Texas Instruments PCM2705 98dB SNR Stereo USB2.0 FS DAC with line-out and S/PDIF output, Bus/Self-powered (S/W Control) PCM2705DB

The PCM2705DB is a single-chip USB stereo audio DAC from Texas Instruments, designed for applications requiring a USB audio interface. It supports sampling rates of 32, 44.1, and 48 kHz and features a 16-bit delta-sigma DAC architecture. The device includes an on-chip clock generator and a USB interface that complies with USB 1.1 specifications, allowing for easy integration without the need for dedicated device drivers. This DAC provides a single-ended headphone output and an S/PDIF output, making it suitable for various audio applications, including USB audio interface boxes and consumer audio products. It operates on a single power supply, with bus-powered operation at 5 V and self-powered operation at 3.3 V. The PCM2705DB exhibits low total harmonic distortion plus noise (THD+N) of 0.012% at bus-powered conditions and a signal-to-noise ratio (SNR) of 98 dB, ensuring high-quality audio performance. Engineers considering this product should note its compact 28-pin SSOP package, which facilitates space-efficient designs. The device is particularly well-suited for projects that require reliable USB audio functionality with minimal external components.