MAX5406 Datasheet | Maxim Integrated

Description The MAX5406 stereo audio processor provides a plete audio solution with volume, balance, bass, and treble controls. It features dual 32-tap logarithmic potentiometers for volume control, dual potentiometers for balance control, and linear digital potentiometers for tone control. A simple debounced pushbutton interface controls all functions. The MAX5406 advances the wiper setting once per button push. Maxim’s proprietary Smart Wiper™ control eliminates the need for a microcontroller (µC) 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 thereafter. An integrated click/pop suppression feature eliminates the audible noise generated by the wiper’s movements. The MAX5406 provides a subwoofer output that internally bines the left and right channels. An external filter capacitor allows for a customized cut-off frequency for the subwoofer output. A bass-boost mode enhances the low-frequency response of the left and right channels. An integrated bias amplifier generates the required (VDD + VSS) / 2 bias voltage, eliminating the need for external op amps for unipolar operation. The MAX5406 also features ambience control to enhance the separation of the left- and right-channel outputs for headphones and desktop speakers systems, and a pseudostereo feature that approximates stereo sound from a monophonic signal. The MAX5406 is available in a 7mm x 7mm, 48-pin TQFN package and in a 48-pin TSSOP package and is specified over the extended (-40°C to +85°C) temperature range. Features - Audio Processor Including All Op Amps and Pots for Volume, Balance, Mute, Bass, Treble, Ambience, Pseudostereo, and Subwoofer - 32-Tap Volume Control (2d B Steps) - Small, 7mm x 7mm, 48-Pin TQFN and 48-Pin TSSOP Packages - Single +2.7V to +5.5V or Dual ±2.7V Supply Operation - Clickless Switching and Control - Mute Function to < -90d B (typ) - Channel Isolation > -70d B (typ) - Two Sets of...