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  4. MAX9860


Features and Benefits

  • 1.8V Single-Supply Operation
  • Digital Highpass Elliptical Filters with Notch for 217Hz (GSM)
  • Mono 30mW BTL Headphone Amplifier
  • Dual Low-Noise Microphone Inputs
  • Automatic Microphone Gain Control and Noise Gate
  • 90dB DAC DR (fS = 48kHz)
  • 81dB ADC DR (fS = 48kHz)
  • Supports Master Clock Frequencies from 10MHz to 60MHz
  • Supports Sample Rates from 8kHz to 48kHz
  • Flexible Digital Audio Interface
  • Clickless/Popless Operation
  • 2-Wire, I²C-Compatible Control Interface
  • Available in 24-Pin, Thin QFN, 4mm x 4mm x 0.8mm Package

Product Details

The MAX9860 is a low-power, voiceband, mono audio codec designed to provide a complete audio solution for wireless voice headsets and other mono voice audio devices. Using an on-chip bridge-tied load mono headphone amplifier, the MAX9860 can output 30mW into a 32Ω earpiece while operating from a single 1.8V power supply. Very low power consumption makes it an ideal choice for battery-powered applications.

The MAX9860's flexible clocking circuitry utilizes common system clock frequencies ranging from 10MHz to 60MHz, eliminating the need for an external PLL and multiple crystal oscillators. Both the ADC and DAC support sample rates of 8kHz to 48kHz in either synchronous or asynchronous operation. Both master and slave timing modes are supported.

Two differential microphone inputs are available with a user-programmable preamplifier and programmable gain amplifier. Automatic gain control with selectable attack/release times and signal threshold allows maximum dynamic range. A noise gate with selectable threshold provides a means to quiet the channel when no signal is present. Both the DAC and ADC digital filters provide full attenuation for out-of-band signals as well as a 5th order GSM-compliant digital highpass filter. A digital side tone mixer provides loopback of the microphones/ADC signal to the DAC/headphone output.

Serial DAC and ADC data is transferred over a flexible digital I²S-compatible interface that also supports TDM mode. Mode settings, volume control, and shutdown are programmed through a 2-wire, I²C-compatible interface.

The MAX9860 is fully specified over the -40°C to +85°C extended temperature range and is available in a low-profile, 4mm x 4mm, 24-pin thin QFN package.

Request S/W Drivers


  • Audio Accessories
  • Audio Headsets
  • Mobile Phones
  • Portable Navigation Device
  • Smart Phones
  • VoIP Phones

Product Categories

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.

Evaluation Kits (1)

Tools & Simulations

Software Development

Product Recommendations

MAX9860 Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
MAX9860ETG+ Material Declaration Reliability Data 24-TQFN-4X4X0.75
MAX9860ETG+T Material Declaration Reliability Data 24-TQFN-4X4X0.75
Wafer Fabrication Data MAX9860 Reliability Data

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Evaluation Boards

Pricing displayed is based on 1-piece.

Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.

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.