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TEMIC Semiconductors - Low Voltage Standard Telephone Circuit with 13 Memories

Numéro de référence U3761MB-ASD
Description Low Voltage Standard Telephone Circuit with 13 Memories
Fabricant TEMIC Semiconductors 
Logo TEMIC Semiconductors 





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U3761MB-ASD fiche technique
U3761MB
Low Voltage Standard Telephone Circuit with 13 Memories
Description
TEMIC’s low voltage telephone circuit, U3761MB
performs all the speech and line interface functions
required in an electronic telephone set, the tone ringer, the
pulse and DTMF dialing with redial, notice function, and
13 memories.
Features
Speech Circuit
D Adjustable DC characteristic
D Symmetrical input of microphone amplifier
D Receiving amplifier for dynamic or
piezo-electric earpieces
D Automatic line loss compensation
Dialer
D DTMF / pulse switchable
D Pulse dialling 66/33 or 60/40 or DTMF dialling
selectable by pin
D Selectable flashing duration by key pad
D Pause function
D Last number redial up to 32 digits
D Three by 32 digits direct (one touch) memory
D Ten by 16 digits indirect (two touch) memory
D Notice function up to 32 digits
D Standard low-cost crystal 3.57 MHz or
ceramic resonator
Tone Ringer
D 2 Tone ringer
D Adjustable volume
D RC oscillator
D Adjustable threshold
Benefits
D Low number of external components
D High quality through one IC solution
TELEFUNKEN Semiconductors
Rev. A2, 23-Apr-97
Preliminary Information
1 (23)

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