The present invention relates to digital to analog converters, and especially, but not exclusively, to switched capacitor digital to analog converters (DACs) for digital audio signals.
Audio signals are increasingly stored as digital audio signals on CDs, computer hard-drives and portable music players such as MP3 devices. The stored digital signals are typically stored as a series of digital word samples of the original analog sound. Such digital audio signals need to be converted into corresponding analog signals for application to audio transducers such as loudspeakers and earphones, and often amplification, mixing, switching, or filtering stages as well.
The present invention relates to digital to analog converters, and especially, but not exclusively, to switched capacitor digital to analog converters (DACs) for digital audio signals.Audio signals are increasingly stored as digital audio signals on CDs, computer hard-drives and portable music players such as MP3 devices. The stored digital signals are typically stored as a series of digital word samples of the original analog sound. Such digital audio signals need to be converted into corresponding analog signals for application to audio transducers such as loudspeakers and earphones, and often amplification, mixing, switching, or filtering stages as well.
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