Low-Power, Stereo Audio Codec with FlexSound Technology

High Integration Frees Up Board Space in Tablets and Netbooks

Please check latest availability status for a specific part variant.


The MAX98089 is a full-featured audio codec with Maxim's FlexSound® digital signal processor. This highly integrated device offers a stereo Class D speaker amplifier, stereo Class H headphone amplifier, a differential receiver amplifier, and up to three differential microphone amplifiers. All in a small WLP or TQFN package.

Class D speaker amplifiers provide efficient amplification for two speakers. Low radiated emissions enable completely filterless operation. Integrated bypass switches optionally connect an external amplifier to the transducer when the Class D amplifiers are disabled.

The IC features a stereo Class H headphone amplifier that utilizes a dual-mode charge pump to maximize efficiency while outputting a ground referenced signal that does not require output coupling capacitors.

The IC also features a mono differential amplifier that can be configured as a stereo line output.

Two differential analog microphone inputs are available, as well as support for two PDM digital microphones. Integrated switches allow for an additional microphone input as well as microphone signals to be routed out to external devices. Two flexible single-ended or differential line inputs may be connected to an FM radio or other sources.

Integrated FlexSound technology improves loudspeaker performance by optimizing signal level and frequency response, while limiting the maximum distortion and power at the output to prevent speaker damage. Automatic gain control (AGC) and a noise gate optimize the signal level of microphone input signals to make best use of the ADC dynamic range.

The device is fully specified over the -40°C to +85°C extended temperature range.

MAX98089: Simplified Block Diagram MAX98089: Simplified Block Diagram Enlarge+

Key Features

  • 5.6mW Power Comsumption (DAC to HP at 97dB DR)
  • 101dB DR Stereo DAC (8kHz < fS < 96kHz)
  • 93dB DR Stereo ADC (8kHz < fS < 96kHz)
  • Stereo, Low-EMI Class D Amplifiers
    • 1.7W/Channel(8Ω, VSPK_VDD = 5.0V)
    • 2.9W/Channel(4Ω, VSPK_VDD = 5.0V)
  • Efficient Class H Headphone Amplifier
  • Differential Receiver Amplifier/Stereo Line Outputs
  • 2 Stereo, Single-Ended/Mono Differential Line Inputs
  • 3 Differential Microphone Inputs
  • FlexSound Technology
    • 5-Band Parametric EQ
    • Automatic Level Control (ALC)
    • Excursion Limiter
    • Speaker Power Limiter
    • Speaker Distortion Limiter
    • Microphone Automatic Gain Control and Noise Gate
  • Dual I²S/PCM/TDM Digital Audio Interfaces
  • Asynchronous Digital Mixing
  • Supports Master Clock Frequencies from 10MHz to 60MHz
  • RF Immune Analog Inputs and Outputs
  • Extensive Click-and-Pop Reduction Circuitry
  • Available in 63-Bump WLP Package (3.80mm x 3.30mm, 0.4mm Pitch) and 56-Pin TQFN Package (7mm x 7mm x 0.75mm)


  • Ideal for any product (e.g., tablets, netbooks, smartbooks) that uses a codec, but cannot afford to use higher cost HDI (high density) PCBs.

See parametric specs for Audio Data Converters (6)

Part NumberFunctionsVSUPPLY
Bit DepthSample Rate
Bit DepthSample Rate
MAX98089 Audio CODEC
1.65 (Analog)
1.65 (Digital)
2.0 (Analog)
3.6 (Digital)
1.9 (Playback)2293248 to 96101248 to 960.4
Audio - I2S
Serial - I2C
$2.08 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX98089EVKIT#WLP: Evaluation Kit for the MAX98089 (WLP)
MAX98089EVKIT#TQFN: Evaluation Kit for the MAX98089 (TQFN)
Product Reliability Reports: MAX98089.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >


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