Texas Instruments

PCM2904DBR

PCM2904DBR Description

The PCM2904DBR is a high-performance stereo audio codec with USB interface, designed by Texas Instruments. This device is ideal for applications requiring high-quality audio processing and ease of integration. The PCM2904DBR features a dynamic range of 89 dB for ADCs and 93 dB for DACs, ensuring clear and detailed audio performance. It operates with a supply voltage range of 4.35V to 5.25V for both digital and analog sections, making it suitable for a variety of power supply configurations.

The PCM2904DBR includes two ADCs and two DACs, each offering a resolution of 16 bits, which is essential for high-fidelity audio applications. The device employs Sigma Delta modulation, enhancing its signal-to-noise ratio (SNR) to 89 dB for ADCs and 96 dB for DACs, resulting in superior audio clarity. The data interface is USB, simplifying connectivity and compatibility with modern systems.

Packaged in a 28-lead SSOP (Tape & Reel), the PCM2904DBR is designed for surface mount applications, providing a compact and reliable solution for space-constrained designs. It is classified under ECCN EAR99 and HTSUS 8542.39.0001, ensuring compliance with international trade regulations. The device is REACH unaffected and ROHS3 compliant, making it environmentally friendly and suitable for global markets.

PCM2904DBR Features

• High Dynamic Range: ADCs with 89 dB and DACs with 93 dB dynamic range ensure high-quality audio processing.
• High Resolution: 16-bit resolution for both ADCs and DACs provides detailed and accurate audio reproduction.
• Sigma Delta Modulation: Enhances SNR to 89 dB for ADCs and 96 dB for DACs, resulting in superior audio clarity.
• USB Interface: Simplifies connectivity and integration with modern systems.
• Wide Supply Voltage Range: 4.35V to 5.25V for both digital and analog sections, offering flexibility in power supply design.
• Compact Packaging: 28-lead SSOP (Tape & Reel) package is ideal for surface mount applications, saving space and enhancing reliability.
• Environmental Compliance: REACH unaffected and ROHS3 compliant, ensuring suitability for global markets.

PCM2904DBR Applications

The PCM2904DBR is well-suited for a variety of applications where high-quality audio processing and ease of integration are critical. Some specific use cases include:

• Consumer Electronics: Ideal for portable audio devices, such as MP3 players, tablets, and smartphones, where high-fidelity audio is essential.
• Professional Audio Equipment: Suitable for professional audio systems, such as mixing consoles and recording devices, where detailed and accurate audio reproduction is required.
• Automotive Infotainment Systems: Provides high-quality audio processing for in-car entertainment systems, enhancing the listening experience.
• Industrial Applications: Can be used in industrial control systems where reliable and high-quality audio communication is necessary.

Conclusion of PCM2904DBR

The PCM2904DBR from Texas Instruments is a versatile and high-performance stereo audio codec with USB interface. Its high dynamic range, high resolution, and Sigma Delta modulation provide superior audio clarity and fidelity. The wide supply voltage range and compact packaging make it suitable for a variety of applications, from consumer electronics to professional audio equipment. With its environmental compliance and ease of integration, the PCM2904DBR is an excellent choice for designers seeking a reliable and high-quality audio solution.