GENERAL DESCRIPTION
The PA4401 provides click-pop suppression for devices that lack a click-less/pop-less startup or shutdown. The PA4401 is placed between the codec and the output coupling capacitor.
The click-pop noise is generated at the coupling capacitors while the system is starting up as well as shutting down. The PA4401 controls the ramping of the DC voltage into the coupling capacitors thus reducing the click-pop noise generated during the startup and shutdown. The start time can be controlled or changed using an external capacitor.

FEATURES
   9V or 12V operation
   3V RMS Capability
   Power-Up and Power-Down “POP” suppression
   ESD protected outputs
   8-Lead SOIC package
   Series operation
   Only 1 external component required
   Ron (On resistance): 0.8 ohms
   Ron Flatness: 0.4 ohms
   Total Harmonic Distortion: <1%
   Current drain: <5mA
   Load: 600 ohms

APPLICATIONS
   Portable DVD players
   Set-top boxes
   Car Audio
   High End Audio
   Televisions
   Stereo Systems
   Digital Video Recorders
   LCD TVs
   Home Theater systems