The mobile phone motherboard (also known as the circuit board or PCB) is one of the most core components inside the mobile phone, which bears the function of connecting and supporting the various components and circuits of the mobile phone. The mobile phone motherboard is usually composed of many circuits, and the following are some common mobile phone motherboard circuits:
1. Central Processing Unit (CPU) : The processor unit integrated into the mobile phone on the motherboard is responsible for performing various computing and operational tasks.
2. Memory: Includes memory chips such as RAM (random access memory) and flash memory (for storing operating system and user data).
3. Power management circuit: control battery charging, power distribution and power management.
4. Display interface circuit: Transmit the image signal generated by the processor to the display screen of the mobile phone.
5. Touch screen control circuit: processing touch input signal, users can interact with the phone through the touch screen.
6. Wireless communication module: includes SIM card slot, RF transceiver and antenna to support mobile communication functions such as phone, SMS and data connection.
7. Sensor interface circuit: connect and manage various sensors, such as accelerometers, gyroscopes, compasses, etc.
8. Sound chip and audio interface circuit: used to process sound signals and drive audio devices such as speakers, microphones and headphones.
9. Connectors and slots: used to connect various components, such as cameras, batteries, screens, buttons, etc.
10. Signal regulating circuit: used to regulate and filter electrical signals to ensure normal communication between circuits.
These are just some of the common mobile phone motherboard circuit components, in fact, there may be many other circuit functions on the mobile phone motherboard to support the specific functions and features of various mobile phones. Different phone models and brands may vary, as will the design and configuration.
Mobile phone motherboard is divided into: logic and radio frequency two parts. The logical part includes: CPU, power supply, camera module, MP3 module, font (font is like the hard disk in the computer); The radio frequency part includes: receiving and transmitting. General mobile phone motherboard structure diagram, different brands of different businesses will be different, only for learning reference: