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MPC9447 датащи(PDF) 7 Page - Integrated Device Technology |
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MPC9447 датащи(HTML) 7 Page - Integrated Device Technology |
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7 / 9 page ![]() MPC9447 TIMING SOLUTIONS 7 MOTOROLA Figure 8. Propagation Delay (tPD) Test Reference Figure 9. Output--to--Output Skew tSK(LH, HL) The pin--to--pin skew is defined as the worst case difference in propagation delay between any similar delay path within a single device The time from the output controlled edge to the non--controlled edge, divided by the time between output controlled edges, expressed as a percentage VCC VCC÷2 GND VCC VCC÷2 GND VCC VCC÷2 GND tP T0 DC=(tP T0 x 100%) VCC VCC÷2 GND VCC VCC÷2 GND tP(LH) CCLK QX tF tR VCC=3.3V VCC=2.5V 2.4 1.8V 0.55 0.6V Figure 10. Output Pulse Skew (tSK(P)) Test Reference Figure 11. Output Duty Cycle (DC) Figure 12. Output Transition Time Test Reference The variation in cycle time of a signal between adjacent cycles, over a random sample of adjacent cycle pairs TN TJIT(CC) = |TN --TN+1| TN+1 Figure 13. Cycle--to--Cycle Jitter Figure 14. Setup and Hold Time (tS,tH) Test Reference VCC VCC÷2 GND VCC VCC÷2 GND CCLK QX tSK(LH) tSK(HL) tP(HL) tSK(P) =|tPLH -- tPHL | tP(LH) tP(HL) VCC VCC÷2 GND VCC VCC÷2 GND tS CCLK PCLK CLK_STOP tH Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com MPC9447 3.3V/2.5V 1:9 LVCMOS Clock Fanout Buffer NETCOM IDT™ 3.3V/2.5V 1:9 LVCMOS Clock Fanout Buffer Freescale Timing Solutions Organization has been acquired by Integrated Device Technology, Inc MPC9447 7 |
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