Texas Instruments

PCM1704U

PCM1704U Description

The PCM1704U from Texas Instruments is a high-performance 24-bit stereo digital-to-analog converter (DAC) from the SoundPlus™ series, designed for premium audio applications. This obsolete but highly regarded IC features a serial data interface, dual ±5V supply voltage, and supports sampling rates up to 96 kHz. Packaged in a 20-pin SOIC tube, it delivers exceptional audio fidelity with low distortion and high dynamic range, making it a preferred choice for audiophile-grade systems. Its ROHS3 compliance and REACH unaffected status ensure environmental safety, while its MSL 2 (1 Year) rating indicates moderate moisture sensitivity.

PCM1704U Features

• 24-bit Resolution: Ensures ultra-high precision in audio signal conversion.
• Dual ±5V Supply: Optimized for balanced analog output stages.
• 96 kHz Sampling Rate: Supports high-resolution audio playback.
• Low Distortion: Ideal for critical listening environments.
• Serial Data Interface: Simplifies integration with digital audio systems.
• SoundPlus™ Technology: TI’s premium audio architecture for superior sound quality.
• Surface Mount Design: Compact footprint for space-constrained applications.

PCM1704U Applications

The PCM1704U excels in high-end audio equipment, including:

• Professional Audio DACs: Studio-grade converters for mastering and playback.
• Hi-Fi Systems: Audiophile CD players, amplifiers, and preamplifiers.
• Broadcast Equipment: High-fidelity signal processing in radio/TV studios.
• Legacy Audio Upgrades: Retrofit solutions for vintage digital audio systems.

Conclusion of PCM1704U

Despite its obsolete status, the PCM1704U remains a benchmark for high-resolution audio conversion, prized for its 24-bit accuracy, low noise, and exceptional linearity. Its dual-supply operation and SoundPlus™ pedigree make it a standout in demanding audio applications. While newer alternatives exist, the PCM1704U’s performance ensures continued use in specialized, high-fidelity designs where audio purity is paramount.