U3760MB
Low-Voltage Standard Telephone Circuit
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 device.
Observe precautions for handling.
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
D
D
D
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
Tone Ringer
D
DTMF / pulse switchable
D
Pulse dialing 66/33 or 60/40 for 10 ppS and 20 ppS or
DTMF dialing selectable by pins
D
Two-tone ringer
D
Adjustable volume
D
RC oscillator
D
Adjustable threshold
D
Key tone
Benefits
D
Low number of external components
D
High quality through one-IC solution
D
One IC for all standards
Ordering Information
Extended Type Number
U3760MB-MSD
U3760MB-MFN
U3760MB-MFNG3
Package
SDIP40
SSO44
SSO44
Remarks
Taped and reeled
Rev. A3, 19-Feb-98
1 (19)
TEMIC [ TEMIC SEMICONDUCTORS ]
