CS4344-DZZR

ADCs/DACs - Special Purpose Overview

The CS4344-DZZR is a stereo digital-to-analog converter from the Cirrus Logic CS4344 family, housed in a 10-pin TSSOP package. It integrates interpolation filters, a fourth-order multi-bit delta-sigma modulator, and switched-capacitor analog output filtering. The device supports sample rates up to 192 kHz with automatic detection via MCLK/LRCK ratios. Key electrical specifications include a dynamic range of 105 dB (A-weighted) and -90 dB THD+N at nominal supply voltages. It operates on a single +3.3 V or +5 V power supply and features Popguard technology for transient control.

ADCs/DACs - Special Purpose Feature Summary

• Multi-bit Delta-Sigma Modulator with 24-bit conversion resolution
• Automatic speed mode detection for sample rates between 2 kHz and 200 kHz
• On-chip digital de-emphasis filter and Popguard output transient control
• Filtered line-level outputs with low clock-jitter sensitivity

ADCs/DACs - Special Purpose Applications

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

ADCs/DACs - Special Purpose Procurement Notes

Verify the -DZZR suffix indicates the Automotive grade (-40°C to +85°C) rather than Commercial grade (-10°C to +70°C). Confirm interface compatibility, as the CS4344 family includes variants like CS4345 and CS4348 with different serial data formats despite functional similarity.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring high dynamic range (105 dB) and minimal external support circuitry. Ensure the host processor can provide the required MCLK/LRCK integer ratios for auto-detection. Verify that the load capacitance does not exceed 100 pF and resistance remains above 3 kΩ to maintain stability.

ADCs/DACs - Special Purpose Part Context

The CS4344-DZZR belongs to the CS4344/5/8 family, which shares identical internal architecture but differs in supported serial audio interfaces. The CS4344 specifically supports I²S format. The DZZR suffix denotes the extended temperature range variant compared to the CZZR commercial grade.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.