Features and Benefits

  • Single-Supply Operation (2.5V to 5.5V) for the MAX98363A/B
  • 3.2W Output Power into 4Ω at 5V, THD+N = 10%
  • 12.3mW Quiescent Power with External DVDDIO
  • MIPI SoundWire v1.2 Compliant
  • Programmable Slew-Rate on SoundWire Data Output to Help Minimize EMI
  • 92% Efficiency (RL = 8Ω, THD+N = 10%)
  • 12.8μVRMS Output Noise
  • 108.5dB Dynamic Range
  • Low 0.014% THD+N at 1kHz
  • Sophisticated Edge-Rate Control Enables Filterless Class D Outputs
  • 82dB PSRR at 217Hz
  • Low RF Susceptibility Rejects TDMA Noise from GSM Radios
  • Class D Switching Frequency Trimmed to 5% for Better EMI Planning
  • Extensive Click-and-Pop Reduction Circuitry
  • Robust Short-Circuit and Thermal Protection
  • Internal Tone Generator for In-Factory Testing
  • Available in Space-Saving Package: 9-Bump WLP (1.528mm x 1.528mm, 0.4mm Pitch)

Product Details

The MAX98363 is a tiny, low-cost, SoundWire® input Class D mono amplifier that provides industry-leading, Class AB audio performance with Class D efficiency. The device features an internal tone generator, interrupt control, and selectable slew-time settings for SoundWire data output PHY. A novel pinout allows customers to use the cost-effective wafer-level package (WLP) with no need for expensive in-pad vias.

The MAX98363 is a SoundWire peripheral device that supports MIPI SoundWire v1.2-compatible digital interface for audio and control data. The digital interface is highly flexible and supports a variety of input clock frequencies. Also, selectable slew-time controls on the SoundWire data output PHY help minimize EMI on a range of capacitive bus loads. The digital interface operates on 1.8V nominal voltage supply which can be either supplied externally, or generated by an internal LDO.

An internal tone generator, with a variety of frequency options, supports in-factory testing or system boot-up sounds during system power-up. An externally configurable address pin allows up to five unique SoundWire addresses for each device part number. The MAX98363A/B operate with DVDDIO supplied with internal LDO and can support up to 10 MAX98363 SoundWire peripheral devices on one data lane. The MAX98363C/D operate with externally supplied DVDDIO and support up to 10 MAX98363 SoundWire peripheral devices on one data lane.

Active emissions-limiting, edge-rate limiting, and overshoot control circuitry greatly reduce EMI. A filterless spread-spectrum modulation scheme eliminates the need for output filtering found in traditional Class D devices and reduces the component count of the solution.

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


  • Notebook Computers
  • Tablets
  • IoT Devices
  • Gaming Devices (Audio and Haptics)
  • Smart Speakers
  • Smartphones
  • Single Li-ion Cell/5V Devices

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

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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.