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ICSXXXXCGLFT Datasheet(PDF) 9 Page - Integrated Circuit Systems |
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ICSXXXXCGLFT Datasheet(HTML) 9 Page - Integrated Circuit Systems |
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9 / 21 page  9 Integrated Circuit Systems, Inc. ICS932S422C 1412A—12/10/07 Electrical Characteristics - USB48MHz PARAMETER SYMBOL CONDITIONS* MIN TYP MAX UNITS NOTES Long Accuracy ppm see Tperiod min-max values -100 100 ppm 1,2 Clock period Tperiod 48.00MHz output nominal 20.8313 20.8354 ns 2 Output Impedance RDSP VO = VDD*(0.5) 12 55 Ω 1 Output High Voltage VOH IOH = -1 mA 2.4 V 1 Output Low Voltage VOL IOL = 1 mA 0.55 V 1 V OH @MIN = 1.0 V -29 mA 1 VOH@MAX = 3.135 V -33 mA 1 VOL @ MIN = 1.95 V 29 mA 1 VOL @ MAX = 0.4 V 27 mA 1 Rise Time tr_USB VOL = 0.4 V, VOH = 2.4 V 12 ns 1 Fall Time tf_USB VOH = 2.4 V, VOL = 0.4 V 12 ns 1 Duty Cycle dt1 VT = 1.5 V 45 55 %1 Group Skew tskew VT = 1.5 V 250 ps 1 Jitter, Cycle to cycle tjcyc-cyc VT = 1.5 V 500 ps 1 *TA = 0 - 70°C; Supply Voltage VDD = 3.3 V +/-5%, CL = 5 pF with Rs = 22 Ω 1Guaranteed by design and characterization, not 100% tested in production. Output High Current IOH Output Low Current IOL Electrical Characteristics - REF-14.318MHz PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Notes Long Accuracy ppm see Tperiod min-max values -300 300 ppm 1,2 Clock period Tperiod 14.318MHz output nominal 69.8270 69.8550 ns 2 Output High Voltage VOH IOH = -1 mA 2.4 V 1 Output Low Voltage VOL IOL = 1 mA 0.4 V 1 V OH @MIN = 1.0 V -33 mA 1 VOH@MAX = 3.135 V -33 mA 1 VOL @ MIN = 1.95 V 30 mA 1 VOL @ MAX = 0.4 V 38 mA 1 Rise Time tr1 VOL = 0.4 V, VOH = 2.4 V 0.5 2 ns 1 Fall Time tf1 VOH = 2.4 V, VOL = 0.4 V 0.5 2 ns 1 Skew tsk1 VT = 1.5 V 500 ps 1 Duty Cycle dt1 VT = 1.5 V 45 55 % 1 Jitter tjcyc-cyc VT = 1.5 V 1000 ps 1 *TA = 0 - 70°C; Supply Voltage VDD = 3.3 V +/-5%, CL = 5 pF with Rs = 22 Ω (Rs is used in USB48MHz test only) 1Guaranteed by design and characterization, not 100% tested in production. 2 All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REF is at 14.31818MHz Output High Current IOH Output Low Current IOL Electrical Characteristics - Differential Jitter Parameters PARAMETER Symbol Conditions Min TYP Max Units Notes t jphasePLL PCIe Gen 1 86 ps (p-p) 1,2 t jphaseLo PCIe Gen 2 10kHz < f < 1.5MHz 3ps (RMS) 1,2 t jphaseHigh PCIe Gen 2 1.5MHz < f < Nyquist (50MHz) 3.1 ps (RMS) 1,2 tjphFBD1_3.2 G FBD1 3.2/4G 11MHz to 33MHz 3ps (RMS) 1,2 tjphFBD1_4.0 G FBD1 4.8G 11MHz to 33MHz 2.5 ps (RMS) 1,2 *TA = 0 - 70°C; Supply Voltage VDD = 3.3 V +/-5% 1Guaranteed by design and characterization, not 100% tested in production. Jitter, Phase 2See http://www.pcisig.com for compelte specs |
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