GENERAL DESCRIPTION

The TDA1546T is the first Bitstream Continuous Calibration digital-to-analog converter (BCC-DAC) to feature unique signal processing functions. In addition to the basic functions of digital filtering and digital-to-analog conversion, it offers such advanced digital signal processing functions as volume control, tone control, bass boost, peak or spectrum analyzer readout and many more convenient functions. The digital processing features are of high sound quality due to the wide dynamic range of the bitstream conversion technique.

FEATURES

1.1 Easy application

• Voltage output 1.5 V (RMS)

• Operational amplifiers and cascaded 4-stage digital FIR filter integrated

• Master and slave mode clock system with selectable system clock (fsys) 256fs or 384fs

• I2S-bus serial input format or Japanese 16, 18 or 20 bits serial input mode

• All features are accessible under remote control

• Simple 3-line serial microcontroller command interface

• Power-on reset

• 28 lead small outline package.

1.2 High performance

• Superior signal-to-noise ratio

• Low total harmonic distortion

• Wide dynamic range

• No zero crossing distortion

• Continuous calibration digital-to-analog conversion combined with noise shaping techniques

• Second-order noise shaper

• 128 times oversampling in normal-speed mode

• 64 times oversampling in double-speed mode.

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