Texas Instruments

PCM2704CDB

PCM2704CDB Description

The PCM2704CDB from Texas Instruments is a high-performance 16-bit stereo audio DAC (digital-to-analog converter) with an integrated USB interface, designed for seamless digital audio playback. Packaged in a 28-pin SSOP and compliant with ROHS3 standards, it operates on a dual voltage supply (3V–3.6V or 5V), supporting both analog and digital power sources. This surface-mount IC delivers a 48 kHz sampling rate, ensuring CD-quality audio output, and features SPI and USB data interfaces for flexible system integration. With two channels, it is ideal for stereo applications, and its EAR99/REACH Unaffected status ensures global compliance.

PCM2704CDB Features

• USB Audio Interface: Built-in USB 1.1 controller eliminates the need for external USB PHY, simplifying design.
• 16-Bit Resolution: Delivers high-fidelity audio with low distortion and noise.
• Dual Power Supply (3V/5V): Supports flexible power configurations for embedded systems.
• 48 kHz Sampling Rate: Ensures compatibility with standard audio formats.
• SPI Control Interface: Enables configuration and control for advanced applications.
• RoHS3 Compliant & REACH Unaffected: Meets stringent environmental regulations.
• Moisture Sensitivity Level 1 (Unlimited): Suitable for extended storage and handling.

PCM2704CDB Applications

The PCM2704CDB excels in USB-powered audio systems, including:

• USB DACs & Headphone Amplifiers: Provides plug-and-play digital audio conversion.
• PC Audio Peripherals: Ideal for USB sound cards, external audio interfaces, and gaming headsets.
• Embedded Audio Systems: Used in kiosks, POS terminals, and automotive infotainment where USB audio is required.
• Consumer Electronics: Integrates into smart speakers, digital mixers, and portable audio devices.

Conclusion of PCM2704CDB

The PCM2704CDB stands out for its integrated USB interface, high-resolution audio output, and flexible power options, making it a versatile choice for USB-based audio solutions. Its compact SSOP package, compliance with environmental standards, and ease of integration position it as a reliable DAC for both consumer and industrial applications. Engineers benefit from its simplified design approach, reducing BOM cost and development time compared to discrete solutions.