Texas Instruments

PGA2311UA

PGA2311UA Description

The PGA2311UA from Texas Instruments is a high-performance stereo audio volume control IC designed for precision analog signal attenuation in professional and automotive audio systems. Packaged in a 16-SOIC tube, this surface-mount device (SMD) operates on a ±4.75V to 5.25V dual supply, making it suitable for balanced audio applications. With SPI interface compatibility, it offers digital control of analog volume with low distortion and noise, ensuring pristine audio quality. The device is RoHS3 compliant, REACH unaffected, and rated for automotive-grade applications, meeting stringent reliability standards.

PGA2311UA Features

• Dual-Channel Volume Control: Independently adjusts two audio channels with high accuracy.
• Wide Supply Range: Operates at ±4.75V to 5.25V, ideal for balanced audio systems.
• SPI Digital Interface: Enables microcontroller-based volume adjustment for seamless integration.
• Low Noise & Distortion: Ensures high-fidelity audio performance (<0.001% THD+N).
• Automotive-Grade Reliability: Compliant with AEC-Q100 standards for harsh environments.
• Moisture Sensitivity Level (MSL 2): Suitable for long-term storage (1-year floor life).
• Compact 16-SOIC Package: Space-efficient for PCB-constrained designs.

PGA2311UA Applications

• Professional Audio Mixers: Precision volume control in studio equipment and live sound systems.
• Automotive Infotainment: Digital volume adjustment in car audio head units and amplifiers.
• Musical Instruments: Dynamic signal attenuation in digital effects processors and amplifiers.
• Home Audio Systems: High-end preamplifiers with low-noise performance.
• Broadcast Equipment: Clean signal routing in audio interfaces and consoles.

Conclusion of PGA2311UA

The PGA2311UA stands out as a versatile, high-performance volume control IC, combining low distortion, SPI programmability, and automotive-grade robustness. Its dual-channel architecture and wide voltage range make it ideal for demanding audio applications, from professional studios to in-car systems. With Texas Instruments' proven quality, this IC ensures reliable, high-fidelity audio control in compact, modern designs.