mathe- matically as function of time. An echo system with a ﬁxed gain preamp has poor dynamic range because close targets (short return times) have high signal amplitudes while distant targets (long return times) have much lower signal amplitudes. In ﬁxed gain systems, the biggest signals establish the upper preamp gain limit based on not saturating the system, and this gain may not be high enough to process small returns properly.

Published: Jun 4, 2009 |