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General Description

AB1526 is an advanced single-chip solution which integrates baseband and radio for intensive audio applications. It is Bluetooth 4.2 dual mode certified and supports wide band speech which is defined at HFP1.6, AAC decoder, and 2-Mic for better noise reduction and echo cancellation performance. AB1526 embeds serial flash which is more flexible for customer SW upgrading and 3rd party SW porting is supported. With optimized MCU structure, interface arrangement and better DSP algorithm, AB1526 provides higher performance and crystal voice and music quality in most of the Bluetooth audio application like Headset and Headphone. With very small BGA package type and only a few outside components, AB1526 can fit the ultra-small type headset application. AB1526 supports “AiroStereo” which two speakers can connect to each other, play left channel in one speaker and play right channel in another speaker as a wireless stereo system. AiroStereo can let end users have great stereo experience without wire connection. AB1526 also supports “ AiroShare” which can relay the music from one audio device to another device wirelessly that users can easily share the music from the same audio source.


  • BT 4.2 dual mode including low energy profiles
  • Support EDR function
  • A2DP profile version 1.3 compliant
  • HFP profile version 1.6 compliant
  • HSP profile version 1.2 compliant
  • AVRCP profile version 1.5 compliant
  • SPP profile version 1.2 compliant
  • Multipoint for HFP and A2DP
  • Embedded 96MIPS dual-MAC DSP coprocessor
  • 2-Mic Noise reduction and Echo cancellation
  • Programmable EQ
  • Support Packet loss concealment
  • Support Wide band speech, wide band voice prompt and customized voice prompt
  • Support Voice command
  • Support AAC_LC decoder
  • Support AiroStereo. AiroShare.
  • Support iOS and Android APP
  • Support over the air update
  • Build in Battery service, proximity profiles
  • Integrated Li-ion battery charger supports 250mA fast charging and over-discharging protection


  • Stereo headset
  • AiroStereo headsets
  • Stereo headphone
  • AiroShare headphones