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ADM3493 Datasheet(PDF) 7 Page - Analog Devices |
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ADM3493 Datasheet(HTML) 7 Page - Analog Devices |
7 / 12 page ADM3493 Rev. 0 | Page 7 of 12 TEST CIRCUITS RL/2 RL/2 VOC A B VOD Figure 3. Driver VOD and VOC VCM = –7V TO +12V VCC RL 375Ω 375Ω VOD D Figure 4. Driver VOD with Varying Common-Mode Voltage IOH (–) IOL (+) VOH VOL R 0 VID Figure 5. Receiver VOH and VOL D GENERATOR1 VCC 50Ω CL RL = 60Ω CL = 15pF2 OUT 1PPR = 250kHz, 50% DUTY CYCLE, tR ≤ 6.0ns, ZO =50Ω. 2CL INCLUDES PROBE AND STRAY CAPACITANCE. Figure 6. Driver Differential Output Delay and Transition Times D VOM RL =27Ω OUT CL = 15pF2 GENERATOR1 VCC 50Ω S1 VOM = VOH +VOL 2 ≈ 1.5V 1PPR = 250kHz, 50% DUTY CYCLE, tR ≤ 6.0ns, ZO =50Ω. 2CL INCLUDES PROBE AND STRAY CAPACITANCE. Figure 7. Driver Propagation Delays D OUT CL = 50pF2 GENERATOR1 50Ω S1 VOM = VOH +VOL 2 ≈ 1.5V RL = 110Ω 0V OR 3V 1PPR = 250kHz, 50% DUTY CYCLE, tR ≤ 6.0ns, ZO =50Ω. 2CL INCLUDES PROBE AND STRAY CAPACITANCE. Figure 8. Driver Enable and Disable Times (tPZH, tPSH, tPHZ) D OUT CL =50pF2 GENERATOR1 50Ω S1 0V OR 3V VCC RL = 110Ω 1PPR = 250kHz, 50% DUTY CYCLE, tR ≤ 6.0ns, ZO =50Ω. 2CL INCLUDES PROBE AND STRAY CAPACITANCE. Figure 9. Driver Enable and Disable Times (tPZL, tPSL, tPLZ) GENERATOR1 50Ω CL = 15pF2 R 1.5V 0 VOM = VCC 2 OUT VID 1PPR = 250kHz, 50% DUTY CYCLE, tR ≤ 6.0ns, ZO =50Ω. 2CL INCLUDES PROBE AND STRAY CAPACITANCE. Figure 10. Receiver Propagation Delay R GENERATOR1 50Ω CL2 S3 S1 S2 VCC +1.5V –1.5V VID 1kΩ 1PPR = 250kHz, 50% DUTY CYCLE, tR ≤ 6.0ns, ZO =50Ω. 2CL INCLUDES PROBE AND STRAY CAPACITANCE. Figure 11. Receiver Enable and Disable Times |
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