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What is U3761MB?

This electronic component, produced by the manufacturer "TEMIC Semiconductors", performs the same function as "Low Voltage Standard Telephone Circuit with 13 Memories".


U3761MB Datasheet PDF - TEMIC Semiconductors

Part Number U3761MB
Description Low Voltage Standard Telephone Circuit with 13 Memories
Manufacturers TEMIC Semiconductors 
Logo TEMIC Semiconductors Logo 


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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
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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U3761MB equivalent
U3761MB
SDIP40 SSO44 Symbol
10 13 MIC 1
11 14 MIC 2
Configuration
MIC1
MIC2
1V
50K
50K
1V
MIC1
MIC2
1V
50K
50K
1V
ÊVI
PD
ÊÊÊVI
PD
ÊÊVI
PD
ÊÊVI
Function
Inverting input of microphone
amplifier
Non-inverting input of microphone
amplifier
12 15 MICO
MICO
PD
ÊVI
Ê1V
Ê ÊÊ16K
Transmit pre-amp output which is
normally capacitively coupled to
Pin TIN
13 16
PD
VL
VL
16V
PD
RDC
Positive supply voltage input to the
device. The current through this
pin is modulated by the transmit
signal.
PD
TELEFUNKEN Semiconductors
Rev. A2, 23-Apr-97
Preliminary Information
5 (23)


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for U3761MB electronic component.


Information Total 23 Pages
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Featured Datasheets

Part NumberDescriptionMFRS
U3761MBThe function is Low Voltage Standard Telephone Circuit with 13 Memories. TEMIC SemiconductorsTEMIC Semiconductors
U3761MB-AFNThe function is Low Voltage Standard Telephone Circuit with 13 Memories. TEMIC SemiconductorsTEMIC Semiconductors
U3761MB-AFNG3The function is Low Voltage Standard Telephone Circuit with 13 Memories. TEMIC SemiconductorsTEMIC Semiconductors

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