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HCPL-643K 数据表(PDF) 9 Page - Agilent(Hewlett-Packard) |
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HCPL-643K 数据表(HTML) 9 Page - Agilent(Hewlett-Packard) |
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9 / 12 page ![]() 1-532 Figure 8. Test Circuit for tPHZ, tPZH, tPLZ, and tPZL. (Single Channel Product Only). Figure 5. Test Circuit for tPLH, tPHL, tr, and tf. GND VCC IF 5.0 V D.U.T. 1.3 K Ω INPUT MONITORING NODE PULSE GEN. tr = tf = 5 ns f = 500 kHz 25 % DUTY CYCLE 30 pF C2 THE PROBE AND JIG CAPACITANCES ARE REPRESENTED BY C1 AND C2. ALL DIODES ARE 1N4150 OR EQUIVALENT. VO OUTPUT MONITORING NODE VCC 2.5 K Ω C1 15 pF 100 Ω 0.1 µF GND VCC IF 5.0 V D.U.T. 1.3 K Ω PULSE GENERATOR ZO = 50 Ω tr = tf = 5 ns C1 30 pF INPUT VE MONITORING NODE VCC D1 D2 2.5 K Ω D3 D4 S2 S1 VO 8 7 6 5 1 2 3 4 0.1 µF Figure 6. Typical Propagation Delay vs. Ambient Temperature. Figure 7. Typical Propagation Delay vs. Input Forward Current. |
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