MP3 machine CPU and decoder chip circuit using SPCA7550 chip
Source: InternetPublisher:smallembedded Keywords: CPU MP3 decoder chip circuit Updated: 2020/08/11
Shown is the CPU and decoder circuit of the MP3 machine using the SPCA7550 chip . The circles mark
the installation positions of the electronic components on both sides of the circuit board in the lffl-3 machine. SPC7550 is a very large-scale integrated circuit that integrates digital signal processing circuits and microprocessor circuits
. It is connected to peripheral circuits through pins and is the core circuit in MP3
.
The operation buttons are connected to the CPU and decoding chip to input manual instructions to the CPU and decoding chip: the USB interface provides data signals to the CPU and decoding chip ; the
microphone and line input are connected to the external memory for data access: the LCD display interface provides the display screen driving signal.
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