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Maxim amplifier suits notebook PCs, DVD players

Posted: 08 Mar 2004 ?? ?Print Version ?Bookmark and Share

Keywords:maxim integrated products? max9750c? audio amplifier? directdrive?

Maxim Integrated Products' MAX9750C integrated audio amplifier is designed for notebook PCs, flat-panel displays and portable DVD players.

The device combines the benefits of Maxim's patented DirectDrive headphone-amplifier technology with a stereo, 2.6W, bridge-tied load (BTL) audio amplifier for a low-cost,

low-component count audio amplifier solution.

According to the company, the DirectDrive headphone amplifier produces a ground-referenced output from a single supply, eliminating the two bulky dc-blocking capacitors typically required between the amplifier and headphone.

The MAX9750C operates from a single 4.5V to 5.5V supply, produces up to 2.6W into a 4-ohm load, and features high 90dB PSRR. The low 0.01 percent THD+N ensures clean, high-fidelity audio playback, and the click-and-pop suppression eliminates audible transients on power and shutdown cycles.

Featuring selectable gain levels, dc volume control and a beep input, the device includes short-circuit and thermal-overload protection, and operates over the extended temperature range of -40C to 85C. Housed in a 28-pin TQFN package, it is priced at 90 cents (100,000-up FOB USA).

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