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CS42L73

Cirrus Logic
Part Number CS42L73
Manufacturer Cirrus Logic
Description Ultra Low Power Mobile Audio and Telephony CODEC
Published Jul 17, 2010
Detailed Description CS42L73 Ultralow Power Mobile Audio and Telephony CODEC Product Overview  Stereo analog-to-digital converter (ADC)  ...
Datasheet PDF File CS42L73 PDF File

CS42L73
CS42L73

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.
8-mW quiescent headphone playback Applications  Smart phones, ultramobile PCs, and mobile Internet devices System 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 speakerphone amplifier powering – 3.
00–5.
25 V range – Independent cycling  Power-down management – Individual controls for ADCs, digital mic interface, mic bias generators, serial ports, and output amplifiers and associated DACs  Programmable thermal overload notification  High-speed I²C™ control port (400 kHz) (Features continued on page 2) VL VD_FILT MCLK1 MCLK2 LDO VD_FILT MCLK Control Port Auxiliary Serial Port Audio Serial Port Voice Serial Port Digital MIC Interface Level Shifters Control Port Auxiliary Serial Port SDIN ASRC ASRC SDOUT Audio Serial Port SDIN ASRC ASRC SDOUT Voice Serial Port SDIN ASRC ASRC SDOUT Digital MIC Interface VA VA CS42L73 Digital Processing Digital Mixer MIC/Line Input Path Auxiliary Serial Port Audio Serial Port `+ Voice Serial Port VCP +VCP_FILT -VCP...


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