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CS42L73 Datasheet Ultra Low Power Mobile Audio and Telephony CODEC

Manufacturer: Cirrus Logic

Overview: CS42L73 Ultralow Power Mobile Audio and Telephony CODEC Product Overview  Stereo analog-to-digital converter (ADC)  Dual analog or digital mic support  Dual mic bias generators  Four digital-to-analog converters (DACs) coupled to five outputs – Ground-centered stereo headphone amp. – Ground-centered stereo line output – Mono ear speaker amplifier – Mono 1-W speakerphone amplifier – Mono speakerphone line output for stereo speakerphone expansion  Three serial ports with asynchronous sample rate converters  Digital audio mixing and routing Ultralow Power Consumption  3.

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Key Features

  •  Native (no PLL required) support for 6/12/ 24 MHz, 13/26 MHz, and 19.2/38.4 MHz master clock rates and typical audio clock rates  Integrated high-efficiency power management reduces power consumption.
  • Internal LDO regulator to reduce internal digital operating voltage to VL/2 V.
  • Step-down charge pump provides low headphone/line out supply voltage.
  • Inverting charge pump accommodates low system voltage by providing negative rail for HP and line amplifier  Flexible sp.

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