CS5345K-CQZR

ADCs/DACs - Special Purpose Overview

The CS5345K-CQZR is a stereo audio analog-to-digital converter (ADC) from Cirrus Logic, packaged in a 48-pin LQFP. It features a multi-bit delta-sigma modulator delivering 104 dB dynamic range and -95 dB THD+N at sample rates up to 192 kHz. The device integrates a 6:1 stereo input multiplexer, programmable gain amplifier (PGA), and microphone bias supply. It supports serial audio interfaces including Left-Justified and I²S formats with selectable master or slave modes. Operating voltages for analog and digital supplies range from +3.3 V to +5 V, while logic levels interface directly with 1.8 V to 5 V systems.

ADCs/DACs - Special Purpose Feature Summary

• Multi-bit delta-sigma architecture providing 104 dB dynamic range and -95 dB THD+N
• Integrated 6:1 stereo input multiplexer with PGA offering ±12 dB gain in 0.5 dB steps
• Supports sampling rates up to 192 kHz with selectable Left-Justified or I²S serial interfaces
• Includes dedicated microphone inputs with +32 dB gain stage and low-noise bias supply

ADCs/DACs - Special Purpose Applications

• Professional audio recording equipment
• Broadcasting and mixing consoles
• High-fidelity consumer audio players

ADCs/DACs - Special Purpose Procurement Notes

Verify component authenticity through authorized distributors. Confirm package integrity upon receipt. Check datasheet revision DS658F6 for updated specifications. Ensure proper ESD handling during storage and installation. Validate power supply decoupling requirements before integration.

ADCs/DACs - Special Purpose Selection Notes

Select this model for applications requiring high-resolution stereo conversion with integrated signal conditioning. Consider the 48-pin LQFP footprint for PCB layout. Verify compatibility with system clock frequencies and serial interface protocols. Evaluate thermal performance within the commercial temperature range of -10°C to +70°C.

ADCs/DACs - Special Purpose Part Context

This component belongs to the CS5345 series of audio ADCs. It is pin-compatible with the CS4245, facilitating potential design upgrades or replacements. The K suffix indicates the commercial temperature grade variant. The CQZR suffix denotes the specific tape-and-reel packaging configuration.

ADCs/DACs - Special Purpose Replacement Considerations

The CS4245 is a pin-compatible alternative within the same family. Verify register compatibility and software configuration when substituting. Ensure mechanical dimensions match the existing PCB footprint.