Ultra Compact, Low Power Smart Codec with Dual Core DSP
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.
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Technologies
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/line 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 WLCSP package, 0.4-mm ball array
Parametric Specifications
| DACs | 3 |
| DAC Dynamic Range (dB) | 115 |
| DAC THD+N (dB) | -92 |
| Sample Rate (kHz) | 8-192 |
| Analog Power Supply (V) | 1.8 |
| Digital Power Supply (V) | 1.2; 1.8 |
| Power Consumption (mW) | 3.2-833 |
| Package | 63 WLCSP |
