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UT3243G-P28-R Datasheet(PDF) 5 Page - Unisonic Technologies |
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UT3243G-P28-R Datasheet(HTML) 5 Page - Unisonic Technologies |
5 / 9 page UT3243 CMOS IC UNISONICTECHNOLOGIESCO.,LTD 5 of 9 www.unisonic.com.tw QW-R502-573.F ELECTRICAL CHARACTERISTICS(Cont.) (VCC = +3.0V~+5.5V, C1~C4=0.1µF (Note 2), TA = TMIN to TMAX, Unless Otherwise Specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Receiver Positive or Negative Threshold to INVALID High tINVH Fig.2 1 µs Low tINVL 30 µs RECEIVER INPUTS Input Voltage Range VRR -25 25 V Input Threshold Low VRINL TA = 25°C VCC=3.3V 0.6 1.2 V VCC=5.0V 0.8 1.5 Input Threshold High VRINH TA = 25°C VCC=3.3V 1.5 2.4 V VCC=5.0V 1.8 2.4 Input Hysteresis VRINHYS 0.3 V Input Resistance VRINRES TA = 25°C 3 5 7 kΩ TRANSMITTER OUTPUTS Output Voltage Swing VTOUTSW All transmitter outputs loaded with 3kΩ to ground ±4.8 ±5.4 V Output Resistance VTOUTRES VCC = V+ = V- = 0V, Transmitter output = ±2V 300 10M Ω Output Short-Circuit Current ITSC ±35 ±60 mA Output Leakage Current ITOUT(LK) VOUT=±12V, Transmitters disabled ±25 µA MOUSE DRIVABILITY Transmitter Output Voltage VTOUT T1IN = T2IN = GND, T3IN = VCC, T3OUT loaded with 3kΩ to GND, T1OUT and T2OUT loaded with 2.5mA each ±4.8 V TIMING CHARACTERISTICS Maximum Data Rate DR RL = 3kΩ, CL = 1000pF, one transmitter switching 120 235 kbps Receiver Propagation Delay tPHL Receiver input to receiver output, CL = 150pF 0.3 µs tPLH 0.3 Receiver Output Time Enable tR(EN) Normal operation 200 ns Disable tR(DIS) 200 ns Transmitter Skew tTS |tPHL – tPLH| 200 1000 ns Receiver Skew tRS |tPHL – tPLH| 100 500 ns Transition-Region Slew Rate SR VCC=3.3V, TA=25°C, RL = 3kΩ ~ 7kΩ, measured from +3V ~ -3V or -3V ~ +3V CL = 200pF~2500pF 4 8.0 30 V/µs CL = 200pF~1000pF 6 30 Notes: 1. Typical values are at TA = 25°C. 2. C1~C4 = 0.1µF, measured at 3.3V ±10%. C1 = 0.047µF, C2~C4 = 0.33µF, measured at 5.0V ±10%. |
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