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Bluetooth> Audio>AB1522S
AB1522S is an advanced single-chip solution which integrates baseband and radio for intensive audio applications. It is Bluetooth 5.0 certified and supports wide band speech which is defined at HFP1.7, AAC decoder, and 1-Mic for standard noise reduction and echo cancellation performance. AB1522S embeds serial flash which is more flexible for customer SW upgrading. With optimized MCU structure, interface arrangement and better DSP algorithm, AB1522S provides higher performance and crystal voice and music quality for Bluetooth headset application.


  • Compliant with Bluetooth 5.0 specification
  • Support EDR function
  • A2DP profile version 1.3 compliant
  • HFP profile version 1.7 compliant
  • HSP profile version 1.2 compliant
  • AVRCP profile version 1.6 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
  • Integrated Li-ion battery charger supports 400mA fast charging and over-discharging protection
  • Integrated 1.8V Buck and 3V /1.25V LDO regulator


  • Stereo headsets
  • Stereo headphones


  • QFN, 5mm*5mm, 40-lead, 0.4mm pitch