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932SQL450 Arkusz danych(PDF) 9 Page - Integrated Device Technology |
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932SQL450 Arkusz danych(HTML) 9 Page - Integrated Device Technology |
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9 / 23 page ![]() REVISION B 03/06/15 9 LOW-POWER CK420BQ DERIVATIVE FOR PCIE COMMON CLOCK ARCHITECTURES 932SQL450 DATASHEET Clock AC Tolerances Clock Periods–Outputs with Spread Spectrum Disabled Clock Periods–Outputs with Spread Spectrum Enabled CPU, SRC NS_SAS, NS_SRC PCI DOT96 48MHz REF 100 100 100 100 100 100 ppm 50 50 500 250 350 1000 ps -0.50% 0.00% -0.50% 0 0.00% 0.00% % PPM tolerance Cycle to Cycle Jitter Spread 1 Clock 1us 0.1s 0.1s 0.1s 1us 1 Clock -c2c jitter AbsPer Min -SSC Short-Term Average Min - ppm Long-Term Average Min 0 ppm Period Nominal + ppm Long-Term Average Max +SSC Short-Term Average Max +c2c jitter AbsPer Max CPU 100.000 9.94900 9.99900 10.00000 10.00100 10.05100 ns 1,2 SRC, NS_SAS, NS_SRC 100.000 9.94900 9.99900 10.00000 10.00100 10.05100 ns 1,2 PCI 33.333 29.49700 29.99700 30.00000 30.00300 30.50300 ns 1,2 DOT96 96.000 10.16563 10.41563 10.41667 10.41771 10.66771 ns 1,2 48MHz 48.000 20.48125 20.83125 20.83333 20.83542 21.18542 ns 1,2 REF 14.318 69.78429 69.83429 69.84128 69.84826 69.89826 ns 1,2 Notes Measurement Window Units SSC OFF Center Freq. MHz 1 Clock 1us 0.1s 0.1s 0.1s 1us 1 Clock -c2c jitter AbsPer Min -SSC Short-Term Average Min - ppm Long-Term Average Min 0 ppm Period Nominal + ppm Long-Term Average Max +SSC Short-Term Average Max +c2c jitter AbsPer Max CPU 99.75 9.94906 9.99906 10.02406 10.02506 10.02607 10.05107 10.10107 ns 1,2 PCI 33.25 29.49718 29.99718 30.07218 30.07519 30.07820 30.15320 30.65320 ns 1,2 SRC 99.75 9.94906 9.99906 10.02406 10.02506 10.02607 10.05107 10.10107 ns 1,2 1Guaranteed by design and characterization, not 100% tested in production. 2 All Long Term Accuracy specifications are guaranteed with the assumption that the REF output is tuned to exactly 14.31818MHz. Measurement Window Units SSC ON Center Freq. MHz Notes |
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