MAX5456EEE+

MAXIM INTEGRATED PRODUCTS  MAX5456EEE+  易失性数字电位器, SPST, 10 kohm, 双, 按钮, 对数（音频）, ± 30%, 2.7 V

The is a stereo audio taper potentiometer with pushbutton interface in 16 pin QSOP package. This device is a dual logarithmic potentiometer used to control volume and balance in audio applications. Each potentiometer has 32-taps and the device uses digital inputs with momentary contact single-pole/single-throw SPST pushbutton switches. MAX5456 has advance wiper setting with once per button push. SmartWiper control eliminates the need for a microcomputer to increase the wiper transition rate. Holding the control input low for more than 1s advances the wiper at a rate of 4Hz for 4s and 16Hz per second thereafter. It has 4-button interface with separate inputs for up and down volume controls, left and right balance controls.

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SmartWiper control provides accelerated wiper motion

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Debounced pushbutton interface with internal pull-up resistor

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Logarithmic taper with 2dB steps between taps

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Single +2.7V to +5.5V or dual ±2.7V supply operation

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Low standby supply current of 0.5µA

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Clickless switching

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Mute function to -90dB typ

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Power-on reset to -12dB wiper position

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End to end resistance is 10Kohm at ±30% tolerance and temperature coefficient is 50ppm/°C

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Ratiometric temperature coefficient of 5ppm/°C