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WM8974

Part Number	WM8974
Manufacturer	Cirrus Logic
Description	Mono CODEC
Published	May 8, 2020
Detailed Description	WM8974 Mono CODEC with Speaker Driver DESCRIPTION The WM8974 is a low power, high quality mono CODEC designed for port...
Datasheet	WM8974 PDF File

Overview

WM8974 Mono CODEC with Speaker Driver DESCRIPTION The WM8974 is a low power, high quality mono CODEC designed for portable applications such as Digital Still Camera or Digital Voice Recorder.
The device integrates support for a differential or single ended mic, and includes drivers for speakers or headphone, and mono line output.
External component requirements are reduced as no separate microphone or headphone amplifiers are required.
Advanced Sigma Delta Converters are used along with digital decimation and interpolation filters to give high quality audio at sample rates from 8 to 48ks/s.
Additional digital filtering options are available in the ADC path, to cater for application filtering such as ‘wind noise reduction’, plus an advanced mixed signal ALC function with noise gate is provided.
The digital audio interface supports A-law and -law companding.
An on-chip PLL is provided to generate the required Master Clock from an external reference clock.
The PLL clock can also be out...

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