CS5343-DZZ

ADCs/DACs - Special Purpose Overview

The CS5343-DZZ is an automotive-grade, 24-bit stereo audio analog-to-digital converter (ADC) from Cirrus Logic. It utilizes a multi-bit Delta-Sigma architecture to support sample rates up to 108 kHz with a typical dynamic range of 98 dB at 5 V and THD+N of -92 dB. The device integrates high-impedance sampling networks and digital filters, eliminating the need for external anti-aliasing components. It operates on a single +3.3 V or +5 V supply with power consumption under 40 mW. The CS5343 supports I²S serial audio format and functions in either master or slave modes within a 10-pin TSSOP package rated for -40°C to +105°C.

ADCs/DACs - Special Purpose Feature Summary

• Automotive-grade (-DZZ suffix) operation from -40°C to +105°C
• 24-bit resolution with 98 dB dynamic range and -92 dB THD+N at 5 V
• Supports audio sample rates up to 108 kHz via I²S interface
• Integrated high-impedance sampling network removes need for external op-amps
• Slave mode auto-detects speed; Master mode configurable via pull-up resistors

ADCs/DACs - Special Purpose Applications

• Automotive audio systems
• Set-top boxes
• DVD recorders and DVD-karaoke players
• A/V receivers

ADCs/DACs - Special Purpose Procurement Notes

Verify the -DZZ suffix confirms automotive grade qualification (-40°C to +105°C). Confirm the part number corresponds to the CS5343 variant which outputs I²S format, distinct from the CS5344 Left-Justified format. Check current availability status as older automotive grades may have limited stock or end-of-life implications.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring wide dynamic range and low distortion in automotive environments. Ensure the system clock (MCLK) frequency matches the required sample rate ratios (256x or 384x). Verify that the analog input source impedance is less than or equal to 2.5 kΩ to optimize THD+N performance.

ADCs/DACs - Special Purpose Part Context

The CS5343-DZZ belongs to the CS5343/4 family of multi-bit audio ADCs. The 'CS5343' designation indicates I²S serial audio format output, whereas the 'CS5344' variant supports Left-Justified format. The '-DZZ' suffix specifically denotes the Automotive temperature grade and 10-TSSOP rail packaging, distinguishing it from the Commercial grade (-CZZ) and tape/reel options.

ADCs/DACs - Special Purpose Replacement Considerations

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