Maxim's MAX9727 is a quad audio line driver that provides a complete line-output solution for consumer audio systems. When operated from a single +5 V supply, it outputs 3 V rms signal levels; with a +3,3 V supply, it outputs 2 V rms signals. The DirectDrive MAX9727 is intended for multichannel PC sound cards, set-top boxes, A/V receivers, DVD players, and a variety of portable media players.
Maxim's innovative DirectDrive technology creates an on-chip negative supply, which allows the MAX9727 line driver to output full line-level signals while operating from a single power supply. As an added benefit, the device's output signal is biased at ground. This eliminates the need for DC-blocking capacitors, improving the low-frequency response, reducing distortion, and saving cost.
Integrated differential inputs improve system noise management. Gain can be precisely controlled by external resistors. The MAX9727 features a high 100 dB PSRR, 111 dB signal-to-noise ratio, and ultra-low 0,0005% THD+N, as well as click-and-pop suppression.
Available in 20-pin QSOP package, the MAX9727 is specified over -40 to +85°C.
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