... use several LDO, respectively offer power for: crystal oscillator, the main chip, the digital output chip, DAC digital, DAC analog, ... long service life.Provide a professional balance charger for models for the rechargeable lithium balance charge, which reduces the ... is very convenient. Digital output chip: CS8406.DAC Chip: Wolfson WM8740.LVP: AD8656.Headphone Amp chip: AD8397.Digital Output: Coaxial ( ...