CS42L73-CRZR

Codecs Overview

The CS42L73-CRZR is an ultra-low power mobile audio and telephony CODEC manufactured by Cirrus Logic. It features a stereo ADC with dual analog or digital microphone support and four DACs coupled to five outputs, including ground-centered stereo headphone and line amplifiers, mono ear speaker amplifier, and mono speakerphone amplifier. The device includes three serial ports with asynchronous sample rate converters and supports native master clock rates of 6/12/24 MHz, 13/26 MHz, and 19.2/38.4 MHz. Operating voltage ranges from 3.00 V to 5.25 V for the speakerphone amplifier section, while the package is identified as BGA-65.

Codecs Feature Summary

• Integrated high-efficiency power management with internal LDO regulators and charge pumps to reduce system power consumption.
• Flexible speakerphone amplifier powering with independent cycling capabilities within the specified voltage range.
• Comprehensive power down management allowing individual control over ADCs, digital interfaces, and output amplifiers.

Codecs Applications

• Smartphones
• Ultra Mobile Personal Computers (UMPCs)
• Mobile Internet Devices (MIDs)

Codecs Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for specific environmental certificates such as REACH registration if required for your region. Ensure the ordering suffix matches the exact package and tape-and-reel specifications needed for your assembly process.

Codecs Selection Notes

Select this component for portable applications requiring low power consumption and integrated audio processing. Verify that the system design accommodates the 3.00 V to 5.25 V supply range for the speakerphone section. Ensure compatibility with the required I2C control port speed and digital audio interface formats before finalizing the bill of materials.

Codecs Part Context

The CS42L73 belongs to Cirrus Logic's family of highly integrated, low-power audio CODECs designed specifically for portable electronics. This series emphasizes battery life extension through advanced power management techniques while maintaining high audio quality for voice and multimedia applications in compact form factors.

Codecs Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official Cirrus Logic resources for current obsolescence notices or recommended upgrades within the same product family.