The PCM2904DBR is a high-quality, single-chip USB stereo audio codec with USB-compliant full-speed protocol controller and S/PDIF from Texas Instruments. This device is designed to provide an all-in-one solution for converting analog audio to digital form and vice versa, making it an ideal choice for a range of audio applications, including USB headsets, audio interface boxes, and speaker systems.

Key Features

• Integrated USB Interface: The codec features a full-speed USB interface that complies with the USB 1.1 specification, ensuring broad compatibility with a variety of devices and systems.
• High-Quality Audio: With 16-bit Delta-Sigma ADC and DAC, the PCM2904DBR provides excellent audio performance with a dynamic range of 89 dB and THD+N of 0.06%.
• S/PDIF Output: The device includes a S/PDIF output that supports 44.1 kHz and 48 kHz sampling rates, allowing digital audio to be transmitted over optical or coaxial connections.
• Bus-Powered Operation: The PCM2904DBR can be powered directly from the USB bus, eliminating the need for external power supplies and simplifying system design.
• Plug and Play: Thanks to its USB compliance, the codec supports plug-and-play operation, with no need for additional drivers when used with most modern operating systems.

Applications

• USB Audio Stations
• Multimedia Speakers
• Audio Interface Boxes
• USB Headsets and Microphones

Technical Specifications

Parameter Value Resolution 16-Bit Interface USB, S/PDIF Sampling Rate 32 kHz, 44.1 kHz, 48 kHz Dynamic Range 89 dB THD+N 0.06%

Overall, the Texas Instruments PCM2904DBR codec is a versatile and easy-to-integrate solution for high-quality audio data transfer over USB. Its robust feature set and plug-and-play functionality make it a great choice for developers and product designers looking to enhance the audio capabilities of their USB-enabled devices.