UTCMC34018 - VOICE SWITCHED SPEAKER-PHONE CIRCUIT

Unisonic Technologies

Datasheet Details

The UTC MC34018 speaker-phone integrated circuit incorporates the necessary functions to produce a high quality hands-free speaker-phone system.

All necessary level detection and attenuation controls for a hand-free telephone included.
Background noise level monitoring with long time constant.
Background sound level compensation for transmit and receive levels as well as the background level.
Wide operating dynamic range through signal compression.
On-chip voltage regulators illuminate external regulators for lining operation.
Power audio amplifier for typical 100mW output (into 25 ohms)with peak limiting fo.

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