CS4340A-KSZ

ADCs/DACs - Special Purpose Overview

The CS4340A-KSZ is a stereo digital-to-analog converter (DAC) from Cirrus Logic, housed in a 16-pin SOIC package. It supports sample rates up to 192 kHz with automatic mode detection for single, double, and quad-speed operations. The device features a fourth-order delta-sigma architecture providing 101 dB dynamic range and -91 dB THD+N at 5 V supply. Operating on +3.3 V or +5 V supplies, it consumes 50 mW at 3.3 V. Key features include on-chip digital de-emphasis for 44.1 kHz, Popguard technology for transient control, and filtered line-level outputs.

ADCs/DACs - Special Purpose Feature Summary

• 101 dB Dynamic Range and -91 dB THD+N performance
• Supports sample rates up to 192 kHz with automatic mode detection
• Popguard technology minimizes power-up and power-down transients
• On-chip digital de-emphasis filter for 44.1 kHz audio

ADCs/DACs - Special Purpose Applications

• DVD Audio players
• High-fidelity audio systems requiring low jitter tolerance
• Digital audio interfaces supporting I2S, Left Justified, and Right Justified formats

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'KSZ' indicates lead-free packaging as defined in the ordering information. Confirm that the design requires support for sample rates above 50 kHz, as the CS4340A does not support rates between 50 kHz and 84 kHz or internal serial clock modes found in the original CS4340.

ADCs/DACs - Special Purpose Selection Notes

Select the CS4340A-KSZ when upgrading from a CS4340 design while requiring support for sample rates up to 192 kHz. Ensure the system provides external master clocks (MCLK, LRCK, SCLK) as the device lacks an internal serial clock generator. Verify compatibility with 3.3 V or 5 V logic levels for the serial interface.

ADCs/DACs - Special Purpose Part Context

The CS4340A-KSZ is the lead-free version of the CS4340A-KS. Both are pin-compatible with the original CS4340 but offer extended functionality including higher sample rate support (up to 192 kHz) and automatic mode detection. The device belongs to the CS4340 family of stereo DACs designed for high-performance audio applications.

ADCs/DACs - Special Purpose Replacement Considerations

The CS4340A is pin-compatible with the CS4340. However, the CS4340A does not support sample rates between 50 kHz and 84 kHz, nor does it support 32 kHz or 48 kHz de-emphasis. Designs relying on these specific legacy features require circuit modifications or alternative components.