Datasheet4U Logo Datasheet4U.com

BL34118 - Voice Switched Speakerphone

Description

Filter output.

Output impedance is less than 50 ohms.

Filter input.

Features

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

📥 Download Datasheet

Datasheet preview – BL34118

Datasheet Details

Part number BL34118
Manufacturer SHANGHAI BELLING
File Size 580.87 KB
Description Voice Switched Speakerphone
Datasheet download datasheet BL34118 Datasheet
Additional preview pages of the BL34118 datasheet.
Other Datasheets by SHANGHAI BELLING

Full PDF Text Transcription

Click to expand full text
www.DataSheet4U.com BL34118 Voice Switched Speakerphone Circuit BL34118 The BL34118 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.
Published: |