(China (Mainland))
Product Summary
The U3761MB-T is an universal telephone IC. The U3761MB-T performs all the speech and line interface functions required in an electronic telephone set, a tone ringer, a pulse and DTMF dialing with redial, notice function, and 13 memories. Operation below 15 mA is possible with reduced performance.
Parametrics
U3761MB-T absolute maximum ratings: (1)Line current IL: 140 mA; (2)DC line voltage VL: 14 V; (3)DC voltage at pins 1 to 11 and 33 to 44 VDC: 5.5 V; (4)Junction temperature Tj: 125 ℃; (5)Ambient temperature Tamb: -25 to +75 ℃; (6)Storage temperature Tstg: -55 to +150 ℃; (7)Total power dissipation, Tamb = 60℃, SSO44 Ptot: 0.9 W; (8)Junction ambient, SSO44 RthJA: 70 K/W.
Features
U3761MB-T features: (1)Adjustable DC Characteristic; (2)Symmetrical Input of Microphone Amplifier; (3)Receiving Amplifier for Dynamic or Piezo-electric Earpieces; (4)Automatic Line-loss Compensation.
Diagrams
| Image | Part No | Mfg | Description |  |
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 U3761MB-T |
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Data Sheet |
Negotiable |
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| Image | Part No | Mfg | Description | |
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U3760MB |
Other |
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Data Sheet |
Negotiable |
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U3760MB-N |
Other |
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Data Sheet |
Negotiable |
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U3761MB |
Other |
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Data Sheet |
Negotiable |
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U3761MB-S |
Other |
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Data Sheet |
Negotiable |
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U3761MB-T |
Other |
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Data Sheet |
Negotiable |
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U3761MB-XFNG |
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IC UNVRSL PHONE CIRCUIT 44SSOP |
Data Sheet |
Negotiable |
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