Overview

Features and Benefits

  • 36dB Click-Pop Suppression
  • 2.7V to 5.5V Single-Supply Operation
  • Clickless/Popless Startup/Power-Up and Shutdown/Power-Down
  • 0.001µA Low-Power Shutdown Mode
  • THD+N < 0.003% Into 32Ω
  • ±8kV ESD Protected Outputs (Human Body Model)
  • Requires Only One 0.1µF Capacitor to Complete the Circuit
  • Low 14µA Supply Current
  • Tiny Packaging
    • 9-Bump UCSP (1.5mm x 1.5mm x 0.6mm)
    • 8-Pin TDFN (3mm x 3mm x 0.8mm)

Product Details

The MAX9890 provides click-and-pop suppression for devices such as CODECs with integrated headphone amplifiers that lack a clickless/popless startup/power-up or shutdown/power-down. The device controls the ramping of the DC bias voltage on the output-coupling capacitors and the application of the audio signal to ensure that no audible transients are present at the headphones. The MAX9890A features a 200ms startup time for use with up to 100µF coupling capacitors. The MAX9890B features a 330ms startup time for use with greater than 100µF coupling capacitors.

The MAX9890 consumes 14µA of supply current and 0.001µA in shutdown, while contributing less than 0.003% THD+N into a 32Ω load. ESD (Human Body Model) protection circuitry on the outputs protect the MAX9890 and devices further up the signal chain from ESD strikes up to ±8kV.

The MAX9890 is available in a miniature (1.5mm x 1.5mm x 0.6mm) 9-bump chip-scale package (UCSP™), as well as an 8-pin TDFN package (3mm x 3mm x 0.8mm), and is specified for operation over the -40°C to +85°C extended temperature range.

Applications

  • Cell Phones
  • High-End Notebook Audio
  • PDAs
  • Portable DVD Players
  • Portable MP3 Players

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.