U3761MBAFN, U3761MBNFN, U3761MB-S Selling Leads, Datasheet
MFG:tfk Package Cooled:tfk D/C:dc98
U3761MBAFN, U3761MBNFN, U3761MB-S Datasheet download
Part Number: U3761MBAFN
MFG: tfk
Package Cooled: tfk
D/C: dc98
U3761MBAFN, U3761MBNFN, U3761MB-S
- Table of contents:
Info of U3761MBAFN
Info of U3761MBNFN
Info of U3761MB-S
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About U3741BM
PDF/DataSheet Download
Datasheet: U3741BM
File Size: 494913 KB
Manufacturer: ATMEL [ATMEL Corporation]
Download : Click here to Download
About U3741BM
PDF/DataSheet Download
Datasheet: U3741BM
File Size: 494913 KB
Manufacturer: ATMEL [ATMEL Corporation]
Download : Click here to Download
About U3761MB-S
PDF/DataSheet Download
Datasheet: U3761MB-S
File Size: 389149 KB
Manufacturer: Atmel
Download : Click here to Download
U3761MB-S General Description
TEMIC Semiconductors' 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. Operation below 15 mA is possible with reduced performance.
Electrostatic sensitive device. Observe precautions for handling.
Electrostatic sensitive device. Observe precautions for handling.
U3761MB-S Maximum Ratings
| Parameters | Symbol | Value | Unit |
| Line current | IL | 140 | mA |
| DC line voltage | VL | 14 | V |
| DC voltage at Pins 1 to 11 and 33 to 44 | VDC | 5.5 | 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 | Ptot | 0.9 | W |
| Junction ambient SSO44 | RthJA | 70 | k/W |
U3761MB-S Features
Speech Circuit
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 dialing 66/33 or 60/40 or DTMF dialing selectable by pin
Selectable flashing duration by key pad
Pause function
Optical indication of temporary DTMF mode
Keytone for pulse dialing
Last number redial up to 32 digits
Three by 17 digits direct (one-touch) memory
Ten by 17 digits indirect (two-touch) memory
Notice function up to 32 digits
Standard low-cost crystal 3.58 MHz or ceramic resonator
Handset Mute (Privacy) with optical indication
Additional toggle flipflop
Internal loop interrupt detection
Tone Ringer
2-tone ringer
Adjustable volume
RC oscillator
Adjustable threshold
Benefits
Low number of external components
High quality through one IC solution
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 dialing 66/33 or 60/40 or DTMF dialing selectable by pin
Selectable flashing duration by key pad
Pause function
Optical indication of temporary DTMF mode
Keytone for pulse dialing
Last number redial up to 32 digits
Three by 17 digits direct (one-touch) memory
Ten by 17 digits indirect (two-touch) memory
Notice function up to 32 digits
Standard low-cost crystal 3.58 MHz or ceramic resonator
Handset Mute (Privacy) with optical indication
Additional toggle flipflop
Internal loop interrupt detection
Tone Ringer
2-tone ringer
Adjustable volume
RC oscillator
Adjustable threshold
Benefits
Low number of external components
High quality through one IC solution
U3761MB-S Connection Diagram
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