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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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932SQ426 데이터시트(PDF) 10 Page - Integrated Device Technology |
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932SQ426 데이터시트(HTML) 10 Page - Integrated Device Technology |
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10 / 25 page  932SQ426 CK420BQ DERIVATIVE SUPPORTING SRNS PCIE CLOCKINGS IDT® CK420BQ DERIVATIVE SUPPORTING SRNS PCIE CLOCKINGS 10 932SQ426 REV B 070815 DC Electrical Characteristics - Differential Current Mode Outputs TA = TCOM; Supply Voltage VDD = 3.3 V +/-5% PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS NOTES Slew rate dV/dt Scope averaging on 1 2.3 4 V/ns 1, 2, 3 Slew rate matching ∆dV/dt Slew rate matching, Scope averaging on 9.9 20 % 1, 2, 4 Rise/Fall Time Matching ∆Trf Rise/fall matching, Scope averaging off 17 125 ps 1, 8, 9 Voltage High VHigh 660 716 850 1 Voltage Low VLow -150 20 150 1 Max Voltage Vmax 757 1150 1, 7 Min Voltage Vmin -300 -9 1, 7 Vswing Vswing Scope averaging off 300 1393 mV 1, 2 Crossing Voltage (abs) Vcross_abs Scope averaging off 250 338 550 mV 1, 5 Crossing Voltage (var) ∆-Vcross Scope averaging off 32 140 mV 1, 6 2 Measured from differential waveform 7 Includes overshoot and undershoot. 8 Measured from single-ended waveform 9 Measured with scope averaging off, using statistics function. Variation is difference between min and max. Measurement on single ended signal using absolute value. mV Statistical measurement on single-ended signal using oscilloscope math function. (Scope averaging on) mV 6 The total variation of all Vcross measurements in any particular system. Note that this is a subset of V_cross_min/max (V_cross absolute) allowed. The intent is to limit Vcross induced modulation by setting V_cross_delta to be smaller than 1Guaranteed by design and characterization, not 100% tested in production. IREF = VDD/(3xR R). For RR =412Ω (1%), IREF = 2.67mA. IOH = 6 x IREF and VOH = 0.7V @ ZO= 85Ω differential impedance. 3 Slew rate is measured through the Vswing voltage range centered around differential 0V. This results in a +/-150mV window around differential 0V. 4 Matching applies to rising edge rate for Clock and falling edge rate for Clock#. It is measured using a +/-75mV window centered on the average cross point where Clock rising meets Clock# falling. The median cross point is used to calculate the voltage thresholds the oscilloscope is to use for the edge rate calculations. 5 Vcross is defined as voltage where Clock = Clock# measured on a component test board and only applies to the differential rising edge (i.e. Clock rising and Clock# falling). |
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