CS4345-DZZR

ADCs/DACs - Special Purpose Overview

The CS4345-DZZR is a stereo digital-to-analog converter from the Cirrus Logic CS4344 family, housed in a 10-pin TSSOP package. It features a fourth-order multibit delta-sigma modulator with integrated interpolation and analog low-pass filtering. The device supports 24-bit resolution and sample rates up to 192 kHz via automatic speed detection. Key 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 includes Popguard technology for transient control.

ADCs/DACs - Special Purpose Feature Summary

• 24-bit resolution with 105 dB dynamic range and -90 dB THD+N
• Automatic detection of sample rates up to 192 kHz
• Left-Justified serial audio data interface format
• Integrated digital de-emphasis filter and Popguard output transient control

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 -DZZR suffix indicates the Automotive grade operating temperature range (-40°C to +85°C). Confirm the specific Left-Justified interface requirement against the source system. Check current availability status as this component may be subject to lifecycle changes.

ADCs/DACs - Special Purpose Selection Notes

Select the CS4345 specifically when a Left-Justified serial interface is required, distinguishing it from the I2S-compatible CS4344. Ensure the host processor can provide the necessary MCLK/LRCK ratios for the desired sample rate. Verify that the application requires the extended automotive temperature range associated with the -DZZR suffix.

ADCs/DACs - Special Purpose Part Context

The CS4345 is part of the CS4344/5/8 family, sharing identical internal architecture and performance characteristics. The primary distinction between these members is the supported serial data format: CS4344 uses I2S, CS4345 uses Left-Justified, and CS4348 uses Right-Justified 16-bit formats.

ADCs/DACs - Special Purpose Replacement Considerations

The CS4344-CZZR serves as a functional substitute if the application utilizes the I2S protocol instead of Left-Justified. The CS4348-CZZR is an alternative for Right-Justified 16-bit interfaces. All variants share the same pinout and electrical specifications.