Model

Description

Operating voltage range

Accept attenuator gain

Transmit attenuator gain

Power amplifier gain

MIC amplifier gain

Packaging form

D34119

D34119 is a low-power audio amplifier integrated circuit

2V ~ 16V

~

~

~

~

DIP8 / SOP8

D34118

The hands-free voice communication circuit is composed of amplifier, level detector, attenuator, monitor, filter and control unit to realize quasi-duplex communication.

3.5V ～ 6.5V

49dB ～ 54dB

49dB ～ 54dB

~

80dB(open loop)

SOP28

D34018

The single-piece telephone talking circuit incorporates required amplifiers, attenuators, and several control functions, including transmit and receive attenuators, a background noise level detection system, and a attenuator control system that responds to transmit and receive electrical levels better than background noise. A high quality hands-free handle-type loudspeaker telephone system can be made with a peripheral blocking container.

6V ～ 11V

40dB ～ 48dB

40dB ～ 48dB

33dB ～ 35dB

32.5dB ～ 35dB

SOP28

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