MAX4670 Maxim, MAX4670 Datasheet
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MAX4670
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MAX4670 Summary of contents
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... The MAX4670 replaces two diode arrays or two tran- sient voltage suppressors (TVSs) and four dual-SPDT relays, significantly reducing board space and simplify- ing PC board routing. The MAX4670 pinout is targeted for T1/E1/J1 applications, resulting in a simplified layout when interfacing with standard line transformers and line interface units (LIUs). The MAX4670 has four 1.0Ω ...
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... Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...
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Integrated T1/E1/J1 Short-Haul and ELECTRICAL CHARACTERISTICS (continued) (V+ = +2.7V to +3.6V MIN MAX PARAMETER SYM NO_ or NC_ Off-Leakage I NO(OFF), Current I NC(OFF) COM_ On-Leakage Current I COM(ON) DYNAMIC ...
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... Note 3: Devices are 100% tested at hot and room and guaranteed by design at cold. Note 4: ∆ ON(MAX) ON(MIN) Note 5: Guaranteed by design. Note 6: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal ranges. Note 7: Off-isolation = 20log [ COM_ Note 8: Crosstalk between any two switches. (V+ = 3.0V +25° ...
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Integrated T1/E1/J1 Short-Haul and (V+ = 3.0V +25°C, unless otherwise noted.) A ON-RESISTANCE vs. COM_ VOLTAGE OVER TEMPERATURE (Rx INTERFACE +85° 0.3 0.6 0.9 1.2 ...
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Integrated T1/E1/J1 Short-Haul and Long-Haul Protection Switch (V+ = 3.0V +25°C, unless otherwise noted.) A TURN-OFF TIME vs. SUPPLY VOLTAGE (Tx INTERFACE 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 ...
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Integrated T1/E1/J1 Short-Haul and PIN NAME — N.C. No Connection. Not internally connected. Transmitter 1 Logic Control. Drive INB high to connect NC3 and NC4. INB logic is ignored 1 INB when SWITCH asserts low. Common Terminal 3. Transmitter 1 ...
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... The transformer was a Halo TG83-1505NX trans- former and the surge suppressor was a Teccor P0640SC. Applications Information Figures 7 through 10 illustrate the MAX4670 used in two different redundancy architectures. There is one back- SWITCH ) up card for line cards in the system (in this example ...
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... Integrated T1/E1/J1 Short-Haul and MAX4670 NO1 NC1 NO2 NC2 0.6Ω NO3 0.6Ω NC3 0.6Ω NO4 0.6Ω NC4 0.6Ω NO5 0.6Ω NC5 0.6Ω NO6 0.6Ω NC6 NO7 NC7 NO8 NC8 Figure 1. Functional Diagram In a switching-card architecture, a common switching card contains all the protection switches for the T1/E1/J1 lines entering the system (see Figures 7 and 8) ...
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... LIUs with internal line termination, provided the external 120Ω parallel resistor combination (Rr) is NO1/NO2 connected, as shown in Figures 7 and 9. ON While in normal operation, the MAX4670 requires the ON input and output signals to be within the V+ and GND OFF supply rails. NO3/NO4 ON ESD performance depends on a variety of conditions ...
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... NC_ Figure 2. Switching Time MAX4670 NC_ V NO_ OR NO_ V NC_ IN_ LOGIC GND INPUT C INCLUDES FIXTURE AND STRAY CAPACITANCE. L Figure 3. Break-Before-Make Intervals MAX4670 R GEN NC_ OR NO_ V GEN GND Figure 4. Charge Injection ______________________________________________________________________________________ Long-Haul Protection Switch Test Circuits/Timing Diagrams V+ 0.1µF LOGIC V+ INPUT V OUT ...
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... CAPACITANCE METER f = 1MHz Figure 6. Channel Off-/On-Capacitance 12 ______________________________________________________________________________________ Test Circuits/Timing Diagrams (continued) NETWORK ANALYZER 50Ω 50Ω NO_ V MEAS OUT 50Ω V+ 0.1µF V+ COM_ MAX4670 V IN_ OR V INH NC_ OR NO_ GND V OUT OFF-ISOLATION = 20log OUT ON-LOSS = 20log OUT CROSSTALK = 20log ...
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Integrated T1/E1/J1 Short-Haul and RECEIVE PATH LINE CARD 1 RTIP LIU R X RRING LINE CARD 2 RTIP LIU R X RRING LINE CARD 3 RTIP LIU R X RRING BACKUP LINE CARD RTIP LIU R X RRING Figure 7. ...
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Integrated T1/E1/J1 Short-Haul and Long-Haul Protection Switch TRANSMIT PATH LINE CARD 1 TRING LIU T X LINE CARD 2 TRING LIU T X LINE CARD 3 TRING LIU T X BACKUP LINE CARD LIU T X TRING Figure 8. Switching-Card-Architecture ...
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... Long-Haul Protection Switch LINE CARD 1 MAX4670 COM1 COM2 RTIP Rr LIU RRING LINE CARD 2 MAX4670 COM1 COM2 RTIP Rr LIU RRING LINE CARD 3 MAX4670 COM1 COM2 RTIP Rr LIU RRING BACKUP LINE CARD RTIP LIU R X RRING PROTECTION BUS NO1 NO2 1:1 NO1 NO2 1:1 ...
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... LINE CARD 1 MAX4670 COM3 COM4 R T TTIP LIU TRING LINE CARD 2 MAX4670 COM3 COM4 R T TTIP LIU TRING LINE CARD 3 MAX4670 COM3 COM4 R T TTIP LIU TRING BACKUP LINE CARD R T RTIP LIU RRING PROTECTION BUS NO3 NO4 1:2 ...
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Integrated T1/E1/J1 Short-Haul and 1MΩ 1500Ω DISCHARGE CHARGE-CURRENT- RESISTANCE LIMIT RESISTOR HIGH STORAGE VOLTAGE 100pF CAPACITOR DC SOURCE Figure 11. Human Body ESD Test Model I 100 90% AMPERES 36.8% 10% ...
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... Integrated T1/E1/J1 Short-Haul and Long-Haul Protection Switch MAX4670 NO1 NC1 NO2 NC2 0.6Ω NO3 0.6Ω NC3 0.6Ω NO4 0.6Ω NC4 0.6Ω NO5 0.6Ω NC5 0.6Ω NO6 0.6Ω NC6 NO7 NC7 NO8 NC8 18 ______________________________________________________________________________________ Functional Diagram/Truth Table COM1 R X COM2 INA T X COM3 ...
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... Integrated T1/E1/J1 Short-Haul and (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) ______________________________________________________________________________________ Long-Haul Protection Switch Package Information (continued) 19 ...
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... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. ...