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Integrated Class-D audio amps deliver 600W

Posted: 08 Jan 2010 ?? ?Print Version ?Bookmark and Share

Keywords:Class-D amplifier? audio amplifier? HD stereo?

TAS5630 Class-D amp

Texas Instruments Inc. announces the TAS5630 and TAS5631 Class-D audio amplifiers that advance the home entertainment experience. The devices are capable of driving 600W, featuring the highest stereo output power in the industry that is more than twice that of the closest comparable devices.

Using TI's closed-loop architecture, the amplifiers integrate PurePath HD technology to achieve HD media playback and ultralow distortion in A/V and DVD receivers, Blu-ray home theater systems, home theater-in-a-box, mini/micro component systems and professional audio systems.

The devices feature audio bandwidth exceeding 73kHz to achieve high-definition media playback in applications such as in Blu-ray home theater systems. They offer low distortion across frequency, delivering a rich, natural sound. Plus high power supply noise rejection reduces BOM and lowers system cost by relaxing power supply requirements.

Also, the audio amplifiers offer 300W stereo or 600W mono output power at greater than 88 percent efficiency, eliminating the need for transformers or large heat sinks, reducing BOM and total solution cost. A 0.03 percent THD at 1W into 4? load (stereo) provides ultra-low distortion at normal listening levels. Thus the devices offer power levels equivalent to traditional discrete Class-D amplifiers with 70 percent fewer components, lowering system failure rate, accelerating time-to-market and achieving higher manufacturing yield.

Power supply reference designs are available to further simplify development, and design is made easier by analog and pulse-width modulation (PWM) input options in pin-compatible packages that maximize design flexibility. Specifically, pin compatibility with the TAS5615 and TAS5616 150W stereo amplifiers maximizes design reuse for lower power systems.

The TAS56xx family is available to support multiple design configurations. The 600W TAS5630 and TAS5631 are available in analog-input and PWM-input configurations, respectively, in two package sizes. The PHD package is $5.45 and the DKD is $6.35 in 1,000-unit quantities. The 300W TAS5615 and TAS5616 are also available in analog-input and PWM-input configurations, respectively, priced at $4.45 for the PHD package and $5.35 for the DKD.





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