PBL38814
PBL38814 is Voice - switched 2-channel Circuit with loudspeaker amplifier manufactured by Ericsson.
PRELIMINARY
May 1998
PBL 388 14 Voice
- switched 2-channel Circuit with loudspeaker amplifier
Description.
The PBL 388 14 contains all the necessary circuitry, amplifiers, detectors, parator and control functions to implement a high performance voice switched handsfree two- way munication system. The gain dynamics (attenuation between channels) is selectable (25dB or 50dB) via a separate pin. A background noise detector in the transmitting channel reduces the influence of continuous external noise signals to the switching . The PBL 388 14 is designed for mains powered handsfree telephones, vehicular mobile telephone handsfree systems and handsfree inter systems. Automatic volume...
