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Home » NEWEST Products » New by Manufacturer » Cirrus Logic » Cirrus Logic CS42L73 Smart Audio CODEC
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Cirrus Logic CS42L73 Smart Audio CODEC

Ultra Low Power Device for Mobile Audio and Telephony

The Cirrus Logic CS42L73 smart audio CODEC is a high-quality, ultra low-power audio CODEC for smart phone applications that allows these power-hungry devices to conserve energy and extend battery life by offloading audio-related tasks typically reserved for the applications processor. The CS42L73 features three serial audio ports and asynchronous sample rate converters, allowing this smart audio CODEC to manage the complex routing, processing, and mixing of a variety of multiformat audio signals while increasing overall system efficiency. This Cirrus Logic device has a rated power consumption as low as 4 mW during a voice call, the lowest power consumption of a product with asynchronous sample-rate converters and a digital mixing engine in the signal path. The CS42L73 audio CODEC features two analog-to-digital converters (ADCs) and four digital-to-analog converters (DACs) based on an advanced multibit Delta Sigma architecture.

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  • Stereo ADC
  • Dual Analog or Digital MIC Support
  • Dual MIC Bias Generators
  • Four DACs Coupled to Five Outputs: Ground-Centered Stereo Headphone Amp., Ground-Centered Stereo Line Output, Mono Ear Speaker Amplifier, Mono 1 W Speakerphone Amplifier, Mono Speakerphone Line Output for Stereo Speakerphone Expansion

  • Three Serial Ports with Asynchronous Sample Rate Converters
  • Digital Audio Mixing and Routing
  • Ultra Low Power Consumption: 3.5 mW Quiescent Headphone Playback


  • Smart Phones, UMPCs, and MIDI

CS42L73 Block Diagram

Diagram of CS42L73 in Smart Phone Application

  • Cirrus Logic
  • Audio
  • Semiconductors|Integrated Circuits