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UM3487E Datasheet(PDF) 9 Page - Union Semiconductor, Inc. |
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UM3487E Datasheet(HTML) 9 Page - Union Semiconductor, Inc. |
9 / 14 page ________________________________________________________________________ http://www.union-ic.com Rev.02 Jan.2014 9/14 UM3487E Figure 6. Receiver Propagation Delay Test Circuit DI 3V L1 0V L2 VO 1.5V 1.5V tDPLH tDPHL 1/2VO 1/2VO -VO VO 0V VDIFF 90% 90% 10% 10% tDF tDR VDIFF =VL1 - VL2 tSKEW=|tDPLH-tDPHL| Output Normally Low Output Normally High DE 3V L1 0V L2 1.5V 1.5V VOL VOH VOL VOH 1.4V 1.4V tDLZ tDZL(SHDN), tDZL tDHZ tDZH(SHDN), tDZH VOL+0.5V VOH-0.5V Figure 7. Driver Propagation Delays Figure 8. Driver Enable and Disable Times VOH VOL RO 1V -1V L1 L2 1.5V 1.5V OUTPUT INPUT tRPLH tRPHL Output Normally Low Output Normally High RE 3V 0V RO 1.5V VOH VOL 1.5V 1.5V tRLZ tRZL(SHDN), tRZL tRHZ tRZH(SHDN), tRZH VOL+0.5V VOH-0.5V 1.5V Figure 9. Receiver Propagation Delays Figure 10. Receiver Enable and Disable Times ATE VD R B A Receiver Output |
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