TDA1549T is a stereo audio integrated circuit with 4fs data input up-sampling filter and bitstream continuous calibration DAC (BCC-DAC1) functions. It features easy application, finite-duration impulse-response filtering and noise shaping, wide dynamic range, low total harmonic distortion, no zero-crossing distortion, superior signal-to-noise ratio, etc.
The Philips TDA1549T is an integrated circuit designed as a digital-to-analog converter featuring a unique combination of bitstream and continuous calibration concepts. It accepts 18-bit four times oversampled input data in standard Japanese format and incorporates internal FIR filtering, high oversampling, and second-order noise shaping to ensure simple analog post-filtering requirements.
| Digital supply voltage (VDDD) | 3.8 to 5.5 V |
|---|---|
| Analog supply voltage (VDDA) | 3.8 to 5.5 V |
| Full-scale output voltage (RMS) | 1.425 to 1.575 V |
| Total harmonic distortion plus noise-to-signal ratio | -90 to -83 dB at 0 dB signal level |
| Signal-to-noise ratio (A-weighted) | 100 to 110 dB |
| Operating ambient temperature | -30 to +85 °C |