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SP481ECP-L Datasheet(PDF) 3 Page - Exar Corporation |
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SP481ECP-L Datasheet(HTML) 3 Page - Exar Corporation |
3 / 12 page 3 Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com SP48E,485E_00_2808 PARAMETERS MIN. TYP. MAX. UNITS CONDITIONS SP481E/SP485E DRIVER (continued) AC Characteristics Driver Enable to Output High 40 70 ns C L = 100pF, see Figures 4 and 6, S 2 closed Driver Enable to Output Low 40 70 ns C L = 100pF, see Figures 4 and 6, S closed Driver Disable Time from High 40 70 ns C L = 100pF, see Figures 4 and 6, S 2 closed Driver Disable Time from Low 40 70 ns C L = 100pF, see Figures 4 and 6, S closed SP481E/SP485E RECEIVER DC Characteristics Differential Input Threshold -0.2 +0.2 Volts -7V ≤ V CM ≤ +12V Differential Input Threshold (SP485EMN ONLY) -0.4 +0.4 Volts -7V ≤ V CM ≤ +12V Input Hysteresis 20 mV V CM = 0V Output Voltage High 3.5 Volts I O = -4mA, VID = +200mV Output Voltage Low 0.4 Volts I O = +4mA, VID = +200mV Three-State ( High Impedance) Output Current +/- µA 0.4V ≤ V O ≤ 2.4V; RE = 5V Input Resistance 2 5 kΩ -7V ≤ V CM ≤ +12V Input Current (A, B); V IN = 2V +.0 mA DE = 0V, V CC = 0V or 5.25V, V IN = 2V Input Current (A, B); V IN = -7V -0.8 mA DE = 0V, V CC = 0V or 5.25V, V IN = -7V Short Circuit Current 7 95 mA 0V ≤ V O ≤ VCC SP481E/SP485E RECEIVER AC Characteristics Max. Transmission Rate 0 Mbps RE = 0V, DE = 0V Receiver Input to Output 20 45 00 ns t PLH ; See Figures 3 & 7, RDIFF = 54Ω, C L = CL2 = 00pF Receiver Input to Output 20 45 00 ns t PHL ; See Figures 3 & 7, RDIFF = 54Ω, C L = CL2 = 00pF Differential Receiver Skew |t PHL - tPLH| 3 ns R DIFF = 54Ω, CL = CL2 = 100pF, see Figures 3 and 7 Receiver Enable to Output Low 45 70 ns C RL = 15pF, Figures 2 & 8; S Closed Receiver Enable to Output High 45 70 ns C RL = 15pF, Figures 2 & 8; S2 Closed Receiver Disable from LOW 45 70 ns C RL = 15pF, Figures 2 & 8; S Closed Receiver Disable from High 45 70 ns C RL = 15pF, Figures 2 & 8; S2 Closed ELECTRICAL CHARACTERISTICS T MIN to TMAX and VCC = +5.0V +/-5% unless otherwise noted. |
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