PBL38812 Datasheet - Ericsson

PBL38812 Voice-switch circuit for Handsfree speakerphone TAM

The PBL 388 12 contains all the necessary circuitry, amplifiers, detectors, comparators and control functions to implement a high performance, voice-switched, ”hands-free ” function in an answering machine. The gain dynamics (attenuation between channels) is settable (25dB or 50dB) via CTR pin that .

PBL38812 Features

* Settable gain dynamics (25 or 50 dB).

* Low power consumption, totally 1.0mA at 3.3V typical.

* Background noise compensation in the transmitting channel with hold function.

* Exellent noise performance.

* Both channel input amplifiers have balanced inputs.

PBL38812_Ericsson.pdf