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AB5756C is a high-performance Bluetooth audio chip designed specifically for open-ear headphones, supporting the Bluetooth 6.0 protocol. It is manufactured using a 40nm ULP process and features high performance, low power consumption, and excellent audio performance, providing stable and reliable wireless connectivity and high-quality audio experiences for open-ear headphones and other audio devices.

Product Features — AB5756C

High-Performance Processor: Built-in 32-bit RISC-V processor with DSP instruction extensions, operating at 120MHz, enabling efficient processing of audio algorithms.

Low-Power Design: Utilises advanced process technology and optimised power management to extend the battery life of open-ear headphones.

Rich Storage Resources: Features 1Mbit of built-in flash memory for storing programs and 113KB of internal RAM to meet the needs of various audio applications.

Multiple audio interfaces: Integrated 16-bit mono DAC and ADC, supporting flexible audio equalisation adjustments, and compatible with various sampling rates, including 8, 11.025, 12, 16, 22.05, 32, 44.1, and 48kHz. Built-in high-performance mono audio ADC (95dB SNR) and DAC (107dB SNR), supporting single-ended, differential, and VCMBUF modes.

Bluetooth 6.0 technology: Compliant with the Bluetooth 6.0 protocol, with excellent RF performance, a maximum TX output power of +10dBm, and RX sensitivity of -91dBm at the base rate and -94dBm in EDR mode, ensuring stable and reliable wireless connectivity.

Flexible GPIO configuration: Flexible GPIO pins with programmable pull-up and pull-down resistors, supporting GPIO wake-up or interrupt functionality.

Product specifications — AB5756C

CPU: 32-bit RISC-V processor, operating at 120MHz

Storage: 1Mbit built-in flash memory, 113KB internal RAM

GPIO: Flexible GPIO pins with programmable pull-up and pull-down resistors, supporting GPIO wake-up or interrupt functionality

Bluetooth: Compliant with Bluetooth 6.0 protocol, TX maximum output power +10dBm, RX sensitivity -91dBm (base rate), -94dBm (EDR)

Audio: 16-bit mono DAC and ADC, supporting sampling rates including 8, 11.025, 12, 16, 22.05, 32, 44.1, and 48 kHz; high-performance mono audio ADC (95 dB SNR), DAC (107 dB SNR), supporting single-ended, differential, and VCMBUF modes

Package: QFN20 3×3  

Operating temperature: -40°C to +85°C  

Storage temperature: -65°C to +150°C  

Applications  

The AB5756C is primarily used in open-back headphones and can also be applied to TWS Bluetooth headphones, over-ear headphones, Bluetooth speakers, music glasses, and other audio-related products.

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

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