MC34018L /SO-28

Керований голосом спікерфон

 The  UTC  MC34018  speaker-phone  integrated  circuit  includes  all  the active circuitry and control functions to implement a high quality hands-free  telephone  system.  The  circuit  includes  a  microphone  amplifier, a speaker amplifier, level detectors, a background sound level  monitoring  system  in  both  the  transmit  and  receive  channels  and  an  attenuation  system  which  can  control  the  transmit  and  receive levels as well as the background level. The  applications  include  household  and  office  speaker-phones,  intercom systems, hand free kit for mobile phones, and others.