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SY89531LHC Datasheet(PDF) 6 Page - Micrel Semiconductor |
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SY89531LHC Datasheet(HTML) 6 Page - Micrel Semiconductor |
6 / 16 page 6 Precision Edge® SY89531L Micrel, Inc. M9999-110405 hbwhelp@micrel.com or (408) 955-1690 V CC_LOGIC = VCCA = VCCOA/C = +3.3V ±10%, VCCOB = +1.8V ±10% Symbol Parameter Condition Min Typ Max Units fIN Xtal Input Frequency Range Note 8 14 — 18 MHz fOUT Output Frequency Range w/Internal VCO 33.33 — 500 MHz w/External VCO —— 622.08 MHz tVCO Internal VCO Frequency Range 600 — 1000 MHz External VCO Frequency —— 1250 MHz tskew Within Device Skew —— 50 ps Note 9 Within-Bank PECL —— 50 ps Within-Bank HSTL —— 75 ps Between Banks —— 150 ps Part-to-Part Skew Note 10 —— 200 ps tLOCK Maximum PLL Lock Time —— 10 ms tJITTER Cycle-to-Cycle Jitter (Pk-to-Pk) Note 11 — 25 — ps Period Jitter (RMS) Note 12 —— 50 ps tpw (min) Minimum Pulse Width 50 —— ns Target PLL Loop Bandwidth Feedback Divider Ratio: 72 Note 13 — 1.0 — MHz Feedback Divider Ratio: 34 Note 13 — 2.0 — MHz tDC fOUT Duty Cycle 45 50 55 % tr, tf Output Rise/Fall Time (20% to 80%)LVPECL_Out — 250 450 ps HSTL_Out 100 — 450 ps tOUTPUT_RESET Note 14 —— 10 ns tHOLD_FSEL 5 —— ns tSETUP_FSEL 5 —— ns tOUTPUT_SYNC 1 —— VCO clock cycle FSEL-to-Valid Output Transition Time —— 1 µs tSETUP_OUT_SYNC 500 —— ps Note 8. Fundamental mode crystal. Note 9. The within-device skew is defined as the worst case difference between any two similar delay paths within a single device operating at the same voltage and temperature. Note 10. The part-to-part skew is defined as the absolute worst case difference between any two delay paths on any two devices operating at the same voltage and temperature. Note 11. Cycle-to-cycle jitter definition: The variation in period between adjacent cycles over a random sample of adjacent cycle pairs. T JITTER_CC =Tn– T n+1 where T is the time between rising edges of the output signal. Note 12. Period Jitter definition: For a specified amount of time (i.e., 1ms), there are N periods of a signal, and T n is defined as the average period of that signal. Period jitter is defined as the variation in the period of the output signal for corresponding edges relative to T n. Note 13. Using recommended loop filter components. See “Functional Description, External Loop Filter Considerations.” Note 14. See “Timing Diagrams.” AC ELECTRICAL CHARACTERISTICS |
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