New Product Introduction

Cirrus Logic CS43130/131

Cirrus Logic CS43130/131 - low power HiFi headphone DAC with a high-fidelity headphone amplifier

Cirrus Logic CS43130 product image

The CS43130 combines a next generation, low power audio DAC with a high-fidelity headphone amplifier to provide a superior system-level audio performance without draining battery life. This IC minimizes board space requirements while enabling performance and features to drive design differentiation.

The CS43130 features a high impedance of 600 Ω, and inter channel isolation of >110 dB. To minimize pre-echos and ringing artifacts, the CS43130 is designed with proprietary digital-interpolation filters that support five selectable digital filter responses. Filtering options include low group delay with pseudo-linear phase and a fast or slow roll-off. Volume matching of the analog output levels and channel mixing enable a seamless transition between the DSD and PCM playback paths.

The onboard low noise, ground-centered headphone amplifier provides proprietary AC impedance detection to support headphone fingerprinting to provide a consistent and transparent audio experience for the end user regardless of transducer impedances or frequency responses. The amplifier also supports adaptive post processing for customer bundled and third party headphones/headsets. An integrated auxillary audio input and "click-less" switch is provided for non-high-fidelity use cases.

Features & benefits

  • 32-bit resolution, up to 384kHz sampling frequency
  • Superior system-level audio performance
  • 130dB (A-weighted)dynamic range
  • -115dB (unw.) THD+N (CS43131)
  • -108dB (unw.)THD+N (CS43130)
  • >110 dB interchannelisolation
  • 0.55 uVrmsidle channel noise
  • Low-power playback prolongs battery life with only 23mW power consumption
  • Integrated aux audio input and click-less switch for non-HiFiuse cases

Block diagram

Cirrus Logic CS43130 Block Diagram

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