TDA1305T Datasheet(PDF) |
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GENERAL DESCRIPTION The TDA1305T is a new generation of filter-DAC which features a unique combination of bitstream and continuous calibration techniques. The converter functions as a bitstream converter for low signals while large signals are generated using the dynamic continuous calibration technique, thus resulting in low power consumption, small chip size and easy application. FEATURES • Easy application • 16fs Finite-duration Impulse-Response (FIR) filter incorporated • Selectable system clock (fsys) 256fsor 384fs • I2S-bus serial input format (at fsys= 256fs) or LSB fixed 16, 18 or 20 bits serial input mode (at fsys= 384fs) • Slave-mode clock system • Cascaded 4-stage digital filter incorporating 2-stage FIR filter, linear interpolator and sample-and-hold • Smoothed transitions before and after muting (soft mute) • Digital de-emphasis filter for three sampling rates of 32 kHz, 44.1 kHz and 48 kHz • 12 dB attenuation via the attenuation input control • Double speed mode • 2nd order noise shaper • 96 (fsys= 384fs) or 128 (fsys= 256fs) times oversampling in normal speed mode • 48 (fsys= 384fs) or 64 (fsys= 256fs) times oversampling in double speed mode • Bitstream continuous calibration concept • Small outline SO28 package • Voltage output 1.5 V (RMS) at line drive level • Low total harmonic distortion • No zero crossing distortion • Inherently monotonic • No analog post filtering required • Superior signal-to-noise ratio • Wide dynamic range (18-bit) • Single rail supply (3.4 to 5.5 V). |
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