Product category:
Analogue and Mixed Signal ICs
News Release from: Texas Instruments (April 2006-) | Subject: TAS5352 and TAS5342
Edited by the Electronicstalk Editorial
Team on 03 October 2007
Digital amplifiers scale power peaks
Power stages drive speakers with minimal audible artefacts during high-power peaks.
Texas Instruments has introduced its next generation of high-performance digital amplifier power stages The TAS5352 is capable of continuously driving two channels at 100W, and the TAS5342 is capable of driving 125W per channel at 10% total harmonic distortion plus noise (THD+N) into a 4ohm load
This article was originally published on Electronicstalk on 4 Apr 2006 at 8.00am (UK)
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Their high signal-to-noise ratio (SNR) of 98dB allows manufacturers to meet consumer demand for high performance audio and home theatre applications, such as high-power DVD receivers, home theatres in a box and mini component systems.
The TAS5352 and TAS5342 power stages are all pin-for-pin compatible with TI's TAS5142DDV evaluation module, while providing additional benefits that ultimately lower system and manufacturing costs.
TI's proprietary current-limiting circuit manages overcurrents, avoiding unnecessary shutdowns and protecting against short-circuit conditions.
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This feature allows the power stage to drive speakers with minimum audible artefacts during high-power peaks, and reduces the possibility of device shutdown during high-level music transients.
The TAS5352 and TAS5342 also allow the engineer to program the OC level to customise this setting according to the filtering inductors used.
In addition, the TAS5342L provides a lower-cost alternative, offering designers another performance option for applications, based on their system performance and cost requirements.
The TAS5352, TAS5342 and TAS5342L digital amplifiers are based on TI's PurePath Digital technology, which allows consumer electronics manufacturers to build complete digital, end-to-end audio products with cutting-edge sound in a compact form factor.
By reproducing movie soundtracks or music exactly the way the artist intended, PurePath Digital technology offers exceptional high-end digital entertainment to the everyday consumer.
PurePath Digital technology complements other TI digital and high-performance analogue products that support audio applications, such as digital signal processors (DSPs), switch mode power management, analogue Class-D amplifiers and audio convertors.
TI provides the silicon, software, systems expertise and support for the entire audio signal chain, enabling customers to get to market quickly.
The TAS5352, TAS5342 and TAS5342L digital amplifier power stages are available now in 44-pin HTSSOP packages.
Pricing in 1000-unit quantities for the TAS5352 is US $4.15 each, the TAS5342 is $3.95 and the TAS5342L is $2.95.
The digital amplifier power stages are EMC-compliant when used with the appropriate system designs.
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