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General Description

AB1520 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 1-Mic for standard noise reduction and echo cancellation performance. AB1520 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, AB1520 provides higher performance and crystal voice and music quality in most of the Bluetooth audio application such as Headset, Headphone, Speaker and Sound bar systems.


  • 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
  • 1-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 AAC_LC decoder
  • Build in Battery service, proximity profiles
  • Integrated Li-ion battery charger supports 700mA fast charging and over-discharging protection
  • Integrated 1.25V/1.8V Buck and 3V/1.8V LDO regulator
  • Support AiroStereo. AirohaShare
  • Support iOS and Android APP


  • Wireless speaker
  • Sound bar systems
  • Bluetooth car kit