PCM2702E/2K

ADCs/DACs - Special Purpose Overview

The PCM2702E/2K is a single-chip 16-bit stereo digital-to-analog converter (DAC) featuring an integrated USB 1.0 compliant interface controller. It supports full-speed data transfer at 12Mbps and accepts 16-bit stereo or monaural audio streams at sampling rates of 32kHz, 44.1kHz, and 48kHz. The device utilizes SpAct™ technology to recover stable clock signals from the USB data stream. Key analog performance metrics include a typical signal-to-noise ratio (SNR) of 105dB, dynamic range of 100dB, and total harmonic distortion plus noise (THD+N) of 0.002%. It operates on dual power supplies: +5V for analog sections and +3.3V for digital logic.

ADCs/DACs - Special Purpose Feature Summary

• Integrated USB 1.0 Full-Speed Transceiver with adaptive isochronous transfer mode
• 16-bit stereo DAC with 8x oversampling digital interpolation filter
• On-chip crystal oscillator supporting a single 12MHz external clock source
• Digital attenuation control (0dB to -64dB in 1dB steps) and soft mute functionality

ADCs/DACs - Special Purpose Applications

• Standalone USB audio speakers
• CRT/LCD integrated USB audio speakers
• USB audio amplifiers

ADCs/DACs - Special Purpose Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status via current datasheets. Check for obsolescence notices as this component may be subject to discontinuation. Ensure supply chain stability for long-term production needs.

ADCs/DACs - Special Purpose Selection Notes

Select the /2K suffix variant when tape and reel packaging containing 2000 devices per reel is required for automated assembly. Verify that the host system provides a 12MHz clock source compatible with the XTI pin if not using the internal oscillator. Ensure power supply rails match the specified +5V analog and +3.3V digital requirements.

ADCs/DACs - Special Purpose Part Context

This component belongs to the PCM2702 family of audio DACs manufactured by Texas Instruments (formerly Burr-Brown). The PCM2702E represents the standard rail-packaged version, while the PCM2702E/2K specifically denotes the tape and reel configuration. Both variants share identical electrical specifications and functional capabilities.

ADCs/DACs - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Texas Instruments resources for potential replacements or updated components within the same product family.