Audio Processor - Maxim Integrated Products
Description
19-3817; Rev 0; 5/06
Audio Processor with Pushbutton Interface
General Description
The MAX5406 stereo audio processor provides a complete 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 SmartWiper™ control eliminates the need for a microcontroller (µC) to increase the wiper transition www.
DataSheet4U.
com 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 combines 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 (2dB 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 Contr...
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