PCM2704DB

ADCs/DACs - Special Purpose Overview

The PCM2704DB is a stereo audio digital-to-analog converter (DAC) manufactured by Texas Instruments. It features a 16-bit resolution and supports sampling rates up to 48 kHz. The device integrates a USB interface for direct connection to host systems, eliminating the need for external clocking or complex serial interfaces. It operates on a single power supply ranging from 3 V to 5.25 V, with typical operation at 3.3 V or 5 V. The component is housed in a 28-pin SSOP package and provides dual analog outputs suitable for headphone and S/PDIF applications.

ADCs/DACs - Special Purpose Feature Summary

• Integrated USB interface for simplified system design
• 16-bit resolution with 98 dB Signal-to-Noise Ratio (SNR)
• Supports 48 kHz sampling rate
• Single-supply operation (3 V to 5.25 V)

ADCs/DACs - Special Purpose Applications

• USB audio peripherals
• Desktop computer sound cards
• Portable audio devices

ADCs/DACs - Special Purpose Part Context

The PCM2704DB belongs to the PCM2704 series of audio DACs. It is designed as a complete solution for converting digital audio data received via USB into high-fidelity analog signals. The device simplifies audio subsystem design by combining the DAC, USB controller, and clock recovery circuitry into a single chip.

ADCs/DACs - Special Purpose Replacement Considerations

The PCM2705DB is a compatible alternative within the same family, offering similar functionality with potential differences in pinout or feature set. Engineers should verify electrical compatibility and software driver support when substituting components.