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ICS954101 数据表(PDF) 9 Page - Integrated Circuit Systems |
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ICS954101 数据表(HTML) 9 Page - Integrated Circuit Systems |
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9 / 16 page  9 Integrated Circuit Systems, Inc. ICS954101 0815D—06/21/04 Electrical Characteristics - PCICLK/PCICLK_F TA = 0 - 70°C; VDD = 3.3 V +/-5%; CL = 30 pF (unless otherwise specified) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Notes Long Accuracy ppm see Tperiod min-max values -300 300 ppm1,2 33.33MHz output nominal 29.99100 30.00900 ns 2 33.33MHz output spread 29.99100 30.15980 ns 2 33.33MHz output nominal 29.49100 30.50900 ns 2 33.33MHz output spread 29.49100 30.65980 ns 2 Clk High Time th1 12 N/A ns 1 Clock Low Time tl1 12 N/A ns 1 Output High Voltage VOH IOH = -1 mA 2.4 V Output Low Voltage VOL IOL = 1 mA 0.55 V V OH @MIN = 1.0 V -33 mA VOH@ MAX = 3.135 V -33 mA VOL @ MIN = 1.95 V 30 mA VOL @ MAX = 0.4 V 38 mA Edge Rate Rising edge rate 1 4 V/ns 1 Edge Rate Falling edge rate 1 4 V/ns 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 Duty Cycle dt1 VT = 1.5 V 45 55 % 1 Skew tsk1 VT = 1.5 V 500 ps 1 Jitter tjcyc-cyc VT = 1.5 V 500 ps 1 1Guaranteed by design, not 100% tested in production. 2 All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REFoutput is at 14.31818MHz Clock period Tperiod Output High Current IOH Output Low Current IOL Absolute Min/Max Clock period Tabs Electrical Characteristics - USB_48MHz TA = 0 - 70°C; VDD = 3.3 V +/-5%; CL = 20 pF (unless otherwise specified) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Notes Long Accuracy ppm see Tperiod min-max values -100 100 ppm1,2 Clock period Tperiod 48.0000MHz output nominal 20.82570 20.83400 ns 2 Absolute Min/Max Clock period Tabs Nominal 20.48125 21.18542 ns 2 Clk High Time th1 8.094 10.036 ns 1 Clock Low Time tl1 7.694 9.836 ns 1 V OH @ MIN = 1.0 V -33 mA VOH@ MAX = 3.135 V -33 mA VOL @MIN = 1.95 V 30 mA VOL @ MAX = 0.4 V 38 mA Edge Rate Rising edge rate 1 2 V/ns 1 Edge Rate Falling edge rate 1 2 V/ns 1 Rise Time tr1 VOL = 0.4 V, VOH = 2.4 V 11.43 2 ns 1 Fall Time tf1 VOH = 2.4 V, VOL = 0.4 V 11.33 2 ns 1 Duty Cycle dt1 VT = 1.5 V 45 48 55 % 1 Jitter, Cycle to cycle tjcyc-cyc VT = 1.5 V 350 ps 1 1Guaranteed by design, not 100% tested in production. 2 All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REFoutput is at 14.31818MHz Output Low Current IOL Output High Current IOH |
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