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SP522 Datasheet(PDF) 2 Page - Sipex Corporation |
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SP522 Datasheet(HTML) 2 Page - Sipex Corporation |
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2 / 22 page  2 Rev. 7/10/03 SP522 Multi–Mode Serial Transceivers © Copyright 2003 Sipex Corporation SPECIFICATIONS Typical @ 25°C and nominal supply voltages unless otherwise noted. MIN. TYP. MAX. UNITS CONDITIONS LOGIC INPUTS V IL 0.8 Volts V IH 2.0 Volts LOGIC OUTPUTS V OL 0.4 Volts I OUT = –3.2mA V OH 2.4 Volts I OUT = 1.0mA RS422 DRIVER TTL Input Levels V IL 0 0.8 Volts V IH 2.0 Volts Outputs Differential Output +2.0 +5.0 Volts R=50Ω; see Figure 1 Open Circuit Voltage,V O +6.0 Volts Balance +0.4 Volts |V T| – |VT| Offset +3.0 Volts Short Circuit Current +150 mA V out = 0V Power Off Current +100 µAV cc = 0V, Vout = +0.25V Transition Time 40 nS Rise/fall time, 10%-90% Max. Transmission Rate 10 Mbps R L=100Ω Propagation Delay T A = +25°C t PHL 90 150 nS R DIFF=100Ω, Figures 3 & 5 t PLH 90 150 nS R DIFF=100Ω, Figures 3 & 5 RS422 RECEIVER TTL Output Levels V OL 0.4 Volts V OH 2.4 Volts Input High Threshold +0.3 +6.0 Volts (a)-(b) Low Threshold -6.0 -0.3 Volts (a)-(b) Common Mode Range -7.0 +7.0 Volts High Input Current Refer to Rec. input graph Low Input Current Refer to Rec. input graph Receiver Sensitivity +0.3 Volts V CM = +7V to -7V Input Impedance 4 kΩ Max. Transmission Rate 10 Mbps Propagation Delay T A = +25°C t PHL 110 175 nS Figures 3 & 7 t PLH 110 175 nS Figures 3 & 7 RS485 DRIVER TTL Input Levels V IL 0.8 Volts V IH 2.0 Volts Outputs Differential Output +1.5 +5.0 Volts R=27Ω; C L=50pF; see Fig. 1 Open Circuit Voltage,V O +6.0 Volts Balance +0.2 Volts |V T| – |VT| Output Current 28.0 mA R L=54Ω Short Circuit Current +200 mA V out = –7V to +7V Transition Time 40 nS Rise/fall time, 10%-90% Max. Transmission Rate 10 Mbps R L=54Ω Propagation Delay Figures 3 & 5; T A = +25°C t PHL 100 150 nS R DIFF=54Ω, CRL = 50pF t PLH 100 150 nS R DIFF=54Ω, CRL = 50pF |
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