CS5331A-DSZ

Analog To Digital Converters (ADC) Overview

The CS5331A-DSZ is an 8-pin stereo analog-to-digital converter designed for digital audio applications. It integrates delta-sigma modulation, digital anti-alias filtering, and serial output generation to produce 18-bit values for left and right channels. The device operates from a single +5 V supply with typical power dissipation of 150 mW and supports adjustable sampling rates between 2 kHz and 50 kHz. Key electrical specifications include a dynamic range of 94 dB (unweighted), 0.05 dB passband ripple, and >80 dB stopband rejection. It features I²S-compatible serial data output and includes internal sample-and-hold circuitry and voltage reference.

Analog To Digital Converters (ADC) Feature Summary

• 18-Bit Resolution: Generates 18-bit two's complement serial data for both left and right audio channels.
• I²S Compatible Interface: Output format includes a one SCLK period delay between LRCK transitions and MSB, compatible with I²S standards.
• Integrated Digital Filtering: Linear phase digital anti-alias filter provides 0.05 dB passband ripple and >80 dB stopband rejection without external components.
• Low Power Operation: Consumes 150 mW in normal mode and reduces to 0.5 mW in power-down mode.

Analog To Digital Converters (ADC) Applications

• Digital Audio Recording Systems
• Portable Battery-Powered Audio Devices
• Professional Audio Interfaces

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix DSZ indicates the Automotive grade (-40°C to +85°C) operating temperature range and Tape & Reel packaging configuration. Confirm that the design requires I²S-compatible timing rather than the standard CS5330A format. Ensure the system design accounts for the 47 kΩ pull-down resistor requirement if Master Mode operation is intended.

Analog To Digital Converters (ADC) Selection Notes

Select the CS5331A-DSZ over the CS5330A variant when I²S compatibility is required for the digital interface. Choose this Automotive grade part if the application environment exceeds the Commercial grade temperature limits of -10°C to +70°C. Verify that the input signal amplitude matches the typical 4 Vpp full-scale requirement centered at +2.4 V.

Analog To Digital Converters (ADC) Part Context

The CS5331A-DSZ belongs to the CS5330A/31A family of stereo A/D converters manufactured by Cirrus Logic. While functionally identical to the CS5330A in conversion performance, it differs specifically in its serial data output timing to support I²S protocols. The 'DSZ' suffix denotes the Automotive temperature grade and SOIC package type.

Analog To Digital Converters (ADC) Replacement Considerations

The CS5331A-KSZ serves as a functional equivalent but utilizes Bulk packaging instead of Tape & Reel. For non-I²S applications requiring the same Automotive grade, the CS5330A-BSZ offers identical electrical performance with a different data output format.