CS5344-CZZ

ADCs/DACs - Special Purpose Overview

The CS5344-CZZ is a commercial-grade, 24-bit stereo audio analog-to-digital converter from Cirrus Logic. It utilizes a 3rd-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 outputs serial data in Left-Justified format. Powered by a single +3.3 V or +5 V supply with consumption under 40 mW, it integrates low-latency digital filtering and high-pass filters for DC offset removal. Housed in a 10-pin TSSOP package, it operates within a temperature range of -40°C to +85°C.

ADCs/DACs - Special Purpose Feature Summary

• Multi-Bit Delta-Sigma Architecture: Uses a 3rd-order modulator and digital filter to eliminate the need for external anti-aliasing components.
• Left-Justified Serial Interface: Outputs 24-bit serial audio data compatible with Left-Justified format standards.
• Flexible Clocking Modes: Supports both Master and Slave operations with automatic speed detection in Slave Mode.
• High-Impedance Sampling Network: Internal sampling circuitry reduces the requirement for external op-amps or conditioning components.

ADCs/DACs - Special Purpose Applications

• Set-top boxes requiring wide dynamic range audio processing
• DVD-karaoke players and DVD recorders
• A/V receivers needing low noise and negligible distortion
• Automotive audio systems operating in extended temperature ranges

ADCs/DACs - Special Purpose Procurement Notes

Verify the ordering suffix 'CZZ' confirms the Commercial grade (-40°C to +85°C) and Rail packaging. Ensure the design requires Left-Justified output; if I²S format is needed, the CS5343 variant must be selected instead. Confirm power supply voltage compatibility (3.3 V or 5 V) and check for end-of-life status through official manufacturer channels before finalizing procurement.

ADCs/DACs - Special Purpose Selection Notes

Select the CS5344-CZZ when Left-Justified serial audio formatting is required rather than I²S. The device supports input sample rates from 4 kHz to 108 kHz. In Master Mode, clock ratios are configured via pull-up resistors on LRCK and SCLK pins during power-up. For Slave Mode, the device automatically detects single or double-speed modes based on input clocks. Ensure source impedance remains below 2.5 kΩ for optimal THD+N performance.

ADCs/DACs - Special Purpose Part Context

The CS5344 belongs to the CS534x family of multi-bit audio ADCs, distinguished by its specific support for Left-Justified audio data formats. It shares the same core architecture and pinout as the CS5343, which supports I²S format. Both devices utilize the same 10-pin TSSOP package and offer identical dynamic performance metrics, differing primarily in their serial interface timing and data alignment specifications.

ADCs/DACs - Special Purpose Replacement Considerations

The CS5343-CZZ serves as a functional alternative if the application requires I²S serial audio format instead of Left-Justified. Other Cirrus Logic audio ADCs such as the CS5341 or CS5351 offer higher dynamic ranges but differ in package size, pin count, and maximum sample rates, requiring schematic and firmware adjustments.