The AD12250A converts a stereo single-ended analog input signal into 24-bit I²S digital audio data through an on-chip antialiasing filter, multibit sigma-delta modulator, decimation filter, and high-pass filter to remove dc offset. The AD12250A supports sampling frequencies from 8 kHz to 96 kHz and provides a system clock mode of operation of 128 Fs, 256 Fs, 384 Fs, or 512 Fs depending on the sampling frequency and master/slave mode selection. The AD12250A is suitable for digital audio media applications requiring high performance A/D conversion and low system cost.
Features
24-bit I²S audio data format output
Analog and digital single supply 3.3 V
Single-ended analog input with internal anti-aliasing filter
Signal-to-noise ratio: 98 dB (A-weighted)
DR: 99 dB (A-weighted)
Total harmonic distortion: -91dB
Master/Slave mode selection
Multiple sampling frequency (Fs): 8~96 kHz
System clock: 128 Fs, 256 Fs, 384 Fs, 512 Fs
Power-down function
Internal PLL
16-pin TSSOP package
Applications
DVD Recorders
CD Recorders
MD Players
Hard Disk Players
A/V Receivers
Personal Video Recorders Musical
Instruments
Car Audio Applications