U3760MB

Features: Speech Circuit· Adjustable dc characteristic· Symmetrical input of microphone amplifier· Receiving amplifier for dynamic or piezo-electric earpieces· Automatic line-loss compensation· Selectable flashing duration by key pad· Pause function· Last number redial up to 32 digits· Standard lo...

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SeekIC No. : 004534818 Detail

U3760MB: Features: Speech Circuit· Adjustable dc characteristic· Symmetrical input of microphone amplifier· Receiving amplifier for dynamic or piezo-electric earpieces· Automatic line-loss compensation· Sele...

floor Price/Ceiling Price

Part Number:
U3760MB
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/4/26

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Product Details

Description



Features:

Speech Circuit
· Adjustable dc characteristic
· Symmetrical input of microphone amplifier
· Receiving amplifier for dynamic or piezo-electric earpieces
· Automatic line-loss compensation
· Selectable flashing duration by key pad
· Pause function
· Last number redial up to 32 digits
· Standard low-cost 3.58-MHz crystal or ceramic resonator

Dialer
· DTMF / pulse switchable
· Pulse dialing 66/33 or 60/40 for 10 ppS and 20 ppS or DTMF dialing selectable by pins
· Key tone

Tone Ringer
· Two-tone ringer
· Adjustable volume
· RC oscillator
· Adjustable threshold




Pinout

  Connection Diagram


Specifications

Parameters
Symbol
Value
Unit
Line current
IL
140
mA
DC line voltage
VL
14
V
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
SSO44
SDIP40
Ptot
0.9
W
1.3
Junction ambient
SSO44
SDIP40
RthJA
70
K/W
50



Description

TEMIC's low-voltage telephone circuit, U3760MB, performs all the speech and line interface functions required in an electronic telephone set tone ringer, pulse and DTMF dialing with redial. Electrostatic sensitive U3760MB. Observe precautions for handling.




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