MFi Audio Accessories

Audio streaming solution for Lightning-connected MFi accessories

Powered by the MFA100 digital audio streaming device, the MFA100 development kit includes everything you need to build audio streaming accessories for the latest generation of Apple iPod, iPhone, and iPad devices.


Key features and benefits

  •  USB (Full Speed) to I2S audio
  • Audio Class 1 support
    o 16-bit and 24-bit stereo audio resolution
    o 44.1 kHz and 48 kHz output sampling rates
  • Support for remote control buttons
  • Battery charging control with fault detection
  • Support for iAP2 accessory protocol
  • Supports Apple MFi-approved components through the Avnet MFi website
  • QFN package (size: 5 x 5 mm, pitch: 0.5 mm) supports two-layer board design

Target applications

  • Lightning-connected speaker docks
  • Lightning-connected headphones

Apple, iPod, iPhone and iPad are trademarks of Apple Inc., registered in the U.S. and other countries. Lightning is a trademark of Apple Inc.


Our development kit for MFi accessories is a complete solution that includes audio streaming, battery charging, and remote button control functions. It simplifies design-in and can reduce development time by as much as half a year.

MFA100 device

The NXP MFA100 is a highly integrated digital audio streaming device that provides USB-to-I2S audio streaming for Lightning-connected MFi (Made for iPod/iPhone/iPad) accessories and manages key functions such as battery charging, and remote button control. It provides all the necessary functions for building Lightning-connected speaker docks and headphones.

MFA100 development kit

Comprised of an MFA100 audio board and an MFA100 button board, along with a user guide, bill of materials, and schematics, the kit is available for purchase by licensed MFI vendors only through the Avnet MFi website.

MFA100 audio board features

  • Apple Lightning (C10 or C11) connector interface (connector not included)
  • 3.5 mm stereo audio headphone out jack
  • 3.5 mm stereo audio line out jack
  • NXP MFA100 audio streaming device
  • Wolfson WM8904 audio codec
  • Apple MFi device
  • Micro USB (B-type) connector for charging iPod, iPad, or iPhone through Lightning connector
  • Powered through Lightning connector

MFA100 button board features

  • Ribbon cable connection to MFA100 audio board
  • 14 buttons for remote control:
    • On/off
    • Play, pause, play/pause
    • Mute, volume up, volume down
    • Reverse, forward
    • Tracking+, tracking-, tracking normal
    • Shuffle, repeat

Apple, iPod, iPhone and iPad are trademarks of Apple Inc., registered in the U.S. and other countries. Lightning is a trademark of Apple Inc.

Documentation for this application

File nameTitleTypeFormatDate
75017397NXP digital audio streaming device MFA100 and development kit (1.0)Leafletpdf2013-05-22

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