MC34118 - VOICE SWITCHED SPEAKERPHONE

Motorola Semiconductor (now NXP Semiconductors)

Key Features

of a featurephone.
Improved Attenuator Gain Range: 52 dB Between Transmit and Receive.
Low Voltage Operation for Line--Powered.

MC34118 voice switched speakerphone by Motorola Semiconductor (now NXP Semiconductors) - Datasheet Preview

Datasheet Details

Part number	MC34118
Manufacturer	Motorola Semiconductor (now NXP Semiconductors)
File Size	681.05 KB
Description	VOICE SWITCHED SPEAKERPHONE
Datasheet	MC34118 Datasheet

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Other Datasheets by Motorola Semiconductor (now NXP Semiconductors)

Part Number	Description
MC34114	TELEPHONE SPEECH NETWORK
MC34115	CONTINUOUSLY VARIABLE SLOPE DELTA MODULATOR/DEMODULATOR
MC34117	Telephone Tone Riger
MC34119	LOW POWER AUDIO AMPLIFIER
MC34129	(MC33129 / MC34129) High Performance Current Mode Controller

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MC34118/D ARCHIVED - 6/2010 Voice Switched Speakerphone Circuit Silicon Monolithic Integrated Circuit The MC34118 Voice Switched Speakerphone Circuit incorporates the necessary amplifiers, attenuators, level detectors, and control algorithm to form the heart of a high quality hands--free speakerphone system. Included are a microphone amplifier with adjustable gain and MUTE control, Transmit and Receive attenuators which operate in a complementary manner, level detectors at both input and output of both attenuators, and background noise monitors for both the transmit and receive channels. A Dial Tone Detector prevents the dial tone from being attenuated by the Receive background noise monitor circuit.