CS5343-DZZR

ADCs/DACs - Special Purpose Overview

The CS5343-DZZR is an automotive-grade, 24-bit stereo analog-to-digital converter (ADC) from Cirrus Logic. It utilizes a third-order multi-bit Delta-Sigma architecture to perform sampling, anti-alias filtering, and conversion without external components. The device supports audio sample rates up to 108 kHz with a typical dynamic range of 98 dB at 5 V and THD+N of -92 dB. It operates on a single +3.3 V or +5 V supply with power consumption under 40 mW. The unit features a high-impedance sampling network, low-latency digital filters, and a built-in high-pass filter for DC offset removal. It is housed in a 10-pin TSSOP package rated for temperatures between -40°C and +105°C.

ADCs/DACs - Special Purpose Feature Summary

• Automotive-grade (-DZZ) reliability with extended temperature range (-40°C to +105°C)
• Multi-bit Delta-Sigma architecture providing 98 dB dynamic range and -92 dB THD+N
• Supports I²S serial audio format with master or slave operation modes
• Slave mode speed auto-detect for sample rates from 4 kHz to 108 kHz
• Integrated high-impedance sampling network eliminates need for external op-amps

ADCs/DACs - Special Purpose Applications

• Automotive entertainment and service systems
• Set-top boxes and digital television audio inputs
• DVD recorders and karaoke players
• Audio/Video receivers

ADCs/DACs - Special Purpose Procurement Notes

Verify the ordering suffix 'DZZR' confirms the Automotive grade (-40°C to +105°C) and Tape & Reel packaging. Confirm the base model 'CS5343' indicates I²S audio format support, distinct from the CS5344 which uses Left-Justified format. Ensure the design accounts for the specific operating voltage requirements of 3.1 V to 3.5 V or 4.75 V to 5.25 V as defined in the automotive specifications.

ADCs/DACs - Special Purpose Selection Notes

Select the CS5343-DZZR when automotive environmental ratings are required alongside I²S interface compatibility. The CS5344 variant should be chosen if Left-Justified format is necessary instead. Designers must ensure the source impedance remains at or below 2.5 kΩ to achieve optimal THD+N performance. Power supply decoupling near the VA pin and careful grounding are critical to realizing the specified 98 dB dynamic range.

ADCs/DACs - Special Purpose Part Context

The CS5343-DZZR belongs to the CS5343/4 family of high-performance audio ADCs. The 'CZZ' suffix denotes Commercial grade (-40°C to +85°C), while 'DZZ' specifies Automotive grade. The 'R' suffix indicates Tape & Reel packaging, whereas non-suffixed parts are typically in Rail packaging. This component integrates the modulator and digital filter, simplifying board layout by removing the need for external anti-alias filters.

ADCs/DACs - Special Purpose Replacement Considerations

Public confirmed substitute part numbers: None.