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U3761MB: DescriptionLow Voltage Standard Telephone Circuit with 13 Memories; File Size259KB，23 Pages; ManufacturerTEMIC; Websitehttp://www.temic.de/

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Low Voltage Standard Telephone Circuit with 13 Memories

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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

Last number redial up to 32 digits

Three by 32 digits direct (one touch) memory

Ten by 16 digits indirect (two touch) memory

Notice function up to 32 digits

Standard low-cost crystal 3.57 MHz or

ceramic resonator

Adjustable DC characteristic

Symmetrical input of microphone amplifier

Receiving amplifier for dynamic or

piezo-electric earpieces

Automatic line loss compensation

Dialer

DTMF / pulse switchable

Pulse dialling 66/33 or 60/40 or DTMF dialling

selectable by pin

Tone Ringer

2 Tone ringer

Adjustable volume

RC oscillator

Adjustable threshold

Selectable flashing duration by key pad

Pause function

Benefits

Low number of external components

High quality through one IC solution

TELEFUNKEN Semiconductors

Rev. A2, 23-Apr-97

1 (23)

Preliminary Information

U3761MB Related Products

	U3761MB	U3761MB-AFN	U3761MB-AFNG3	U3761MB-ASD
Description	Low Voltage Standard Telephone Circuit with 13 Memories	Low Voltage Standard Telephone Circuit with 13 Memories	Low Voltage Standard Telephone Circuit with 13 Memories	Low Voltage Standard Telephone Circuit with 13 Memories

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Shortcut: L0 L1 L2 L3 L4 L5 L6 L7 L8 L9 LA LB LC LD LE LF LG LH LI LJ LK LL LM LN LO LP LQ LR LS LT LU LV LW LX LY LZ M0 M1 M2 M3 M4 M5 M6 M7 M8 M9 MA MB MC MD ME MF MG MH MI MJ MK ML MM MN MO MP MQ MR MS MT MU MV MW MX MY MZ N0 N1 N2 N3 N4 N5 N6 N7 N8 NA NB NC ND NE NF NG NH NI NJ NK NL NM NN NO NP NQ NR NS NT NU NV NX NZ O0 O1 O2 O3 OA OB OC OD OE OF OG OH OI OJ OK OL OM ON OP OQ OR OS OT OV OX OY OZ P0 P1 P2 P3 P4 P5 P6 P7 P8 P9 PA PB PC PD PE PF PG PH PI PJ PK PL PM PN PO PP PQ PR PS PT PU PV PW PX PY PZ Q1 Q2 Q3 Q4 Q5 Q6 Q8 Q9 QA QB QC QE QF QG QH QK QL QM QP QR QS QT QV QW QX QY R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 RA RB RC RD RE RF RG RH RI RJ RK RL RM RN RO RP RQ RR RS RT RU RV RW RX RY RZ

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