Cirrus Logic, Inc. Ultra Compact, Low Power Smart Codec with Dual Core DSP CS47L24

The CS47L24 combines an advanced 300 MIPS dual core DSP with a high performance audio hub codec embedded with SoundClear® software technology to add “voice” to mobile, wearable and smart home devices. SoundClear Control enables 'always on' voice with the option of local command and control — all at power levels that are kind on battery life. This highly integrated IC features a variety of power efficient, fixed function, audio-processing blocks supported by a fully flexible, all digital mixing and routing engine with sample rate converters to provide design flexibility across a variety of platforms. The power, clocking and output driver architectures of the CS47L24 are designed to maximize battery life for voice, music and standby modes using 1.8 V and 1.2 V external supplies. Features 300 MIPS, 300MMAC dual-core audio-signal processor Enhanced DRE processing (eDRE) for 121dB SNR Fixed function signal-processing functions Multi-channel asynchronous sample-rate conversion Integrated multi-channel 24-bit hi-fi audio hub codec Four digital microphone inputs (two stereo interfaces) Stereo headphone/earpiece/l ine output driver Mono 2 W Class D speaker output driver Three full digital audio interfaces Flexible clocking, derived from MCLKn or AIFn Two low power frequency-locked loops (FLLs) support reference clocks down to 32 kHz Configurable functions on two GPIO pins Integrated regulators and charge pumps Small WCSP package, 0.4-mm ball array