PBL38813 Datasheet - Ericsson

PBL38813 Voice-switched Speakerphone Circuit with built in loudspeaker amplifier

The PBL 388 13 contains all the necessary circuitry, amplifiers, detectors, comparator and control functions to implement a high performance, voice-switched, loudspeaking, ”hands-free ” telephone. The gain dynamics (attenuation between channels) is selectable (25dB or 50dB) via a separate pin. A ba.

PBL38813 Features

* Minimum of external components needed for function. Selectable gain dynamics. (25 or 50 dB) Direct telephone line powered solution (patented). Low power consumption: ≈1mA at 3.3V (typical) for speech switching, audio power amplifier quiscent current ≈1mA. Drives an 25 - 50 ohm loudspeaker without a

PBL38813_Ericsson.pdf