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ST490ABN Datenblatt(PDF) 7 Page - STMicroelectronics |
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ST490ABN Datenblatt(HTML) 7 Page - STMicroelectronics |
7 / 17 page ST490AB Electrical characteristics 7/17 Table 8. Receiver electrical characteristics (VCC = 4.5 V to 5.5 V, TA = -40 to 85 °C, unless otherwise specified. Typical values are referred to TA = 25 °C) Symbol Parameter Test conditions Min. Typ. Max. Unit IIN1 Logic input current ± 2.0 μA IIN2 Input current (A, B) Other input=0V VCC= 0 or 5.25V VIN=12V 0.5 1 mA VIN=-7V -0.35 -0.8 mA VTH Receiver differential threshold voltage VCM = -7V to 12V -0.2 0.2 V ΔVTH Receiver input hysteresis VCM = 0V 70 mV VOH Receiver output high voltage IOUT = -8mA, VID = 200mV 3.5 4.7 V VOL Receiver output low voltage IOUT = 8mA, VID = -200mV 0.2 0.4 V RRIN Receiver input resistance VCM = -7V to 12V 12 24 k Ω IOSR Receiver short-circuit current VO = 0V to VCC 795 mA Table 9. Driver switching characteristics (VCC = 4.5 V to 5.5 V, TA = -40 to 85 °C, unless otherwise specified. Typical values are referred to TA = 25 °C) Symbol Parameter Test conditions Min. Typ. Max. Unit DR Maximum data rate Jitter <5% 25 50 Mbps tPLH tPHL Propagation delay input to output RL= 54Ω, CL1=CL2=50pF, (Figure 1)10 16 ns tSKEW Differential output delay skew RL= 54Ω, CL1=CL2=50pF, (Figure 1)1 3 ns tTLH tTHL Rise or fall differential time RL= 54Ω, CL1=CL2=50pF, (Figure 1)8 12 ns Table 10. Receiver switching characteristics (VCC = 4.5 V to 5.5 V, TA = -40 to 85 °C, unless otherwise specified. Typical values are referred to TA = 25 °C) Symbol Parameter Test conditions Min. Typ. Max. Unit tPLH tPHL Propagation delay input to output CL = 15pF, (Figure 2, Figure 4)19 30 ns tSKD |tPLH - tPHL| Receiver output skew CL = 15pF, (Figure 2, Figure 4)1 3 ns tTLH tTHL Rise or fall time CL = 15pF, (Figure 2, Figure 4)8 ns |
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