CS4340-BS

ADCs/DACs - Special Purpose Overview

The CS4340-BS is a stereo digital-to-analog converter (DAC) from Cirrus Logic, featuring 24-bit resolution and support for sampling rates up to 96 kHz. It integrates interpolation filters, delta-sigma conversion, and analog output filtering within an 8-pin SOIC package. The device operates on a single +5 V supply and includes Popguard technology to minimize startup pops. Key performance metrics include a dynamic range of 96 dB and total harmonic distortion plus noise (THD+N) of -88 dB.

ADCs/DACs - Special Purpose Feature Summary

• Complete stereo DAC system with integrated interpolation, D/A conversion, and analog output filtering
• 24-bit resolution supporting audio data rates up to 96 kHz
• 96 dB dynamic range and -88 dB THD+N performance
• Popguard technology for reduced audible artifacts during power-up and shutdown
• On-chip digital de-emphasis filter

ADCs/DACs - Special Purpose Applications

• Home theater systems
• Compact disc players
• Digital audio workstations

ADCs/DACs - Special Purpose Part Context

The CS4340-BS belongs to the CS4334 family of audio DACs. Devices in this family are functionally compatible with the CS4330, CS4331, and CS4333 series, differing primarily in supported digital audio interface formats. The CS4340 variant specifically supports serial interface protocols suitable for standard consumer audio applications.

ADCs/DACs - Special Purpose Replacement Considerations

Functionally compatible replacements within the same family include the CS4334, CS4335, CS4336, CS4337, CS4338, and CS4339. Selection among these depends on specific digital interface requirements such as I2S, TDM, or left-justified formats.