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CS6420

Part Number	CS6420
Manufacturer	Cirrus Logic
Description	Full-Duplex Speakerphone Chip
Published	Feb 13, 2018
Detailed Description	CS6420 Full-Duplex Speakerphone Chip Features l Single-chip full-duplex hands-free operation l Automatic gain control ...
Datasheet	CS6420 PDF File

Overview

CS6420 Full-Duplex Speakerphone Chip Features l Single-chip full-duplex hands-free operation l Automatic gain control l Optional 34 dB microphone preamplifier l Integrated mute and volume control l Integrated 80 dB IDR dual codec l Speech-trained Network and Acoustic Echo Cancellers l Powerdown mode l Microcontroller Interface General Description Most modern speakerphones use half-duplex operation, which switches transmission between the far-end talker and the speakerphone user.
This is done because the acoustic coupling between the speaker and microphone is much higher in speakerphones than in handsets where the coupling is mechanically suppressed.
The CS6420 enables full-duplex conversa...

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