CS53L30-CNZ

ADCs/DACs - Special Purpose Overview

The CS53L30-CNZ is a low-power, quad-channel microphone analog-to-digital converter (ADC) manufactured by Cirrus Logic. It features four dedicated microphone bias voltages to enhance channel-to-channel isolation, supporting advanced beamforming algorithms. The device integrates digital signal processing capabilities, including high-pass filters, noise gates, and volume control, for pre-processing audio signals. It operates on a single power supply within the voltage range of 1.71V to 1.89V. The component utilizes an I2S digital interface and is housed in a 30-UFBGA, WLCSP package. It supports a sampling rate of 16k samples per second with 24-bit resolution.

ADCs/DACs - Special Purpose Feature Summary

• Quad-channel architecture with dedicated microphone bias for improved channel separation
• Integrated digital signal processing including high-pass filters and noise gates
• Ultra-low power consumption, specified at less than 2.5mW per channel
• I2S digital output interface for direct connection to host processors

ADCs/DACs - Special Purpose Applications

• Voice processing systems requiring enhanced beamforming performance
• Active noise cancellation (ANC) front-end processing
• AI voice capture devices such as smart speakers and translation tools
• Embedded systems utilizing far-field microphone arrays

ADCs/DACs - Special Purpose Procurement Notes

The CS53L30-CNZ is listed as obsolete or discontinued by the manufacturer. Verification of current availability requires checking authorized distributors for remaining stock or end-of-life status updates. Designers should consider alternative components for new production runs due to the discontinuation notice dated April 12, 2023.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring low-power, multi-microphone input with integrated preprocessing. Ensure the design accommodates the specific 1.71V to 1.89V supply voltage range. Verify that the host system supports the required I2S interface and 30-pin WLCSP packaging constraints. Note that the device is discontinued, impacting long-term supply chain stability.

ADCs/DACs - Special Purpose Part Context

The CS53L30 belongs to Cirrus Logic's family of ultra-low power audio ADCs designed for microphone inputs. It is part of the CS53L30 series, which includes variants like the CS53L30-CWZR and CS53L30-CNZR. These devices are engineered to offload audio processing tasks from the main CPU, enabling efficient voice recognition and noise suppression in portable electronics.

ADCs/DACs - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the discontinued status, engineers must evaluate other Cirrus Logic audio ADCs or competitors' quad-channel solutions based on pin compatibility and functional requirements.