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SL28SRC01 数据表(PDF) 5 Page - Silicon Laboratories |
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SL28SRC01 数据表(HTML) 5 Page - Silicon Laboratories |
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5 / 11 page  SL28SRC01 DOC#: SP-AP-0015 (Rev. 0.2) Page 5 of 11 AC Electrical Specifications Parameter Description Condition Min. Max. Unit Crystal TDC XIN Duty Cycle The device operates reliably with input duty cycles up to 30/70 but the REF clock duty cycle will not be within specification 47.5 52.5 % TPERIOD XIN Period When XIN is driven from an external clock source 69.841 71.0 ns TR/TF XIN Rise and Fall Times Measured between 0.3VDD and 0.7VDD –10.0 ns TCCJ XIN Cycle to Cycle Jitter As an average over 1- s duration – 500 ps LACC Long-term Accuracy Measured at VDD/2 differential – 250 ppm Clock Input TDC CLKIN Duty Cycle Measured at VDD/2 47 53 % TR/TF CLKIN Rise and Fall Times Measured between 0.2VDD and 0.8VDD 0.5 4.0 V/ns TCCJ CLKIN Cycle to Cycle Jitter Measured at VDD/2 – 250 ps TLTJ CLKIN Long Term Jitter Measured at VDD/2 – 350 ps VIL Input Low Voltage XIN / CLKIN pin – 0.8 V VIH Input High Voltage XIN / CLKIN pin 2 VDD+0.3 V IIL Input LowCurrent XIN / CLKIN pin, 0 < VIN <0.8 – 20 uA IIH Input HighCurrent XIN / CLKIN pin, VIN = VDD – 35 uA SRC TDC SRC Duty Cycle Measured at 0V differential 45 55 % TPERIOD 100 MHz SRC Period Measured at 0V differential at 0.1s 9.99900 10.0010 ns TPERIODSS 100 MHz SRC Period, SSC Measured at 0V differential at 0.1s 10.02406 10.02607 ns TPERIODAbs 100 MHz SRC Absolute Period Measured at 0V differential at 1 clock 9.87400 10.1260 ns TPERIODSSAbs 100 MHz SRC Absolute Period, SSC Measured at 0V differential at 1 clock 9.87406 10.1762 ns TCCJ SRC Cycle to Cycle Jitter Measured at 0V differential – 50 ps RMSGEN1 Output PCIe* Gen1 REFCLK phase jitter BER = 1E-12 (including PLL BW 8 - 16 MHz, ζ = 0.54, Td=10 ns, Ftrk=1.5 MHz) 0108 ps RMSGEN2 Output PCIe* Gen2 REFCLK phase jitter Includes PLL BW 8 - 16 MHz, Jitter Peaking = 3dB, ζ = 0.54, Td=10 ns), Low Band, F < 1.5MHz 03.0 ps RMSGEN2 Output PCIe* Gen2 REFCLK phase jitter Includes PLL BW 8 - 16 MHz, Jitter Peaking = 3dB, ζ = 0.54, Td=10 ns), Low Band, F < 1.5MHz 03.1 ps RMSGEN3 Output phase jitter impact – PCIe* Gen3 Includes PLL BW 2 - 4 MHz, CDR = 10MHz) 01.0 ps LACC SRC Long Term Accuracy Measured at 0V differential – 100 ppm TR / TF SRC Rising/Falling Slew Rate Measured differentially from ±150 mV 2.5 8 V/ns TRFM Rise/Fall Matching Measured single-endedly from ±75 mV – 20 % VHIGH Voltage High 1.15 V VLOW Voltage Low –0.3 – V VOX Crossing Point Voltage at 0.7V Swing 300 550 mV |
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