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U4087B

Part Number	U4087B
Manufacturer	TEMIC Semiconductors
Description	Low Voltage Voice Switch Interface Circuit
Published	Mar 8, 2010
Detailed Description	www.DataSheet4U.com U4087B Low Voltage Voice Switch Interface Circuit for Hands-free Operation in Telephone Descriptio...
Datasheet	U4087B PDF File

Overview

www.
DataSheet4U.
com U4087B Low Voltage Voice Switch Interface Circuit for Hands-free Operation in Telephone Description The voice switch interface circuit U4087B is a linear integrated circuit for improvement of handsfree performance of U4090B system.
The U4087B provides an optimized interface to U4090B, the necessary level detectors and switching control for a properly operating speakerphone.
The detection sensitivity and timing are externally controllable.
Additionally, the U4087B provides a back- ground noise monitor which makes the circuit insensitive to room noise.
The Block diagram shows level detectors, back ground noise monitor.
Due to low voltage operation it can be operated via p...

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