Ac21bp Datasheet

The AC21BP (often labeled as AC21BP0C911) is a highly integrated Bluetooth Audio System-on-Chip (SoC) manufactured by Zhuhai Jieli Technology (JL). It is primarily used in cost-effective consumer electronics like Bluetooth speakers, car audio adapters, and multimedia modules. RedditZh-Jieli

Technical Specifications Overview

The AC21BP is part of Jieli's performance-oriented audio series, often serving as a variant of the AC6921A. Reddit

* Processor: 32-bit RISC CPU core.

* Bluetooth: Version 5.0 (Dual-mode: Classic BR/EDR + Low Energy BLE). Reddit

* Audio Features: Integrated high-performance 16-bit DAC and ADC; supports stereo output and formats like MP3, WMA, WAV, FLAC, and APE. RedditEevblog

* Connectivity: USB Host and SD/TF card interface for direct media playback. Reddit

* Package: Typically QSOP-24 or SOP-16. Reddit

Market Trends & Supplier Insights

The market for these chips is driven by the demand for "all-in-one" low-cost Bluetooth audio solutions.

* Manufacturer: Zhuhai Jieli Technology is a dominant player in the budget Bluetooth audio market, known for its high integration which reduces external component count. Reddit

* Sourcing: These chips are widely available through Chinese distributors on B2B platforms like Alibaba.com. They are often sold as part of a Bill of Materials (BOM) service alongside other passive components. AlibabaAlibaba

* Community Support: While official English datasheets are scarce, there is a strong community of developers reverse-engineering these chips (e.g., Jieli-Tech on GitHub), making them popular for hobbyist multimedia projects. RedditGithub

I have identified several verified suppliers who can provide these chips or their functional equivalents (like the AC6921A series). Detailed supplier profiles and product availability are available in the files below.