❀ The ADAU1401 is a complete single-chip with built-in 28/56-bit SP, ADC, AC and microcontroller-like control interface. Signal processing techniques including equalization, crossover, bass , multi-band ynamic processing, elay compensation, speaker compensation, and stereo widening can be used to for the practical limitations of speakers, amplifiers, and listening environments, ramatically improving the sound quality experience. ❀ This edition is suitable for ADAU1401/1701/1702 learning and product use. The ADAU1401 is more stable than the ADAU1701 in the harsh working environment of -40°-105° (the ADAU1701 is generally 0-70°). The program can be used ly and other indicators are the same. ❀ The ADAU1401 program can be loaded from the EEPROM through its self-booting mechanism at power-up or from an external microcontroller. When turned , the current state of the parameter can be written back to the EEPROM from the ADAU1401 to be recalled the next time the program is run. ❀ Two ADCs and four ACs provide 98.5 B of analog input to analog output ynamic . Seamless connection to other ADCs and ACs is possible with igital input and output ports. The ADAU1401 communicates over an I2C bus or a four-wire SPI port. ❀ It has self-starting after power-on and can be completely separated from the single-chip . Leads to all function ports, which can expand igital I2S input/output/key function/LED rive/auxiliary ADC (potentiometer analog)/ adjustment.