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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MAX3480ACPI датащи(PDF) 3 Page - Maxim Integrated Products |
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MAX3480ACPI датащи(HTML) 3 Page - Maxim Integrated Products |
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3 / 16 page  0.8 VIN = 12V Complete, Isolated, 3.3V RS-485/RS-422 Data Interface _______________________________________________________________________________________ 3 DI ´ = VCC CONDITIONS 1.0 ISO IIN VCM = 0V V 0.4 VOL Receiver Output/Receiver Output Low Voltage mA 70 ∆VTH Input Current (A, B) UNITS MIN TYP MAX SYMBOL PARAMETER ELECTRICAL CHARACTERISTICS (continued) (VCC = VCC1 = VCC2 = VCC4 = VCC5 = 3.0V to 3.6V, FS = 0V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = VCC1 = VCC2 = VCC4 = VCC5 = 3.3V and TA = +25°C.) (Notes 1, 2, 3) Receiver Input Hysteresis VOUT = 3.6V, DI ´ = 0V µA 250 IOH Receiver Output/Receiver Output High Current -7V ≤ VO ≤ 12V (Note 4) mA 100 ISO IOSD Driver Short-Circuit Current DE ´ = 0V, VCC = 0V or 3.6V mV SWITCHING CHARACTERISTICS—MAX3480A (VCC = VCC1 = VCC2 = VCC4 =VCC5 = 3.0V to 3.6V, FS = 0V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = VCC1 = VCC2 = VCC4 = VCC5 = 3.3V and TA = +25°C.) ns PARAMETER SYMBOL MIN TYP MAX UNITS tPLH - tPHL Differential Receiver Skew Driver Input to Output Propagation Delay tPLH 100 275 ns Driver Output Skew (Note 5) tSKEW 25 90 ns Driver Rise or Fall Time tR, tF 15 40 ns Driver Enable to Output High tZH 0.2 1.5 µs Driver Enable to Output Low tZL 0.2 1.5 µs Driver Disable Time from High tHZ 0.3 1.5 µs CONDITIONS Figures 4, 6; RDIFF = 54Ω, CL1 = CL2 = 100pF Figures 5, 7; CL = 100pF, S2 closed Figures 5, 7; CL = 100pF, S1 closed Figures 4, 6; RDIFF = 54Ω, CL1 = CL2 = 100pF Figures 4, 6; RDIFF = 54Ω, CL1 = CL2 = 100pF Figures 5, 7; CL = 15pF, S2 closed Driver Disable Time from Low tLZ 0.3 1.5 µs Figures 5, 7; CL = 15pF, S1 closed tSKD 100 225 Receiver Input to Output Propagation Delay tPLH ns Figures 4, 8; RDIFF = 54Ω, CL1 = CL2 = 100pF 20 Figures 4, 8; RDIFF = 54Ω, CL1 = CL2 = 100pF Maximum Data Rate fMAX 2.5 Mbps tPLH, tPHL < 50% of data period tPHL tPHL 100 275 100 225 -7V ≤ VCM ≤ 12V 0.25 RIN k Ω Receiver Input Resistance -7V ≤ VCM ≤ 12V -0.2 0.2 VTH V Receiver Differential Threshold MAX3480B 48 12 -0.2 -0.8 VIN = 12V VIN = -7V VIN = 12V VIN = -7V MAX3480B MAX3480A MAX3480A |
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