PCM2904DBG4

Codecs Overview

The PCM2904DBG4 is a stereo audio codec manufactured by Texas Instruments, designed for USB audio applications. It integrates two ADCs and two DACs with 16-bit resolution, supporting sampling rates up to 48 kHz. The device operates on a single 5V supply, with voltage ranges of 4.35V to 5.25V for both analog and digital sections. It features an integrated headphone amplifier and connects via a USB interface. The component is housed in a 28-SSOP package (5.30mm width) and supports surface-mount installation. It functions within a temperature range of -25°C to +85°C and utilizes delta-sigma modulation for conversion.

Codecs Feature Summary

• Integrates stereo audio processing with built-in USB connectivity for direct host interfacing.
• Includes an internal headphone amplifier to drive output devices without external components.
• Utilizes delta-sigma modulation architecture for high-fidelity analog-to-digital and digital-to-analog conversion.

Codecs Applications

• PC audio systems requiring high-quality stereo input and output.
• USB microphone implementations utilizing the integrated ADC capabilities.
• Consumer electronics needing compact stereo audio codec solutions.

Codecs Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels, as the PCM2904DBG4 is listed as discontinued by major retailers like DigiKey. Confirm that the specific suffix 'G4' aligns with current RoHS3 compliance requirements and lead-free specifications before procurement. Cross-reference part numbers carefully to ensure compatibility with existing PCB footprints and design specifications.

Codecs Selection Notes

Select this component when a stereo USB audio codec with an integrated headphone amplifier is required. Ensure the design accommodates the 28-SSOP package dimensions and the 4.35V to 5.25V power supply constraints. Consider the operating temperature range of -25°C to +85°C against environmental conditions. Verify that the 16-bit resolution and 48kHz sampling rate meet the specific audio fidelity requirements of the target application.

Codecs Part Context

The PCM2904DBG4 belongs to the PCM2904 series of USB audio codecs from Texas Instruments. It shares core functionalities with variants such as the PCM2904DB but differs in packaging and specific manufacturing revisions. This series is engineered for low-power, high-performance audio processing in portable and desktop electronic devices.

Codecs Replacement Considerations

The PCM2904DB is identified as a manufacturer-recommended alternative. Verify pinout compatibility and electrical parameter equivalence before substitution. Check for any differences in package dimensions or thermal characteristics between the G4 suffix variant and the standard DB version.