View tda1549 datasheet:

INTEGRATED CIRCUITS DATA SHEET TDA1549T Stereo 4fs data input up-sampling filter with bitstream continuous calibration DAC (BCC-DAC1) August 1994 Objective specification File under Integrated Circuits, IC01 Philips Semiconductors Philips Semiconductors Objective specification Stereo 4fs data input up-sampling filter with TDA1549T bitstream continuous calibration DAC (BCC-DAC1) FEATURES • Easy application • Finite-duration impulse-response (FIR) filtering and noise shaping incorporated • 2nd-order noise shaper • Wide dynamic range (true 18-bit resolution) • Low total harmonic distortion • No zero-crossing distortion filtering is required. The circuit accepts 18-bit four times • Superior signal-to-noise ratio oversampled input data (4fs) in standard Japanese format.