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Shunt Mode Audio Click-and-Pop Eliminator

Industry's Newest IC Eliminates Clicks and Pops for Headphone and Line Output in a Small Footprint

Product Details

Key Features

Parametric specs for Click-Pop Suppressors
VSUPPLY (V) (min) 1.7
VSUPPLY (V) (max) 3.6
IQ (mA) (typ) 0.00060
SHDN Yes
# Channels 2
Package/Pins UCSP (R)/6
UDFN/6
Budgetary
Price (See Notes)
0.44
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Simplified Block Diagram

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Parameters

Parametric specs for Click-Pop Suppressors
VSUPPLY (V) (min) 1.7
VSUPPLY (V) (max) 3.6
IQ (mA) (typ) 0.00060
SHDN Yes
# Channels 2
Package/Pins UCSP (R)/6
UDFN/6
Budgetary
Price (See Notes)
0.44

Key Features

  • Distortion-Free, Click-and-Pop Elimination
  • Less than 1µA Supply Current
  • 1.7V to 3.6V Single-Supply Operation
  • Tiny Packages
    • 6-Bump UCSP (1mm x 1.52mm x 0.6mm)
    • 6-Pin µDFN (2mm x 2mm x 0.75mm)

Applications/Uses

  • Mobile Internet Devices
  • Mobile Phones
  • Notebook Computers
  • Portable Gaming Consoles
  • Portable Media Players
  • Smart Phones

Description

The MAX9892 is an audio click-and-pop eliminator for portable multimedia devices. Operating from a 1.7V to 3.6V supply, the MAX9892 connects to the output of the existing system amplifier and provides a low-impedance path to ground during startup and shutdown. The inputs INL and INR accept voltage swings from VDD to 5.5V below VDD. See the Setting the Supply Voltage section in the full data sheet for more information. The power-up and power-down transients are shunted to ground to prevent clicks and pops from becoming audible.

The MAX9892 features two low-impedance analog switches controlled by active-low MUTE that opens and closes the switches. The switches are open during normal operation and have no impact on the output signal. During startup and shutdown of the amplifier, the MAX9892 can be activated to short the outputs to ground and prevent clicks and pops from pulling current through the headphones.

The MAX9892 is available in 6-bump UCSP™ (1mm x 1.52mm x 0.6mm) and 6-pin µDFN (2mm x 2mm x 0.75mm) packages. The MAX9892 is specified over the -40°C to +85°C temperature range.

Simplified Block Diagram

MAX9892: Typical Operating Circuit MAX9892: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .