(China (Mainland))
Product Summary
The U3761MB-TV2.2 is universal telephone IC-all functions integrated. Atmel low-voltage telephone circuit U3761MB-TV2.2 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-TV2.2 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-TV2.2 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; (5)DTMF/Pulse Switchable; (6)Pulse Dialing 66/33 or 60/40 or DTMF Dialing Selectable by Pin; (7)Selectable Flashing Duration by Key Pad; (8)Pause Function; (9)Optical Indication of Temporary DTMF Mode; (10)Keytone for Pulse Dialing; (11)Last Number Redial up to 32 Digits; (12)Three by 17 Digits Direct (One-touch) Memory; (13)Ten by 17 Digits Indirect (Two-touch) Memory; (14)Notice Function up to 32 Digits; (15)Standard Low-cost Crystal 3.58 MHz or Ceramic Resonator; (16)Handset Mute (Privacy) with Optical Indication; (17)Additional Toggle Flipflop; (18)Internal Loop Interrupt Detection.
Diagrams
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 U3760MB |
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U3760MB-N |
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U3761MB |
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Negotiable |
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U3761MB-S |
Other |
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Negotiable |
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U3761MB-T |
Other |
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Negotiable |
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U3761MB-XFNG |
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IC UNVRSL PHONE CIRCUIT 44SSOP |
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Negotiable |
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