MAX5486 Maxim Integrated Products, MAX5486 Datasheet

MAX5486

Manufacturer Part Number

MAX5486

Description

Stereo Volume Control

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX5486.pdf (16 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

MAX5486EUG

Manufacturer:

MAXIM/美信

Quantity:

20 000

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The MAX5486 dual 40kΩ logarithmic taper volume con-

trol features a debounced pushbutton up/down interface

that controls volume and balance in audio applications.

Each potentiometer has 32 log-spaced tap points with a

buffered wiper output to replace mechanical potentiome-

ters. An integrated bias generator provides the required

((V

costly external op-amp circuits in unipolar audio applica-

tions. A mode-indicator LED output indicates volume or

balance control. Five integrated LED drivers indicate vol-

ume level or balance settings, depending on the status of

the mode indicator.

Use the MAX5486 digital inputs with momentary con-

tact single-pole/single-throw (SPST) pushbutton switch-

es. Each input includes internal debounced circuitry

and a pullup resistor to V

The MAX5486 advances the wiper setting once per but-

ton push. Maxim’s proprietary SmartWiper™ control

eliminates the need for a microcomputer to increase the

wiper transition rate. The accelerated auto-advance

feature provides a wiper-changing rate at 4Hz for hold-

ing the control input low for more than 250ms and at

8Hz after 500ms and then at 11Hz after 1000ms (see

Table 2).

All of the MAX5486’s pushbutton inputs are debounced.

The mute input allows a single pushbutton to change

between volume control and the -90dB (typ) mute set-

ting. The mode input toggles between volume and bal-

ance control. The click-and-pop suppression feature

minimizes the audible noise generated by wiper transi-

tions. The typical total harmonic distortion plus noise

(THD+N) for the device is 0.003%. The MAX5486 pro-

vides a nominal temperature coefficient of 35ppm/°C

end-to-end and 5ppm/°C ratiometrically and a nominal

resistance of 40kΩ per potentiometer. The MAX5486 is

available in a 24-pin TSSOP package and is specified

for operation over the -40°C to +85°C extended temper-

ature range.

19-0672; Rev 0; 11/06

SmartWiper is a trademark of Maxim Integrated Products, Inc.

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.

+ V

Home-Theater Speakers

Desktop Speakers

Portable Media Players

Docking Stations

Automotive Rear-Seat Multimedia

) / 2) bias voltage, eliminating the need for

________________________________________________________________ Maxim Integrated Products

Stereo Volume Control with Pushbutton

General Description

LOGIC

Applications

♦ Debounced Pushbutton Interface

♦ SmartWiper Control Advances Wiper Rate

♦ Low-Power Wiper Buffers Provide 0.003% THD+N

♦ Bias Generator Eliminates External Op Amps

♦ Five-Segment LED Volume/Balance Indicator

♦ Clickless Switching

♦ Logarithmic Taper Volume Control with (31)

♦ Single +2.7V to +5.5V or Dual ±2.7V Supply

♦ Power-On Reset to -12dBFS Wiper Position

♦ MUTE Function Toggles to 90dB (typ)

♦ Low 1µA Shutdown Supply Current

♦ 40kΩ End-to-End Fixed Resistance Value

♦ Small, 24-Pin TSSOP Package

+ Denotes lead-free package.

1MΩ

MAX5486EUG+

2dB Steps

Voltage Operation

PART

LOGIC

Typical Operating Circuit

GND

LEDIND0

LEDIND1

LEDIND2

LEDIND3

LEDIND4

-40°C to +85°C

TEMP RANGE

MUTE

MAX5486

SHDN

DD +

Ordering Information

UP/BALL DN/BALR

) / 2

LOGIC

MODEIND

MODE

W L

BIASCAP

L R

L L

Interface

PIN-

PACKAGE

24 TSSOP

BIAS

RIGHT INPUT

LEFT INPUT

DD +

PEAK

) / 2

Features

MAX9761

CODE

U24-1

PKG

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