Texas Instruments

PCM2900CDB

PCM2900CDB Description

The PCM2900CDB from Texas Instruments is a high-performance stereo audio CODEC with an integrated USB interface, designed for professional and consumer audio applications. This surface-mount device features 16-bit resolution, Sigma-Delta modulation, and supports two ADCs and two DACs, delivering exceptional audio fidelity. With a dynamic range of 89 dB (ADC) and 93 dB (DAC), along with an impressive S/N ratio of 89 dB (ADC) and 96 dB (DAC), it ensures low-noise, high-quality audio conversion. Operating on a 3.1V to 3.5V supply for both analog and digital domains, it is optimized for low-power, high-performance systems. The PCM2900CDB is RoHS3 compliant, REACH unaffected, and packaged in a 28-pin SSOP tube, making it suitable for automated assembly processes.

PCM2900CDB Features

• Integrated USB Interface: Simplifies connectivity for USB audio applications without external controllers.
• Dual ADC/DAC Channels: Supports stereo audio with 16-bit resolution for high-fidelity recording and playback.
• High Dynamic Range & SNR: 89/93 dB (ADC/DAC) dynamic range and 89/96 dB SNR ensure superior audio clarity.
• Low-Voltage Operation: 3.1V–3.5V supply reduces power consumption while maintaining performance.
• Sigma-Delta Architecture: Enhances audio quality with oversampling and noise shaping.
• Robust Compliance: RoHS3, REACH, and EAR99 certified, ensuring global regulatory adherence.
• Surface-Mount Design: 28-SSOP package with MSL1 (unlimited) rating for easy PCB integration.

PCM2900CDB Applications

The PCM2900CDB is ideal for applications requiring USB audio interfacing with high-quality conversion, such as:

• USB Headsets & Microphones: Combines ADC and DAC for bidirectional audio in communication devices.
• Portable Audio Interfaces: Low-voltage operation suits battery-powered USB audio adapters.
• PC Audio Peripherals: Enables plug-and-play stereo recording/playback for sound cards and dongles.
• Embedded Audio Systems: Used in industrial or automotive infotainment systems requiring USB audio.

Conclusion of PCM2900CDB

The PCM2900CDB stands out as a compact, high-performance USB audio CODEC, offering low-noise conversion, dual-channel support, and seamless USB integration. Its low-power operation, compliance certifications, and robust packaging make it a versatile choice for consumer electronics, professional audio, and embedded systems. For engineers seeking a reliable, high-fidelity USB audio solution, the PCM2900CDB delivers an optimal balance of performance and ease of implementation.