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XR-T6420-2 - Speakerphone Audio Circuit

Description

The XR-T6420-2 is a monolithic integrated circuit for use in high performance speakerphone systems.

It is designed to be used with the XR-T6421 Speakerphone Control Circuit.

Features

  • Two Matched Variable Gain Cells Internal Microphone Amplifier Independent Control of Transmitting and Receiving Levels External Control of Gains and Frequency Response Enable and Mute Logic Pins.

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Other Datasheets by Exar (now MaxLinear)

Part Number Description
XR-T6420-1 Speakerphone Audio Circuit
XR-T6421 Speakerphone Control IC
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XR-T3590 Single Chip V.35 Transceiver

Full PDF Text Transcription

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XR-T6420-2 Speakerphone Audio Circuit GENERAL DESCRIPTION The XR-T6420-2 is a monolithic integrated circuit for use in high performance speakerphone systems. It is designed to be used with the XR-T6421 Speakerphone Control Circuit. The XR-T6420-2 contains the audio paths comprising the following: Two variable gain cells, a microphone amplifier, a transmitting amplifier, a receive amplifier, and a speaker amplifier. Mute and enable control logic of the variable gains cells is provided internally.
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