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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SPC5644AF0MLU2 датащи(PDF) 88 Page - Freescale Semiconductor, Inc |
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SPC5644AF0MLU2 датащи(HTML) 88 Page - Freescale Semiconductor, Inc |
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88 / 138 page  MPC5644A Microcontroller Data Sheet, Rev. 7 Freescale Semiconductor 88 3.10 Oscillator and PLLMRFM electrical characteristics 11 Delay, Z to Normal (High/Low) TDZ CC D — 500 ns 12 Diff Skew Itphla-tplhbI or Itplhb-tphlaI TSKEW CC D — 0.5 ns Termination 13 Trans. Line (differential Zo) CC D — 95 100 105 14 Temperature CC D –40 150 C Table 26. PLLMRFM electrical specifications (VDDPLL = 1.08 V to 3.6 V, VSS = VSSPLL = 0 V, TA = TL to TH) Symbol C Parameter Conditions Value Unit min max fref_crystal fref_ext CC D PLL reference frequency range1 Crystal reference 440 MHz C External reference 480 fpll_in CC P Phase detector input frequency range (after pre-divider) —4 16 MHz fvco CC P VCO frequency range — 256 512 MHz fsys CC C On-chip PLL frequency2 —16 150 MHz fsys CC T System frequency in bypass mode2 Crystal reference 440 MHz P External reference 080 tCYC CC D System clock period — — 1 / fsys ns fLORL fLORH CC D Loss of reference frequency window3 Lower limit 1.6 3.7 MHz D Upper limit 24 56 fSCM CC P Self-clocked mode frequency 4,5 — 1.2 72.25 MHz CJITTER CC T CLKOUT period jitter6,7,8,9 Peak-to-peak (clock edge to clock edge) fSYS maximum –5 5 % fCLKOUT T Long-term jitter (avg. over 2 ms interval) –6 6 ns tcst CC T Crystal start-up time 10, 11 —— 10 ms Table 25. DSPI LVDS pad specification (continued) |
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