XR-T6420-2 Datasheet (Exar) - Speakerphone Audio Circuit

XR-T6420-2, Speakerphone Audio Circuit

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 transmitt

XR-T6420-2 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 APPLICATIONS Speakerphones Intercoms Voltage Controlled Amplifiers ABSOLUTE MAXIMUM RATINGS Power Supp