MAX5440EAG+T Maxim Integrated Products, MAX5440EAG+T Datasheet - Page 14

• Manufacturer Part Number: MAX5440EAG+T
• Description: IC CNTRL VOL STEREO 24-SSOP
• Manufacturer: Maxim Integrated Products
• Type: Stereo Audio Volume Controlr

Specifications of MAX5440EAG+T

• Applications: Automotive Systems, Desktop Audio, Set-Top Boxes
• Mounting Type: Surface Mount
• Package / Case: 24-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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
14
______________________________________________________________________________________
Multiple Button Pushes ( MODE , MUTE )
Applications Information
Typical Application Circuit
PROCESS: BiCMOS
Chip Information