In recent years, the market demand for mini Bluetooth speakers has been growing day by day. Its lightweight, stylish appearance and convenient wireless connection are deeply loved by consumers. This article will analyze the circuit diagram of the mini Bluetooth speaker in detail, recommend related high-quality chips, and hope to help speaker manufacturers purchase or engineers.
Mini Bluetooth speaker circuit diagram analysis
The circuit diagram of the mini Bluetooth speaker mainly consists of the following parts: Bluetooth chip, audio processing chip, battery management chip and power module.
1. Bluetooth chip: Mainly responsible for sending and receiving Bluetooth signals and transmitting audio signals to Bluetooth speakers. Common Bluetooth chip brands include CSR, Broadcom, China Microelectronics, etc.
2. Audio processing chip: mainly used for audio signal processing, including decoding, amplification, etc. Common audio processing chips include Wolfson, Cirrus Logic, China Microelectronics, etc.
3. Battery management chip: Mainly responsible for battery charging and power management to ensure the battery life of the speaker. Common battery management chip brands include Linear, TI, Zhongwei Aixin, Zhongkexin, etc.
4. Power module: Responsible for converting battery energy into various voltages required by the circuit to ensure the normal operation of the circuit.
When designing the circuit diagram, it is necessary to consider the connection method and signal transmission between the chips, and also pay attention to the stability and anti-interference of the power module. Reasonable circuit layout and routing can improve the performance and stability of the speaker.
Recommended chips related to mini Bluetooth speakers
In the mini Bluetooth speaker circuit diagram design, choosing the right chip is crucial. The following are recommendations for several mini Bluetooth speaker chips that are well-received on the market:
1. TI TPA3116D2 chip: TI TPA3116D2 chip is an efficient stereo audio power amplifier chip, suitable for the audio amplification circuit design of mini Bluetooth speakers. The chip features low distortion, high efficiency and good stability.
2. CSR8670 chip: The CSR8670 chip is a single-chip solution that integrates Bluetooth and audio processing functions. It is suitable for the Bluetooth module design of mini Bluetooth speakers. The chip has high Bluetooth transmission speed and stability.
3. TI BQ24075 chip: TI BQ24075 chip is a chip that integrates battery charging and power management functions. It is suitable for the power management circuit design of mini Bluetooth speakers. The chip has high charging efficiency and protection functions.
case analysis
Take a mini Bluetooth speaker based on TI TPA3116D2 and CSR8670 chips as an example. The speaker's circuit diagram design has received good feedback from the market.
The audio amplification circuit of this mini Bluetooth speaker uses TI TPA3116D2 chip, which has high audio amplification performance and low distortion characteristics. Through reasonable circuit design and configuration, clear and high-fidelity audio output is achieved.
At the same time, the Bluetooth module of this mini Bluetooth speaker uses the CSR8670 chip, which has high Bluetooth transmission speed and stability. Through sophisticated Bluetooth connection configuration, stable and reliable wireless audio transmission is achieved.
Mini Bluetooth speaker circuit diagram design is the key to achieving high-quality audio output and stable wireless transmission. Through reasonable chip selection and sophisticated design, the excellent audio performance and portability of the mini Bluetooth speaker can be achieved. In the market, chips from manufacturers such as TI and CSR have high performance and reliability, and are excellent choices for mini Bluetooth speaker circuit diagram design.