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74CB3Q3125DBQRE4 데이터시트(PDF) 7 Page - Texas Instruments |
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74CB3Q3125DBQRE4 데이터시트(HTML) 7 Page - Texas Instruments |
7 / 26 page VOH VOL CL (see Note A) TEST CIRCUIT S1 2 × VCC Open GND R R L L tPLH tPHL Output Waveform 1 S1 at 2 × VCC (see Note B) Output Waveform 2 S1 at GND (see Note B) tPZL tPZH tPLZ tPHZ VCC 0 V VOH VOL 0 V VOL + V∆ VOH − V∆ 0 V Output Control (VIN) VCC VCC VOLTAGE WAVEFORMS PROPAGATION DELA Y TIMES (tpd(s) ) VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES Output 50 Ω VG1 VCC DUT 50 Ω VIN 50 Ω VG2 50 Ω VI TEST RL S1 V∆ CL 2.5 V ± 0.2 V 3.3 V ± 0.3 V VCC VI tPHZ/tPZH tPLZ/tPZL tpd(s) 2.5 V ± 0.2 V 3.3 V ± 0.3 V 2.5 V ± 0.2 V 3.3 V ± 0.3 V Open Open 2 × VCC 2 × VCC GND GND 500 Ω 500 Ω 500 Ω 500 Ω 500 Ω 500 Ω VCC or GND VCC or GND GND GND VCC VCC 30 pF 50 pF 30 pF 50 pF 30 pF 50 pF 0.15 V 0.3 V 0.15 V 0.3 V Output Control (VIN) Input Generator Input Generator VCC/2 VCC/2 VCC/2 VCC/2 VCC/2 VCC/2 VCC/2 VCC/2 VO SN74CB3Q3125 www.ti.com SCDS143C – OCTOBER 2003 – REVISED JUNE 2015 7 Parameter Measurement Information A. CL includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control. C. All input pulses are supplied by generators having the following characteristics: PRR ≤10 MHz, ZO = 50 Ω, tr ≤2.5 ns, tf ≤2.5 ns. D. The outputs are measured one at a time, with one transition per measurement. E. tPLZ and tPHZ are the same as tdis. F. tPZL and tPZH are the same as ten. G. tPLH and tPHL are the same as tpd(s). The tpd propagation delay is the calculated RC time constant of the typical ON- state resistance of the switch and the specified load capacitance, when driven by an ideal voltage source (zero output impedance). H. All parameters and waveforms are not applicable to all devices. Figure 3. Test Circuit and Voltage Waveforms Copyright © 2003–2015, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Links: SN74CB3Q3125 |
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