KA2425AD PDF File ( Datasheet )

KA2425A INTRODUCTION SPEECH NETWORK WITH DIALER INTERFACE The KA2425A is telephone speech network integrated circuit which includes transmit amp, receive amp, side tone amp, DC loop interface function, DTMF input, voltage regulator for speech, a regulated output voltage for a dialer, and equalization circuit . 8-DIP-300A FEATURES Low voltage operation (1.5v : speech) Transmit, receive, side tone and DTMF level are controlled by external resistors Regulated voltage for dialer Loop length