CS4344-CZZ

ADCs/DACs - Special Purpose Overview

The CS4344-CZZ is a stereo digital-to-analog converter (DAC) from Cirrus Logic, packaged in a 10-pin TSSOP. It features a fourth-order multi-bit delta-sigma modulator and linear analog low-pass filter. The device supports 24-bit resolution with sample rates up to 192 kHz and operates on a single +3.3 V or +5 V supply. Key specifications include a dynamic range of 105 dB and -90 dB THD+N. It incorporates Popguard technology for transient control and on-chip digital de-emphasis.

ADCs/DACs - Special Purpose Feature Summary

• Multi-bit Delta-Sigma Modulator architecture
• Automatic sample rate detection up to 192 kHz
• Popguard output transient control technology
• On-chip digital de-emphasis filter

ADCs/DACs - Special Purpose Applications

• DVD players and recorders
• Digital televisions
• Home theater systems
• Set-top boxes
• Automotive audio systems

ADCs/DACs - Special Purpose Procurement Notes

Verify the suffix 'CZZ' indicates the commercial temperature grade (-10°C to +70°C). Confirm the specific interface format supported by this part number within the CS4344 family, as variants differ only by serial data format compatibility.

ADCs/DACs - Special Purpose Selection Notes

Select based on required serial audio interface format (I2S, Left Justified, or Right Justified), as the CS4344/5/8 family members differ solely in supported formats. Ensure MCLK/LRCK ratios align with standard audio frequencies like 44.1 kHz or 48 kHz.

ADCs/DACs - Special Purpose Part Context

The CS4344-CZZ belongs to the CS4344/5/8 family of 10-pin stereo DACs. These devices are functionally identical except for their supported serial audio data interface formats. The CZZ suffix denotes the commercial operating temperature range.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part numbers: NX 4344 N, HT5010, DP 4344.

ADCs/DACs - Special Purpose FAQ

How does the CS4344-CZZ handle output transients during power-up?

It uses Popguard technology, which ramps the outputs to the quiescent voltage (VQ) over approximately 250 ms (with a 3.3 µF capacitor) to charge external DC-blocking capacitors before audio data begins.

What is the maximum master clock frequency supported?

The maximum MCLK frequency is 50 MHz.

Does the CS4344-CZZ support internal serial clock generation?

Yes, it supports both external and internal serial clock modes. Internal mode allows access to the digital de-emphasis function.