max5440eagt Maxim Integrated Products, Inc., max5440eagt Datasheet - Page 14

Manufacturer Part Number

max5440eagt

Description

Max5440 Stereo Volume Control With Rotary Encoder Interface

Manufacturer

Maxim Integrated Products, Inc.

Datasheet

1.MAX5440EAGT.pdf (16 pages)

The MAX5440 does not respond to simultaneous button

pushes. Pushing more than one button at the same

time stops the wipers in their present states. Only a sin-

gle button push configures the device.

The Typical Operating Circuit shows the MAX5440 in a

typical volume/balance application using a single-sup-

ply configuration. Figure 6 shows a typical volume/bal-

ance application circuit using the MAX5440 in a

dual-supply configuration. The MAX5440 does not

require external op amps because the bias is generat-

ed internally, and the wipers have internal low-power

buffers for low distortion. Connect the W_ outputs of the

MAX5440 to the left and right inputs of a stereo audio

amplifier, such as the MAX9761. The rotary encoder

controls the potentiometer attenuation levels without

using a microcontroller. Use the MODE input to switch

between volume-control and balance-control modes.

Stereo Volume Control

with Rotary Encoder Interface

______________________________________________________________________________________

Multiple Button Pushes ( MODE , MUTE )

Applications Information

Typical Application Circuit

PROCESS: BiCMOS

Chip Information