CS47L35-CWZR

Digital Signal Processor Dsp Overview

The CS47L35-CWZR is a low-power audio hub integrating a programmable multicore DSP and a high-performance audio codec. It features three DSP cores delivering 450 MIPS, supporting multimic noise reduction, echo cancellation, and trigger word detection. The device includes an integrated stereo headphone driver (30 mW into 32 Ω), a mono Class D speaker driver (2.7 W), and PDM outputs. It supports up to six analog or four digital microphone inputs with a 101-WLCSP package.

Digital Signal Processor Dsp Feature Summary

• Multicore Audio DSP: Three programmable cores providing 450 MIPS for advanced signal processing.
• High-Fidelity Codec: Integrated multichannel 24-bit codec with 101-dB mic SNR and 122-dB headphone playback SNR at 48 kHz.
• Flexible Connectivity: Supports SLIMbus, I2C, SPI, and three digital audio interfaces (AIF1-3) with TDM support.
• Output Drivers: Includes stereo headphone/earpiece drivers, a 2.7-W Class D speaker amplifier, and dual-channel PDM outputs.

Digital Signal Processor Dsp Applications

• Smartphones
• Tablets
• Mobile Internet Devices

Digital Signal Processor Dsp Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status and lead times directly with Cirrus Logic Inc. or authorized distributors prior to procurement.

Digital Signal Processor Dsp Selection Notes

Select this component for designs requiring integrated multimicrophone beamforming and acoustic echo cancellation in portable devices. Ensure the system architecture accommodates the required power domains (1.2 V core, 1.8 V analog, and 4.2 V speaker supply). Verify that the host processor supports the selected control interface (SLIMbus, SPI, or I2C).

Digital Signal Processor Dsp Part Context

The CS47L35 belongs to the Smart Codec family from Cirrus Logic. It combines a flexible DSP engine with a high-performance audio hub codec. This integration reduces bill-of-materials count by consolidating audio processing, codec, and amplifier functions into a single small WLCSP package.

Digital Signal Processor Dsp Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.