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MAX5456

Maxim Integrated Products
Part Number MAX5456
Manufacturer Maxim Integrated Products
Description Stereo Audio Taper Potentiometers
Published May 3, 2010
Detailed Description 19-3490; Rev 0; 11/04 www.DataSheet4U.com Stereo Audio Taper Potentiometers with Pushbutton Interface General Descript...
Datasheet PDF File MAX5456 PDF File

MAX5456
MAX5456


Overview
19-3490; Rev 0; 11/04 www.
DataSheet4U.
com Stereo Audio Taper Potentiometers with Pushbutton Interface General Description The MAX5456/MAX5457 dual, logarithmic taper digital potentiometers feature a simple pushbutton interface that controls volume and balance in audio applications.
Each potentiometer has 32 tap points and replaces mechanical potentiometers.
Refer to the MAX5408– MAX5411 data sheet for SPI™ versions of the MAX5456/ MAX5457.
Use the MAX5456/MAX5457 digital inputs with momentary contact single-pole/single-throw (SPST) pushbutton switches.
Each input includes internal debounce circuitry and a 50kΩ pullup resistor.
The MAX5456/MAX5457 advance the wiper setting once per button push.
Maxim’s proprietary 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.
The MAX5456/MAX5457 provide temperature coefficients of 50ppm/°C end-to-end and 5ppm/°C ratiometric and a nominal resistance of 10kΩ per potentiometer.
An integrated click/pop suppression feature minimizes the audible noise generated by wiper transitions.
The typical total harmonic distortion plus noise (THD+N) for these devices is 0.
01%.
The MAX5457 features a 3-button interface with a MODE input that toggles between volume- and balancecontrol modes.
An LED output indicates volume or balance mode.
The MAX5456 features a 4-button interface with separate inputs for up and down volume controls and left and right balance controls.
The MAX5456/MAX5457 are available in 16-pin QSOP and 16-pin TQFN packages and are specified over the extended (-40°C to +85°C) temperature range.
Features ♦ SmartWiper Control Provides Accelerated Wiper Motion ♦ Debounced Pushbutton Interface with Internal Pullup Resistors ♦ Logarithmic Taper with 2dB Steps Between Taps ♦ Single +2.
7V to +5.
5V or Dual ±2.
7V Supply Operation ♦ Low 0.
5µA Standby Supply Current ♦ Cli...



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