Low-Power Audio DSP with Microphone Interface and Mono Differential Headphone Driver

The CS47L63 is a high-performance low-power audio DSP for earbud headphones and other portable audio devices. The CS47L63 combines a programmable Halo Core DSP with a variety of power-efficient fixed-function audio processors. The high-performance DAC and differential output driver are optimized for direct connection to the external headphone load. The Halo Core DSP is integrated within a fully flexible, all-digital mixing and routing engine with sample-rate converters, for wide use-case flexibility. The CS47L63 supports up to four analog inputs or up to four PDM digital inputs. Low-power input modes are available for always-on (e.g., voice-trigger) functionality using either analog or digital input. Two digital audio serial ports are provided, each supporting multichannel operation at sample rates up to 192 kHz.  Two FLLs are integrated, providing support for a wide range of system-clock frequencies. The CS47L63 is configured using a control interface which supports I2C and SPI modes of operation. デバイスは1.8 Vおよび1.2 V電源を使用します。

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テクノロジー

スマート・コーデック

特長

  • Mono differential output headphone driver
  • Audio playback up to 192 kHz sample rate
  • SNR 99 dB, mic input @ 48 kHz
  • SNR 120 dBのヘッドフォン再生
  • 全高調波歪みおよびノイズ -93 dB(THD+N)
  • 4 analog microphone (DMIC) inputs
  • 柔軟なクロック、低周波数同期ループ(FLL)で32 kHzまでの基準クロックに対応
  • 最大12のGPIOピン
  • 低電力(10 µA)スリープ・モード
  • 1.8 Vおよび1.2 V電源で駆動
  • Small WLCSP package, 0.4 mm staggered 61-ball array

パラメトリック仕様

DAC 1
ADC 4
DACダイナミック・レンジ(dB) 108
DAC THD+N (dB) -93
ADC THD+N (dB) -87
サンプル・レート(kHz) 0~192
アナログ電源(V) 1.8
デジタル電源(V) 1.2
パッケージ 61 WLCSP

ソフトウェアとツール

CS47L63 Setup

Jun 11, 2021, RevA 1.0.57 : 7.5 Mb

詳細

包括的なソリューション