CS5331A-KSZ

Analog To Digital Converters (ADC) Overview

The CS5331A-KSZ is an 8-pin stereo analog-to-digital converter designed for digital audio applications. It provides 18-bit resolution with a typical dynamic range of 94 dB and operates from a single +5 V supply, consuming 150 mW during normal operation. The device utilizes delta-sigma modulation with 128x oversampling and includes linear-phase digital anti-alias filtering, eliminating the need for external filters. It supports adjustable system sampling rates between 2 kHz and 50 kHz, including standard frequencies like 32, 44.1, and 48 kHz. The CS5331A features an I²S-compatible serial data interface and is housed in an 8-pin SOIC package suitable for commercial temperature ranges.

Analog To Digital Converters (ADC) Feature Summary

• 18-bit resolution with 94 dB A-weighted dynamic range
• I²S-compatible serial output format with one SCLK period delay
• Integrated linear-phase digital anti-alias filter (80 dB stopband rejection)
• Single +5 V power supply with 150 mW typical power dissipation

Analog To Digital Converters (ADC) Applications

• Digital audio receivers
• Portable battery-powered audio equipment
• Compact disc players
• Digital recording systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'KSZ' to confirm the component is the commercial grade version packaged in bulk within an 8-pin SOIC housing. Ensure the design requires the I²S-compatible timing characteristic unique to the CS5331A variant rather than the CS5330A. Confirm that the application environment remains within the specified -10°C to +70°C operating temperature range.

Analog To Digital Converters (ADC) Selection Notes

Select the CS5331A when an I²S-compatible serial interface is required, as it differs from the CS5330A by introducing a one SCLK period delay between LRCK transitions and the MSB. This component is appropriate for designs needing 18-bit conversion at sample rates up to 50 kHz without external anti-alias filtering. Consider the CS5330A if the specific non-delayed data format is preferred instead.

Analog To Digital Converters (ADC) Part Context

The CS5331A belongs to the CS5330A/31A family of complete stereo A/D converters. While sharing identical internal architecture, power requirements, and filtering capabilities with the CS5330A, the CS5331A is distinguished solely by its serial data output format compatibility with I²S standards. Both variants utilize delta-sigma modulation and operate on a single +5 V supply.

Analog To Digital Converters (ADC) Replacement Considerations

The CS5330A-KSZ serves as a functional substitute regarding electrical performance and pinout, provided the host processor can accommodate the different serial data timing characteristics. No other direct cross-model replacements are documented in the source material.