SB080052025 – 32BIT DAC SCHEMATIC BLOCK

This schematic block features the CS43131, a high-performance 32-bit audio DAC from Cirrus Logic, designed for premium audio playback in compact, power-efficient applications. Known for its outstanding dynamic range and exceptionally low noise floor, the CS43131 integrates a high-resolution 32-bit DAC, a low-power Class H headphone amplifier, and advanced digital interpolation filters—all within a space-saving 40-QFN package.

Configured as a breakout-style module, this block streamlines audio prototyping with accessible differential and single-ended outputs, I²S/PCM digital audio inputs, and simplified power sequencing. Its integrated headphone driver removes the need for external amplification, making it ideal for portable or low-power audio designs.

The CS43131 family has become a trusted component in modern audio products thanks to its audiophile-grade performance, low power consumption, and continued availability across Cirrus Logic’s audio portfolio.

Key Features:

• Cirrus Logic CS43131 32-bit high-resolution audio DAC
• Up to 130 dB dynamic range and −115 dB THD+N performance
• Integrated Class H headphone amplifier for efficient portable audio designs
• Supports I²S / left-justified / right-justified / TDM digital audio formats
• Low-power architecture suited for battery-operated devices
• 40-QFN package breakout for rapid prototyping and integration
• Built-in digital filters with selectable response curves

Typical Applications:

• High-fidelity portable audio players and USB DACs
• Smartphone and tablet audio subsystems
• Embedded multimedia systems
• Wearable audio devices
• Professional and consumer audio accessories
• Battery-powered sound modules and DSP-based designs

By incorporating this Quickboards schematic block, engineers can accelerate development of audio-centric products, reduce analog design complexity, and achieve premium playback performance with minimal tuning. The CS43131’s robust feature set makes it a powerful drop-in solution for designs requiring compact, low-noise, studio-grade audio output.