This is a complete low-cost stereo analog to digital converter for digital audio applications. The ADC comprises of a continuous time sigma delta modulator having a multibit quantizer and followed by a programmable OSR decimation filter. The device is fabricated on TSMC 28HPC process where high speed precision analog circuits are combined with high density logic circuits.
18-bit stereo audio ADC
Output data rate 48KHz
I2S digital audio interface
Very low power consumption
Power down mode
Ultra-low area
Linear phase digital filtering
Zero phase error between channels
Applications
Portable audio players
Multimedia phones
Digital cameras
