CS43L22-CNZR

ADCs/DACs - Special Purpose Overview

The CS43L22-CNZR is a low-power stereo digital-to-analog converter (DAC) integrating headphone amplifiers and Class D speaker drivers. It features a 24-bit multi-bit delta-sigma architecture with 98 dB dynamic range and 88 dB THD+N. The device supports variable power supplies, including 1.6 V to 5.0 V for the amplifier section and 1.8 V to 2.5 V for digital/analog cores. Key specifications include 2 x 1.00 W output into 8 Ω at 5.0 V for speakers and 2 x 44 mW into 16 Ω at 2.5 V for headphones. It operates within a temperature range of -40 °C to +85 °C.

ADCs/DACs - Special Purpose Feature Summary

• Integrated Class D stereo speaker amplifier delivering up to 1.00 W per channel into 8 Ω without external filters.
• Ground-centered headphone amplifier with integrated negative voltage regulator, eliminating DC-blocking capacitors.
• Digital signal processing engine featuring bass/treble tone control, de-emphasis, limiter, and programmable beep generator.
• Stereo analog input passthrough architecture allowing direct routing of analog signals to headphone outputs.

ADCs/DACs - Special Purpose Applications

• Personal Digital Assistants (PDAs)
• Personal media players
• Portable game consoles

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix CNZR corresponds to the tape and reel packaging format when sourcing components. Confirm that the operating environment remains within the commercial grade temperature limits of -40 °C to +85 °C. Ensure supply voltages adhere to the specified ranges for the Class D amplifier, analog core, and interface logic to maintain performance integrity.

ADCs/DACs - Special Purpose Selection Notes

Select this component for portable systems requiring high integration of DAC, headphone drive, and speaker amplification in a single package. The device is suitable for battery-powered applications due to its low quiescent current and battery level monitoring capabilities. Consider the 40-pin QFN package constraints and thermal requirements for PCB layout during the design phase.

ADCs/DACs - Special Purpose Part Context

The CS43L22 is part of Cirrus Logic's portfolio of highly integrated audio converters designed for mobile devices. It replaces discrete solutions by combining a 24-bit DAC with power amplification stages. The device is pin-compatible with the CS42L52, facilitating potential upgrades or design iterations within compatible product lines.

ADCs/DACs - Special Purpose Replacement Considerations

The CS42L52 is a pin-compatible alternative within the same manufacturer's lineup. Verify functional equivalence regarding register maps and electrical characteristics before substitution.