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Telephone circuit

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Telephone circuit

ModelDescriptionKey parametersPackage
SD34119SD34119 is a low-power audio amplifier IC.2V ~ 16VDIP8 / SOP8
SD34018A single-chip telephone call circuit that combines the necessary amplifier, attenuator, and several control functions, including a transmit and receive attenuator, a background noise level detection system, and an attenuator control system that responds to transmit and receive levels better than background noise. Equipped with a peripheral resistive container device, it can be made into a high-quality handsfree speakerphone system.6V~11VSOP28