PCM1864DBTR – TEXAS INSTRUMENTS

The Texas Instruments PCM1864DBTR is a high-performance, stereo, 24-bit digital-to-analog converter (DAC) housed in a 28-pin TSSOP package. Operating from a single 3.3V supply, it features a typical output voltage swing of ±2V, achieving a high signal-to-noise ratio (SNR) exceeding 110dB and a total harmonic distortion plus noise (THD+N) below -90dB. Its inherent low jitter architecture, facilitated by a multi-bit sigma-delta modulation process, ensures exceptional audio fidelity. The PCM1864DBTR integrates a built-in digital filter with selectable characteristics, allowing for precise shaping of the output signal. It supports sampling rates up to 192kHz, making it suitable for high-resolution audio applications._x000D_
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Common use cases include professional audio equipment, high-fidelity consumer electronics, and industrial measurement systems requiring accurate analog output from digital sources. Its advantages stem from its excellent dynamic range, low distortion, and flexibility in digital filtering. The single-supply operation simplifies power management, while the compact TSSOP package facilitates efficient PCB layout. However, designers should note its sensitivity to power supply noise and the need for appropriate decoupling capacitors for optimal performance. The device’s integrated features minimize external component count, resulting in a cost-effective and space-saving solution.