DirectDrive generates a ground-referenced output from a single 1.8V to 3.6V supply, which unlike competing solutions, doesn’t require a mid-rail dc bias voltage to be applied to the headphone jack ground pin. This doubles the dynamic range of the output swing and simplifies end-product design and reliability.

The MAX4411B has a fixed gain of -2V/V, produces 80MW per channel into a 16Ω load, and has very low 0.003% THD + N. A high 86 dB PSRR at 217 Hz allows direct operation from noisy supplies without additional conditioning. Independent left/right, low-power shutdown controls optimize power savings in mixed mode mono/stereo applications. In addition to minimizing size, the elimination of dc-blocking capacitors improves the amplifier's low-frequency response, allowing full-range audio reproduction. This is especially important for music and video playback. Comprehensive click-and-pop reduction circuitry ensures fast turn on/turn off times without audible glitches. The outputs include ±8kV ESD protection.

For more information, visit www.maximic.com

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© 2007 Penton Media, Inc.