Part # MAX5456-MAX5457 datasheet

Part Manufacturer: Maxim


Part Description: MAX5456 57 DS

Part Details:

19-3490; Rev 1; 12/05 Stereo Audio Taper Potentiometers with Pushbutton Interface MAX5456/MAX5457 General Description Features The MAX5456/MAX5457 dual, logarithmic taper digital SmartWiper Control Provides Accelerated Wiper potentiometers feature a simple pushbutton interface Motion that controls volume and balance in audio applications. Debounced Pushbutton Interface with Internal Each potentiometer has 32 tap points and replaces Pullup Resistors mechanical potentiometers. Refer to the MAX5408­MAX5411 data sheet for SPITM versions of the MAX5456/ Logarithmic Taper with 2dB Steps Between Taps MAX5457. Single +2.7V to +5.5V or Dual ±2.7V Supply Use the MAX5456/MAX5457 digital inputs with momen- Operation tary contact single-pole/single-throw (SPST) pushbutton Low 0.5µA Standby Supply Current switches. Each input includes internal debounce cir- Clickless Switching cuitry and a 50k pullup resistor. 10k End-to-End Fixed Resistance Value The MAX5456/MAX5457 advance the wiper setting onceper button push. Maxim s proprietary SmartWiperTM con- Mute Function to -90dB (typ) trol eliminates the need for a microcomputer to increase Power-On Reset to -12dB Wiper Position the wiper transition rate. Holding the control input low for 32 Tap Positions for Each Wiper more than 1s advances the wiper at a rate of 4Hz for 4sand 16Hz per second thereafter. Small 16-Pin QSOP/TQFN Packages The MAX5456/MAX5457 provide temperature coeffi-cients of 50ppm/°C end-to-end and 5ppm/°C ratiomet-ric and a nominal resistance of 10k per potentiometer. Ordering Information An integrated click/pop suppression feature minimizesthe audible noise generated by wiper transitions. The PIN- PKG typical total harmonic distortion plus noise (THD+N) for PART TEMP RANGE PACKAGE CODE these devices is 0.01%. MAX5456EEE -40oC to +85oC 16 QSOP E16-1 The MAX5457 features a 3-button interface with aMODE MAX5456ETE* -40oC to +85oC 16 TQFN T1644-4 input that toggles between volume- and balance- control modes. An LED output indicates volume or bal-

Please click the following link to download the datasheet:

MAX5456-MAX5457.pdf Datasheet