Complete low-cost stereo digital to analog converter for audio applications. The DAC comprises of digital interpolating filters, a third order single loop multibit sigma delta DAC, followed by a continuous time reconstruction filter. The device is fabricated on TSMC 28nm process where high precision analog circuits are combined with high-density logic circuits.
24-bit stereo audio DAC
Audio interface is serial I2s
I2S digital audio interface
Soft power up/down mode
Ultra-low area
Linear phase digital filtering
Zero phase error between channels
Low clock jitter sensitivity
Analog filter: continuous time
Applications
Portable audio players
Multimedia phones
Digital cameras
