CS5345K-CQZ

ADCs/DACs - Special Purpose Overview

The CS5345K-CQZ is a stereo audio analog-to-digital converter (ADC) from Cirrus Logic, housed in a 48-pin LQFP package. It integrates an analog multiplexer, programmable gain amplifier (PGA), and multi-bit delta-sigma modulator to perform stereo A/D conversion at up to 24-bit resolution and 192 kHz sampling rates. The device features a 104 dB dynamic range, -95 dB THD+N, and selectable serial audio interfaces including Left-Justified and I²S formats. It operates on +3.3 V to +5 V supplies with direct interface capability for logic levels ranging from 1.8 V to 5 V.

ADCs/DACs - Special Purpose Feature Summary

• Stereo 6:1 input multiplexer with integrated PGA offering ±12 dB gain in 0.5 dB steps
• Multi-bit delta-sigma modulator delivering 104 dB dynamic range and -95 dB THD+N
• Supports sampling rates up to 192 kHz with selectable Left-Justified or I²S serial output
• Integrated microphone bias supply and +32 dB gain stage for low-noise mic inputs

ADCs/DACs - Special Purpose Applications

• Professional audio recording equipment
• High-fidelity consumer audio systems
• Broadcasting and post-production hardware

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'K' against the manufacturer's official ordering information to confirm temperature grade and packaging details. Confirm current production status as legacy components may have limited availability or end-of-life restrictions.

ADCs/DACs - Special Purpose Selection Notes

Select this component for designs requiring high-resolution stereo digitization with flexible input routing. Ensure the system clocking supports the required master/slave modes and that the 48-pin LQFP footprint fits the PCB layout constraints.

ADCs/DACs - Special Purpose Part Context

This part belongs to the CS5345 family of stereo audio ADCs. It is pin-compatible with the CS4245, facilitating potential design swaps or upgrades within compatible system architectures without major schematic changes.

ADCs/DACs - Special Purpose Replacement Considerations

The CS4245 is documented as pin-compatible with the CS5345. Verify functional equivalence and register compatibility before substitution.