Communication ICs Speech network for telephones BA8216 The BA8216 is a speech network IC which possesses the basic functions required for handset communications.
In addition to amplifying signals from a transmitter and sending them to a telephone line, it also amplifies only reception signals from a telephone line and drives the receiver.
FApplications Telephones and telephone equipment FFeatures 1) Basic speech network functions built in.
S Handset transmit and receive circuits S DTMF transmit circuit S Key tone input circuit S Mute control and side tone masking circuits 2) Can be used with 1.
3kΩ loop circuit resistance and 100Ω telephone resistance.
FBlock diagram 3) A BTL circuit is use...

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