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XR-T6421

Exar
Part Number XR-T6421
Manufacturer Exar
Description Speakerphone Control IC
Published Apr 5, 2018
Detailed Description XR-T6421 Speakerphone Control IC GENERAL DESCRIPTION The XR-T6421 is a monolithic integrated circuit for use in high p...
Datasheet PDF File XR-T6421 PDF File

XR-T6421
XR-T6421

Overview
XR-T6421 Speakerphone Control IC GENERAL DESCRIPTION The XR-T6421 is a monolithic integrated circuit for use in high performance speakerphone systems.
It is designed to provide all control functions for the XR-T6420-1 or XR-T 6420-2 speakerphone audio circuit.
The XR-T6421 contains the level sensors and logic necessary to change the attenuation in 'the transmitting or receiving path in order to avoid acoustic feedback.
Circuitry is included to detect bacground noise level and provide a preset amount of attenuation in each path when no voice is present.
FEATURES Low Current Background Noise Detection and Suppression External Control of Attach and Decay Time Constants Independent Control of ...


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