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CD74HC4066PWE4 Datasheet(PDF) 7 Page - Texas Instruments |
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CD74HC4066PWE4 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 16 page 7 Analog Test Circuits FIGURE 4. CROSSTALK BETWEEN TWO SWITCHES TEST CIRCUIT FIGURE 5. FREQUENCY RESPONSE TEST CIRCUIT FIGURE 6. TOTAL HARMONIC DISTORTION TEST CIRCUIT FIGURE 7. CONTROL-TO-SWITCH FEEDTHROUGH NOISE TEST CIRCUIT FIGURE 8. SWITCH OFF SIGNAL FEEDTHROUGH VCC VIS 0.1 µF RC VCC/2 VOS1 SWITCH ON VCC VCC/2 R RC VCC/2 VOS2 SWITCH OFF dB METER VIS fIS = 1MHz SINEWAVE R = 50 Ω C = 10pF R VCC VIS 0.1 µF 50 Ω 10pF VCC/2 VOS SWITCH ON dB METER VCC VIS 10 µF 10k Ω 50pF VCC/2 VOS SWITCH ON DISTORTION METER VI = VIH fIS = 1kHz TO 10kHz VIS SINE WAVE SWITCH ALTERNATING ON AND OFF tr, tf ≤ 6ns fCONT = 1MHz 50% DUTY CYCLE SCOPE VP-P VOS E VOS 50pF 600 Ω VCC/2 600 Ω VCC/2 VCC VCC VIS 0.1 µF RC VCC/2 VOS SWITCH OFF dB METER R VCC/2 VC = VIL fIS ≥ 1MHz SINEWAVE R = 50 Ω C = 10pF Test Circuits and Waveforms FIGURE 9. HC TRANSITION TIMES AND PROPAGATION DELAY TIMES, COMBINATION LOGIC FIGURE 10. HCT TRANSITION TIMES AND PROPAGATION DELAY TIMES, COMBINATION LOGIC tPHL tPLH tTHL tTLH 90% 50% 10% 50% 10% INVERTING OUTPUT INPUT GND VCC tr = 6ns tf = 6ns 90% tPHL tPLH tTHL tTLH 2.7V 1.3V 0.3V 1.3V 10% INVERTING OUTPUT INPUT GND 3V tr = 6ns tf = 6ns 90% CD54HC4066, CD74HC4066, CD74HCT4066 |
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