CS5344-DZZR

ADCs/DACs - Special Purpose Overview

The CS5344-DZZR is an automotive-grade, 24-bit stereo audio analog-to-digital converter (ADC) from Cirrus Logic. It utilizes a third-order multi-bit Delta-Sigma architecture to achieve 98 dB dynamic range and -92 dB THD+N at 5 V operation. The device supports sample rates up to 108 kHz per channel and features a low-latency digital filter with integrated high-pass filtering for DC offset removal. Powered by a single +3.3 V or +5 V supply, it consumes less than 40 mW at 3.3 V. The component operates in master or slave modes with auto-detect capabilities and outputs left-justified serial audio data via a 10-pin TSSOP package.

ADCs/DACs - Special Purpose Feature Summary

• Automotive grade (-40°C to +105°C) with 98 dB dynamic range and -92 dB THD+N at 5 V
• Supports sample rates up to 108 kHz using a 3rd-order multi-bit Delta-Sigma modulator
• Outputs Left-Justified audio format with low-latency digital filtering
• Single +3.3 V or +5 V power supply with power consumption under 40 mW at 3.3 V

ADCs/DACs - Special Purpose Applications

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

ADCs/DACs - Special Purpose Procurement Notes

Verify the DZZ suffix indicates the Automotive temperature range (-40°C to +105°C) and tape-and-reel packaging configuration. Confirm that the system requires Left-Justified serial audio output, as this distinguishes the CS5344 from the I²S-compatible CS5343. Ensure the design accommodates the 10-pin TSSOP footprint and single-supply voltage requirements.

ADCs/DACs - Special Purpose Selection Notes

Select the CS5344 over the CS5343 when Left-Justified interface compatibility is required rather than I²S. Choose the DZZ variant for applications requiring extended temperature ranges up to +105°C. Verify that the source impedance remains below 2.5 kΩ to optimize THD+N performance and ensure the MCLK frequency aligns with the desired sample rate and clock ratio settings.

ADCs/DACs - Special Purpose Part Context

The CS5344 belongs to the CS5343/4 family of complete analog-to-digital converters designed for digital audio systems. It integrates sampling, conversion, and anti-alias filtering into a single chip, eliminating the need for external op-amps or filters. The device shares architectural similarities with the CS5343 but differs in its serial audio output format.

ADCs/DACs - Special Purpose Replacement Considerations

The CS5343-DZZR serves as a functional substitute if the application can accommodate I²S audio format instead of Left-Justified. Both devices share identical pinouts, power requirements, and electrical specifications within their respective commercial and automotive grades.

ADCs/DACs - Special Purpose FAQ

What is the difference between the CS5343 and CS5344?

The primary difference is the serial audio output format. The CS5344 outputs Left-Justified audio data, while the CS5343 outputs I²S format. All other electrical characteristics and pinouts remain identical.

How does the device handle mode selection?

The CS5344 supports both Master and Slave operation. In Slave Mode, it automatically detects the speed mode (Single or Double-Speed) based on input clocks. In Master Mode, speed and clock ratios are configured via pull-up resistors on the LRCK and SCLK pins during power-up.

What is the maximum sample rate supported?

The CS5344 supports audio sample rates up to 108 kHz per channel in both Single-Speed and Double-Speed modes.