Features: DC characteristic adjustable Receive gain adjustable Symmetrical input of microphone amplifier Anti-clipping in transmit direction Automatic line-loss compensation Symmetrical output of earpiece amplifier Built-in ear protection DTMF and MUTE input Adjustable sidetone suppression indepe...
U4037B-N: Features: DC characteristic adjustable Receive gain adjustable Symmetrical input of microphone amplifier Anti-clipping in transmit direction Automatic line-loss compensation Symmetrical output of e...
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Parameter |
Symbol |
Value |
Unit |
Line current |
IL |
140 |
mA |
DC line voltage |
VL |
12 |
V |
Maximum input current |
IRING |
15 |
mA |
Junction temperature |
Tj |
125 |
°C |
Ambient temperature |
Tamb |
25 to +75 |
°C |
Storage temperature |
Tstg |
55 to +150 |
°C |
Total power dissipation, Tamb = 60°C |
Ptot |
520 |
W |
The µC-controlled telephone circuit U4037B-N is a lin-ear integrated circuit for use in telephone sets. It containsthe speech circuit, tone-ringer interface, sidetone equiva-lent and ear-protection rectifiers. The U4037B-N is linepowered and contains all components necessary foramplification of signals and adaptation to the line.