CS47L35 Overview
The CS47L35 combines an advanced DSP feature set with a highly integrated audio codec to deliver the Cirrus Logic voice and audio experience for mid-tier smartphones. The CS47L35 features a 450 MIPS three-core audio signal processor with a high performance 4/3 channel, 24-bit high-fidelity codec embedded with SoundClear® software technology to support multiple concurrent audio functions including multi-microphone wideband noise reduction, speaker protection, acoustic echo cancellation (AEC), low power single and multi-trigger word detection and engine support, and advanced speech and media enhancement.
Product Features
450 MIPS, 450 MMAC multi-core audio-signal processor
Sensor hub connectivity, with event time-stamp functions
Programmable wideband, multi-mic audio processing
Four ADCs, 100 dB SNR microphone input, three DACs, 122 dB SNR headphone playback
Integrated multichannel 24-bit hi-fi audio hub codec
Up to six analog or four digital microphone inputs
Stereo headphone/earpiece/line output driver
Earpiece, speaker and digital (PDM) output interfaces
Three full digital audio interfaces
Flexible clocking, derived from MCLKn, AIFn or SLIMbus
Low power frequency-locked loops (FLLs) support reference clocks down to 32 kHz
Configurable functions on up to 16 GPIO pins
Integrated regulators and charge pumps
Small WLCSP package, 0.4-mm ball array
Parametric Specifications
| Package | 101 WLCSP |
| Analog Input Type | Single-ended-Differential |
| Analog Output Type | Single-ended-Differential |
| Channels In | 6 |
| Channels Out | 4 |
| Control Interface | SPI/I²C |
| ADC Dynamic Range (dB) | 101 |
| DAC Dynamic Range (dB) | 115 |
| ADC THD+N (dB) | -86 |
| DAC THD+N (dB) | -93 |
| Sample Rate (kHz) | 8-192 |
| Analog Power Supply (V) | 1.8 |
| Digital Power Supply (V) | 1.2-1.8 |
| Logic Power Supply (V) | 1.8-3.3 |
| Power Consumption (mW) | 2.4-759 |
| DSP Included | Yes |
Design Resources
Schematic and Layout
CDB47L35 M-1 Evaluation Board Resources
Rev 2 | 2 MbSeptember 2017
Datasheet
CS47L35 Datasheet
DS1085F3 | 6 MbSeptember 2018
Application Note
CS47L35 Example Power Up Timing
TN_0665 | 311 KbAugust 2017