Texas Instruments

PCM1791ADB

PCM1791ADB Description

The PCM1791ADB from Texas Instruments is a high-performance 24-bit, 200kHz sampling rate stereo digital-to-analog converter (DAC) designed for premium audio applications. Housed in a 28-pin SSOP package, it supports both PCM and DSD data interfaces, making it versatile for high-fidelity audio systems. Operating with a dual voltage supply (3V–3.6V analog, 5V digital), this surface-mount IC delivers exceptional signal-to-noise ratio (SNR) and dynamic range, ensuring pristine audio reproduction. Compliant with ROHS3 and REACH standards, it is suitable for global markets and features a Moisture Sensitivity Level (MSL) of 1, allowing unlimited floor life.

PCM1791ADB Features

• 24-bit resolution with 200kHz sampling rate for ultra-low distortion and high dynamic range.
• Dual supply voltage (3V–3.6V analog, 5V digital) for optimized power efficiency and noise isolation.
• Supports PCM and DSD input formats, enabling compatibility with high-resolution audio sources.
• 2-channel (stereo) output with advanced differential architecture for superior audio fidelity.
• Surface-mount design (28-SSOP) for compact PCB integration in space-constrained applications.
• RoHS3 compliant and REACH unaffected, meeting stringent environmental regulations.
• Low jitter performance, critical for minimizing timing errors in digital audio systems.

PCM1791ADB Applications

The PCM1791ADB excels in high-end audio equipment, including:

• Professional audio interfaces and studio-grade DACs requiring ultra-low noise.
• Home theater systems and audiophile-grade digital amplifiers.
• Portable media players and USB DACs where power efficiency and signal clarity are paramount.
• Broadcast and automotive audio systems demanding robust performance under varying conditions.
  Its DSD support makes it ideal for SACD playback, while its PCM compatibility ensures seamless integration with CD-quality and high-resolution audio streams.

Conclusion of PCM1791ADB

The PCM1791ADB stands out as a high-precision, low-distortion DAC tailored for demanding audio applications. Its dual-voltage operation, DSD/PCM support, and 24-bit resolution make it a preferred choice for designers seeking uncompromising audio quality. With Texas Instruments' reliability and compliance with global standards, this IC is a robust solution for professional, consumer, and automotive audio systems where fidelity and performance are critical.