UTCMC34018 Datasheet PDF | Unisonic Technologies

Unisonic Technologies UTCMC34018

The UTC MC34018 speaker-phone integrated circuit incorporates the necessary functions to produce a high quality hands-free speaker-phone system. The applications include household and office speaker-phones, intercom systems, hand free kit for mobile phones, and others.

Part No.	UTCMC34018
Datasheet	UTCMC34018 Download
Manufacturer	Unisonic Technologies
Description	VOICE SWITCHED SPEAKER-PHONE CIRCUIT
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DESCRIPTION

SOP-28

FEATURES

*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 for speaker to minimize distortion. *Chip Select pin for active/stand by operation. *Volume control function for external volume control. *Standard 28-pin plastic DIP and SOP package. DIP-28

ABSOLUTE MAXIMUM RATINGS

(Ta=25°C,Voltages referred to pin 22) PARAMETER V+ terminal Voltage (pin 16) (pin 18) Speaker amplifier Ground(pin 14) VLC(pin 24) Storage temperature CS VALUE +12,-1.0 +12,-1.0 +3.0,-1.0 +VCC,-1.0 -65 ~ +150 UNIT V V V V °C RECOMMENDED OPERATION CONDITIONS PARAMETER V+ Terminal Vol...