Texas Instruments PCM1681-Q1 105dB SNR 8-Channel Audio DAC (Automotive Catalog) PCM1681TPWPRQ1G4

The PCM1681-Q1 is an 8-channel audio digital-to-analog converter (DAC) designed for automotive applications, featuring a 24-bit resolution and a typical signal-to-noise ratio (SNR) of 105 dB. It supports sampling frequencies ranging from 5 kHz to 200 kHz and utilizes an enhanced multilevel delta-sigma architecture to achieve high audio performance with low total harmonic distortion plus noise (THD+N) of 0.002%. The device operates with a power supply voltage of 5 V for analog and 3.3 V for digital circuits, and it is housed in a compact 28-lead HTSSOP PowerPAD package. The PCM1681-Q1 is qualified for automotive use, with an operating temperature range of -40°C to 105°C, making it suitable for demanding environments. It supports various audio data formats, including I¬=S and TDM, and offers user-programmable functions through both serial (SPI/I²C) and parallel control interfaces. The device also features digital attenuation, soft mute, and digital de-emphasis capabilities, enhancing its versatility for integration into automotive audio systems.