Product category: Analogue and Mixed Signal ICs
News Release from: National Semiconductor | Subject: LM48510 audio amplifier
Edited by the Electronicstalk Editorial Team on 07 February 2007
Audio amplifier chips have built in
convertors
National Semiconductor's Boomer Class D audio amplifiers have integrated convertor technology that eliminates the need for an external boost convertor.
National Semiconductor's LM48510 is the first product in a new line of Boomer Class D audio amplifiers with integrated convertor technology that eliminates the need for an external boost convertor The LM48510 enables manufacturers to design portable products that are able to operate at constant high-level output power even as batteries deplete to lower voltages
This article was originally published on Electronicstalk on 5 Jan 2001 at 8.00am (UK)
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The new audio amplifier provides the boosted power portable products need when operating on low battery voltages.
The amplifier's small footprint makes it well suited for portable global positioning systems (GPS), wireless handsets, portable media players, medical equipment, voice-prompted fire alarms and a broad range of other battery-powered applications.
In addition to its small footprint, National's LM48510 uses minimal external components, which saves significant board space compared to multichip systems.
National's LM48510 is capable of creating 1.2W of continuous power to an 8Ohm speaker from a 3V input voltage.
The amplifier drives a 4-Ohm speaker load at a continuous output power of 1.7W with less than 1 percent total harmonic distortion plus noise (THD+N).
The Boomer amplifier features a low-power-consumption shutdown mode as well as output short-circuit and thermal overload protection.
Advanced pop-and-click circuitry eliminates output transients which would otherwise occur during power or shutdown cycles.
The LM48510 is externally configurable for independent gain control from multiple sources.
Available now in a 0.5mm-pitch, 16-pin LLP package, the LM48510 is priced at $1.35 in 1,000-unit quantities.
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