PCM2903CDB by Texas Instruments

The PCM2903CDB is a high-quality, single-chip USB stereo audio codec with USB-compliant full-speed protocol controller and S/PDIF. Manufactured by Texas Instruments, this integrated circuit is designed to provide a simple and efficient solution for USB audio interface applications. It is perfect for applications requiring audio input and output functionalities, such as USB headsets, USB speakers, and USB audio interface boxes.

Key Features:

• Integrated USB Interface: The device includes a full-speed USB protocol controller that is compliant with the USB 1.1 specification. It can also handle audio data formats that comply with the USB Audio Device Class Specification v1.0.
• High-Quality Audio: The PCM2903CDB supports 16-bit stereo audio DAC and ADC, providing high-quality audio conversion with a Signal-to-Noise Ratio (SNR) of 98 dB for DAC and 89 dB for ADC.
• S/PDIF Output: It features a digital audio output with S/PDIF format, offering a direct digital audio output which can be connected to digital audio processors or receivers.
• On-Chip Clock Generation: The device includes an on-chip crystal-referenced phase-locked loop (PLL), which eliminates the need for an external crystal, thus reducing system cost and complexity.
• Flexible Power Supply: The PCM2903CDB operates on a single 5V power supply, typically sourced from the USB bus, making it ideal for bus-powered devices.
• Compatibility: The codec is compatible with various operating systems, including Windows, Mac OS, and Linux, without the need for additional drivers.

Applications:

• USB Audio Stations
• USB Headphones
• Audio Interface Boxes
• Portable Audio Devices
• USB Speakers

Overall, the PCM2903CDB from Texas Instruments represents a robust audio solution that simplifies the design process for developers and enhances the end-user experience with its superior audio quality and ease of integration.