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SP503 Datasheet(PDF) 2 Page - Sipex Corporation |
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SP503 Datasheet(HTML) 2 Page - Sipex Corporation |
2 / 29 page Date: 7/29/04 SP503 Multiprotocol Transceiver © Copyright 2004 Sipex Corporation 2 ELECTRICAL CHARACTERISTICS T MIN to TMAX @ Vcc = +5V ±5% 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 RS-485 DRIVER TTL Input Levels V IL 0.8 Volts V IH 2.0 Volts Outputs HIGH Level Output +6.0 Volts LOW level Output –0.3 Volts Differential Output ±1.5 ±5.0 Volts R L=54Ω, CL=50pF Balance ±0.2 Volts |V T| - |VT| Open Circuit Voltage ±6.0 Volts Output Current 28.0 mA R L=54Ω Short Circuit Current ±250 mA Terminated in –7V to +12V Transition Time 120 ns Rise/fall time, 10%–90% Maximum Transmission Rate 5 Mbps R L=54Ω Propagation Delay t PHL 200 ns R L=54Ω t PLH 200 ns R L=54Ω RS-485 RECEIVER TTL Output Levels V OL 0.4 Volts V OH 2.4 Volts Input HIGH Threshold +0.2 +12.0 Volts (a)-(b) LOW Threshold –7.0 –0.2 Volts (a)-(b) Common Mode Range –7.0 +12.0 Volts HIGH Input Current Refer to graph LOW Input Current Refer to graph Receiver Sensitivity ±0.2 Volts Over –7V to +12V common mode range Input Impedance 12 kΩ Maximum Transmission Rate 5 Mbps Propagation Delay t PHL 200 ns t PLH 200 ns V.35 DRIVER TTL Input Levels V IL 0.8 Volts V IH 2.0 Volts Outputs Differential Output ±0.44 ±0.66 Volts With termination network in Figure 6; R L=100Ω Output Impedance 50 150 Ω With termination network in Figure 6. Short Circuit Impedance 135 150 165 Ω With termination network in Figure 6. Transition Time 40 ns Maximum Transmission Rate 5 Mbps R L=100Ω Propagation Delay t PHL 200 ns R L=100Ω t PLH 200 ns R L=100Ω |
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