CS42888-CQZ

Codecs Overview

The CS42888-CQZ is a high-performance audio codec featuring four 24-bit analog-to-digital converters and eight 24-bit digital-to-analog converters. It supports system sampling rates up to 192 kHz with a dynamic range of 105 dB for ADC (differential) and 108 dB for DAC (differential). The device operates on a digital supply voltage of 3.14 V to 5.25 V and an analog supply of 3.14 V to 5.25 V, housed in a 64-LQFP package.

Codecs Feature Summary

• Integrates four multi-bit delta-sigma ADCs and eight multi-bit delta-sigma DACs for high-fidelity audio processing.
• Supports industry-standard Time Division Multiplexed (TDM) serial interfaces alongside I²C and SPI host control ports.
• Includes Popguard technology for output transient control and programmable high-pass filters for DC offset calibration.

Codecs Applications

• A/V receivers
• DVD receivers
• Automotive audio systems

Codecs Procurement Notes

Verify component authenticity through authorized distributors or the manufacturer directly. Confirm the specific ordering suffix matches the required package and temperature grade. Check for recent Product Change Notifications regarding manufacturing updates or discontinuation status before finalizing procurement plans.

Codecs Selection Notes

Select this model for designs requiring wide dynamic range and low distortion. Ensure the host processor supports the TDM serial interface format. Verify that the power supply rails align with the specified 3.14 V to 5.25 V operating ranges for both analog and digital sections.

Codecs Part Context

This component belongs to the Cirrus Logic CS42888 series of audio codecs. It is designed for applications demanding high channel counts and superior audio quality. The CQZ suffix indicates the Commercial temperature grade (-10°C to +70°C) and LQFP packaging.

Codecs Replacement Considerations

Consult official documentation for direct substitutes. Alternative models within the same family may offer different pinouts or feature sets. Verify compatibility with existing PCB layouts and software configurations when considering replacements.

Codecs FAQ

What is the maximum sampling rate supported by the CS42888?

The CS42888 supports system sampling rates up to 192 kHz.

Does the device support single-ended inputs and outputs?

Yes, the CODEC is capable of operation with either differential or single-ended inputs and outputs.

How is the digital volume control implemented?

Digital volume control is provided for each ADC channel and all eight DAC channels, featuring logarithmic adjustment capabilities.