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.
