XR-T6425 Datasheet | Exar

DESCRIPTION The XR-T6425 speakerphone IC is a low cost solution for the implementation of a hands-free telephone. It is a convenient way of carrying on conversation without using the handset. while the user is talking into a microphone and listening from a loudspeaker located on the desk. It is ideal for hands-free conference calls. The XR-T6425 contains most of the circuits to eliminate singing and excessive background noise in a single chip solution. FUNCTIONAL BLOCK DIAGRAM FEATURES Low Operating Voltage (4.5 V) Single Chip Speakerphone No External Adjustments Smooth T/R Switching Background Noise Detection and Suppression On-chip Hybrid Circuit BIAS Vee TXTJ RXT J TXM OUT Tx LOUT Tx GNF TXG OUT TXS IN DTMFIN VOL Tx e OMP Vo NET TXT 4 APPLICATIONS Speakerphones Inters Voice Operated Switches ORDERING INFORMATION Part Number XR-T6425CN XR-T6425CP Package Ceramic Plastic Operating Temperature O°C to 70°C O°C to...