CS4340-KSZR

ADCs/DACs - Special Purpose Overview

The CS4340-KSZR is a stereo digital-to-analog converter (DAC) from Cirrus Logic, packaged in a lead-free 16-pin SOIC. It supports audio sample rates from 4 kHz to 100 kHz with a 24-bit resolution and achieves a dynamic range of up to 101 dB. The device operates on a single power supply ranging from 3.0 V to 5.0 V, consuming as little as 33 mW at 3.0 V. Key features include integrated fourth-order delta-sigma conversion, digital de-emphasis for standard frequencies, and Popguard technology to suppress output transients.

ADCs/DACs - Special Purpose Feature Summary

• 101 dB dynamic range and -91 dB THD+N performance
• Integrated digital de-emphasis for 32, 44.1, and 48 kHz sample rates
• Popguard technology minimizes clicks and pops during power transitions
• Low clock jitter sensitivity due to delta-sigma architecture

ADCs/DACs - Special Purpose Applications

• DVD players
• CD players
• Set-top boxes
• Automotive audio systems

ADCs/DACs - Special Purpose Procurement Notes

Verify the 'KSZ' suffix indicates lead-free packaging and an operating temperature range of -10°C to +70°C. Confirm that the specific revision matches the required RoHS compliance standards for the target market. Check for obsolescence notices or last-time buy notifications from the manufacturer.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring low power consumption and high audio fidelity within a 3V to 5V supply range. Ensure the system clocking supports the required MCLK to LRCK ratios for either internal or external serial clock modes. Verify that the load capacitance does not exceed 100 pF to maintain stability.

ADCs/DACs - Special Purpose Part Context

This part belongs to the CS4340 family of stereo DACs. The 'KSZ' variant specifically denotes a lead-free 16-pin SOIC package suitable for commercial temperature ranges (-10°C to +70°C). Other variants in the series include the CS4340-DSZ for extended industrial temperatures and the CS4340-CZZ in a TSSOP package.

ADCs/DACs - Special Purpose Replacement Considerations

Direct pin-compatible replacements within the same family include the CS4340-KS (non-lead-free) and CS4340-DSZ (extended temperature). For different packages, the CS4340-CZZ offers the same functionality in a TSSOP-16 form factor.