Texas Instruments

PCM2903BDB  

CODECS

PCM2903BDB Description

The PCM2903BDB is a high-performance stereo audio codec designed by Texas Instruments, featuring advanced analog-to-digital (ADC) and digital-to-analog (DAC) conversion capabilities. This interface IC chip is optimized for applications requiring high-quality audio processing and is housed in a surface-mount 28 SSOP package. The PCM2903BDB supports a dynamic range of 89 dB for ADCs and 93 dB for DACs, ensuring superior audio clarity and fidelity. It operates within a supply voltage range of 3V to 3.6V for both digital and analog sections, making it suitable for low-power applications. The device employs a USB data interface, facilitating seamless connectivity with modern digital systems. With a typical signal-to-noise ratio (SNR) of 89 dB for ADCs and 96 dB for DACs, the PCM2903BDB delivers exceptional audio performance. It also incorporates sigma-delta modulation, enhancing audio quality and reducing quantization noise. Despite its robust performance, the PCM2903BDB is marked as "Not For New Designs," indicating it is best suited for existing systems or legacy applications.

PCM2903BDB Features

• High Dynamic Range: The PCM2903BDB offers a dynamic range of 89 dB for ADCs and 93 dB for DACs, ensuring high-quality audio reproduction with minimal distortion.
• Low-Power Operation: With a supply voltage range of 3V to 3.6V for both digital and analog sections, the device is ideal for battery-powered and low-power applications.
• USB Data Interface: The USB interface provides easy integration with various digital systems, simplifying design and enhancing connectivity.
• Stereo Audio Codec: The PCM2903BDB supports stereo audio processing with 16-bit resolution, delivering clear and detailed audio output.
• Sigma-Delta Modulation: This feature enhances audio quality by reducing quantization noise and improving overall performance.
• Surface-Mount Packaging: The 28 SSOP package is suitable for compact and space-constrained designs, facilitating easy integration into various electronic systems.
• Compliance and Standards: The PCM2903BDB is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.
• Moisture Sensitivity Level: With an MSL of 1 (Unlimited), the device is suitable for a wide range of environmental conditions without additional moisture protection.

PCM2903BDB Applications

The PCM2903BDB is ideal for a variety of applications requiring high-quality audio processing and low-power operation. Key use cases include:

• Portable Audio Devices: The low-power design and high audio quality make it suitable for portable music players, smartphones, and other mobile devices.
• Computer Peripherals: The USB interface allows for seamless integration with computer peripherals such as external sound cards and USB microphones.
• Consumer Electronics: The PCM2903BDB can be used in home theater systems, smart speakers, and other consumer electronics requiring high-fidelity audio.
• Professional Audio Equipment: Its robust performance and high dynamic range make it a good fit for professional audio applications such as studio monitors and recording equipment.

Conclusion of PCM2903BDB

The PCM2903BDB is a versatile and high-performance stereo audio codec that delivers exceptional audio quality and low-power operation. Its advanced features, including sigma-delta modulation and USB connectivity, make it suitable for a wide range of applications. While marked as "Not For New Designs," the PCM2903BDB remains an excellent choice for existing systems and legacy applications requiring reliable and high-quality audio processing.

PCM2903BDB Documents

Download datasheets and manufacturer documentation for PCM2903BDB

Datasheets :

PCM2903B      

PCN Packaging :

Marking Change 24/Mar/2021       Carrier Tape Revision C 09/Apr/2015      

HTML Datasheet :

PCM2903B      

PCN Design/Specification :

Marking Change 07/Oct/2021       Lead Frame Base Update 02/Apr/2015