What is the circuit diagram of Bluetooth headset charging lithium battery?

　　As more and more mobile phones support the Bluetooth function, Bluetooth headsets have become a must-have option for mobile phones. The power management design of the Bluetooth headset requires few peripheral components and high integration, while meeting the requirements of the Bluetooth chip for load response and noise suppression.

　　As more and more mobile phones support the Bluetooth function, Bluetooth headsets have become a must-have option for mobile phones. The power management design of the Bluetooth headset requires few peripheral components and high integration, while meeting the requirements of the Bluetooth chip for load response and noise suppression. Wireless stereo headsets have become popular products. At the same time, with the introduction of stereo Bluetooth headsets that support MP3 playback, Bluetooth headsets can be connected to Bluetooth mobile phones and music players at the same time, which will surely bring new highlights to Bluetooth applications.

　　The core of the Bluetooth headset is the radio frequency and baseband processing. In order to adapt to the integration of functions and the miniaturization of design, companies such as CSR and Broadcom have integrated the radio frequency and baseband processing functions. For example, the CSRBlueCore4 highly integrated Bluetooth chip has the smallest package. 6&TImes;6mm. The power management design of the entire headset requires few peripheral components, high integration, and at the same time meets the Bluetooth chip's requirements for load response and noise suppression.