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MPC9449 Datasheet(PDF) 8 Page - Integrated Device Technology |
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MPC9449 Datasheet(HTML) 8 Page - Integrated Device Technology |
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8 / 11 page ![]() MPC9449 REVISION 6 DECEMBER 21, 2012 8 ©2012 Integrated Device Technology, Inc. MPC9449 Data Sheet 3.3V/2.5V 1:15 PECL/LVCMOS CLOCK FANOUT BUFFER Figure 8. Output-to-Output Skew tSK(O) Figure 9. Propagation Delay (tPD) Test Reference Figure 10. Propagation Delay (tPD) Test Reference Figure 11. Propagation Delay tSK(P) Test Reference Figure 12. Output Transition Time Test Reference Figure 13. Cycle-to-Cycle Jitter Figure 14 The pin-to-pin skew is defined as the worst case difference in propagation delay be- tween any similar delay path within a single device VCC VCC÷2 GND VCC VCC÷2 GND tSK(O) VCC VCC÷2 GND t(LH) QX CCLK VCC VPP t(HL) VCC÷2 GND VCC VCC÷2 GND t(LH) QX PCLK VPP t(HL) VCMR PCLK VCC VCC÷2 GND t(LH) QX CCLK VCC t(HL) VCC÷2 GND t(HL) tSK(P)= tPLH–tPLH tF tR VCC=3.3 V VCC=2.5 V 2.4 1.8 V 0.55 0.6 V The variation in cycle time of a signal between adjacent cycles, over a ran- dom sample of adjacent cycle pairs TN TJIT(CC) = |TN -TN+1| TN+1 |
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