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General Description

The MAX5406 stereo audio processor provides a com-

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 propri-

etary SmartWiper™ 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 inter-

nally combines the left and right channels. An external

filter capacitor allows for a customized cut-off frequen-

cy 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 (V

+ V

) / 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 sys-

tems, 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) tempera-

ture range.

Applications

Automotive Rear-Seat Entertainment (RSE)

Desktop Speakers

Portable Audio

PDAs or MP3 Player Docking Stations

Karaoke Machines

Flat-Screen TVs

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 Control

♦ Mute Function to < -90dB (typ)

♦ Channel Isolation > -70dB (typ)

♦ Two Sets of Single-Ended or Differential Stereo

Inputs Can Be Used for Summing/Mixing

♦ Debounced Pushbutton Interface Works with

Momentary Contact Switches or Microprocessors

(µPs)

♦ Low 0.2µA (typ) Shutdown Supply Current

♦ Shutdown Stores All Control Settings

♦ 0.02% (typ) THD into 10kΩ Load, 25µV

RMS

(typ)

Output Noise

♦ Internally Generated 1/2 Full-Scale Bias Voltage

for Single-Ended Applications

♦ Power-On Volume Setting to -20dB

♦ Internal Passive RF Filters for Analog Inputs

Prevent High Frequencies from Reaching the

Speakers

MAX5406

Audio Processor with Pushbutton Interface

________________________________________________________________ Maxim Integrated Products 1

19-3817; Rev 0; 5/06

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Ordering Information

PART

TEMP RANGE

PIN-

PACKAGE

PKG

CODE

MAX5406EUM

-40°C to +85°C

48 TSSOP U48-1

MAX5406ETM*

-40°C to +85°C

48 TQFN T4877-6

SmartWiper is a trademark of Maxim Integrated Products, Inc.

*Future product—contact factory for availability.

Pin Configurations appear at end of data sheet.

1 2 3 4 5 6 ... 25 26

Indice de contenidos

Pagina 1 - Ordering Information

General DescriptionThe MAX5406 stereo audio processor provides a com-plete audio solution with volume, balance, bass, andtreble controls. It features

Pagina 2 - ELECTRICAL CHARACTERISTICS

MAX5406Audio Processor with Pushbutton Interface10 ______________________________________________________________________________________0.90.70.50.30

Pagina 3

MAX5406Audio Processor with Pushbutton Interface______________________________________________________________________________________ 11Pin Descripti

Pagina 4

MAX5406Audio Processor with Pushbutton Interface12 ______________________________________________________________________________________Pin Descripti

Pagina 5

MAX5406Audio Processor with Pushbutton Interface______________________________________________________________________________________ 13Pin Descripti

Pagina 6 - BAXANDALL CURVE

MAX5406Audio Processor with Pushbutton Interface14 ______________________________________________________________________________________Detailed Desc

Pagina 7

MAX5406Audio Processor with Pushbutton Interface______________________________________________________________________________________ 15Up/Down Inter

Pagina 8

MAX5406Audio Processor with Pushbutton Interface16 ______________________________________________________________________________________tLPWtWSVOLUPW

Pagina 9

MAX5406Audio Processor with Pushbutton Interface______________________________________________________________________________________ 17response curv

Pagina 10 - MAX5406 toc11b

MAX5406Audio Processor with Pushbutton Interface18 ______________________________________________________________________________________Alternatively

Pagina 11 - Pin Description

MAX5406Audio Processor with Pushbutton Interface______________________________________________________________________________________ 19Ambience Cont

Pagina 12 - Pin Description (continued)

MAX5406Audio Processor with Pushbutton Interface2 _______________________________________________________________________________________ABSOLUTE MAXI

Pagina 13

MAX5406Audio Processor with Pushbutton Interface20 ______________________________________________________________________________________When FL(S) an

Pagina 14 - Detailed Description

MAX5406Audio Processor with Pushbutton Interface______________________________________________________________________________________ 21PseudostereoP

Pagina 15 - Potentiometers

MAX5406Audio Processor with Pushbutton Interface22 ______________________________________________________________________________________Subwoofer Out

Pagina 16 - Figure 2a. Single-Pulse Input

MAX5406Audio Processor with Pushbutton Interface______________________________________________________________________________________ 234443424140393

Pagina 17

MAX5406Audio Processor with Pushbutton Interface24 ______________________________________________________________________________________X2VLOGICDGNDC

Pagina 18

MAX5406Audio Processor with Pushbutton Interface______________________________________________________________________________________ 25Package Infor

Pagina 19 - Ambience Control

MAX5406Audio Processor with Pushbutton InterfaceBobletMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodi

Pagina 20

MAX5406Audio Processor with Pushbutton Interface_______________________________________________________________________________________ 3ELECTRICAL CH

Pagina 21

MAX5406Audio Processor with Pushbutton Interface4 _______________________________________________________________________________________PARAMETERSYMB

Pagina 22 - Chip Information

MAX5406Audio Processor with Pushbutton Interface_______________________________________________________________________________________ 5PARAMETERSYMB

Pagina 23 - Pin Configurations

Typical Operating Characteristics(TA = +25°C, unless otherwise noted.)ATTENUATION vs. TAP POSITIONTAP POSITIONATTENUATION (dB)MAX5406 toc01a0 4 8 12 1

Pagina 24 - ( )

MAX5406Audio Processor with Pushbutton Interface_______________________________________________________________________________________ 7BAXANDALL CUR

Pagina 25 - Package Information

MAX5406Audio Processor with Pushbutton Interface8 _______________________________________________________________________________________TOTAL SUPPLY

Pagina 26 - 48L TSSOP.EPS

MAX5406Audio Processor with Pushbutton Interface_______________________________________________________________________________________ 9ILOGIC vs. VL

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Rainbow-electronics MAX5406 Manual de usuario

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