CS4397-KSZ

ADCs/DACs - Special Purpose Overview

The CS4397-KSZ is a 24-bit stereo digital-to-analog converter (DAC) from Cirrus Logic, housed in a 28-pin plastic SOIC package. It supports sample rates up to 192 kHz and delivers a typical dynamic range of 120 dB with -100 dB THD+N. The device utilizes a multi-bit delta-sigma architecture with dynamic-element matching for low noise and jitter sensitivity. Operating conditions include a digital supply (VD) of 3.0 V to 5.25 V and an analog supply (VA) of 4.75 V to 5.25 V. It features I2C and SPI control interfaces, DSD support, and digital de-emphasis filters.

ADCs/DACs - Special Purpose Feature Summary

• 24-bit resolution with up to 192 kHz sample rate support
• 120 dB dynamic range and -100 dB THD+N performance
• Multi-bit delta-sigma modulator with advanced dynamic-element matching
• Supports PCM, DSD, and external 8x interpolation filter modes

ADCs/DACs - Special Purpose Applications

• High-fidelity digital audio systems
• Professional audio equipment requiring multi-standard DAC conversion
• Digital audio players supporting DSD formats

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix KSZ indicates lead-free compliance and the 28-pin SOIC package variant. Confirm operational temperature range specifications (-10°C to +70°C) against system requirements. Ensure power supply voltages align with the recommended operating conditions for both digital and analog sections.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring high dynamic range and low distortion in a standard SOIC footprint. Consider the multi-bit architecture benefits over 1-bit designs for improved jitter sensitivity. Verify interface compatibility with I2C or SPI control ports if hardware mode selection is not utilized.

ADCs/DACs - Special Purpose Part Context

The CS4397-KSZ belongs to the CS4397 series of multi-standard D/A converters. It is functionally equivalent to the CS4397-KS but specified as lead-free. The device integrates a digital interpolation filter, delta-sigma modulator, and switched-capacitor DAC/low-pass filter into a single stereo channel solution.

ADCs/DACs - Special Purpose Replacement Considerations

CS4397-KS is the non-lead-free equivalent within the same package and specification set.

ADCs/DACs - Special Purpose FAQ

What is the maximum input sample rate supported by the CS4397?

The CS4397 supports input sample rates up to 192 kHz in Quad-Speed Mode.

Does the CS4397 support Direct Stream Digital (DSD) format?

Yes, the device includes specific switching characteristics and filter responses for DSD mode operation.

What control port interfaces are available for configuration?

The CS4397 supports both I2C and SPI modes for control port communication.