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XRT8000 Datasheet(PDF) 5 Page - Exar Corporation |
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XRT8000 Datasheet(HTML) 5 Page - Exar Corporation |
5 / 24 page XRT8000 5 Rev. 1.11 DC ELECTRICAL CHARACTERISTICS (Except Serial Interface) Operating Temperature: -40_C to 85_C Test Conditions: TA = 25_C, VCC = 3.3V ± 5% Unless Otherwise Specified Symbol Parameter Min Typ Max Unit Conditions VIL Input low level 0.8 V VIH Input high level 2.0 V VOL Output low level (CLK1,CLK2) 0.4 V IOL = -3 mA VOH Output high level (CLK1,CLK2) 2.4 V IOH = 3 mA VOL Output low level (LOCKDET,SYNC) 0.4 V IOL = -2.5 mA VOH Output high level (LOCKDET,SYNC) 2.4 V IOH = 2.5 mA IIL Input low current (CSB,MSB) -150 mA IIH Input high current (CSB,MSB) 10 mA VIN = VCC IIL Input low current (except CSB,MSB) -10 mA IIH Input high current (except CSB,MSB) 10 mA VIN = VCC ICC Operating current 11 30 mA No load. Clock = 2.1 MHz RIN Input pull-up resistance (CSB,MSB) 50 100 150 KW AC ELECTRICAL CHARACTERISTICS (See Figure 3) Symbol Parameter Spec.3 Min Typ Max Unit Conditions T1 Input frequency 0.008 32.7 MHz T2 Minimum input signal high to low duration 12 ns T3 Output frequency 1.2 2.1 KHz T61 Duty cycle CLK1, CLK2 47.5 50 52.5 % VCC/2 switch point. 30pF load. T74 Jitter added 8KHz-40KHz 0.025 0.01 0.02 UI Output =1.544MHz T74 Jitter added 10Hz-40KHz 0.025 0.030 UI Output =1.544MHz T74 Broad Band 0.05 0.035 0.05 UI Output =1.544MHz T74 Jitter added 20Hz-100KHz 1.5 0.045 0.07 UI Output =2.048MHz T74 Jitter added 18kHz-100KHz 0.2 0.010 0.03 UI Output =2.048MHz T8 Capture time 40 ms T9 Clock output rise time 14 ns 30pF load. Measured at 20/80 % T10 Clock output fall time 14 ns 30pF load. Measured at 20/80 % T112 Duty cycle SYNC 40 60 % VCC/2 switch point (in master forward mode). 30pF load. T14 Delay time between SYNC and CLK1 or CLK2 T-20 T T+20 ns See table 12 for values of T Notes: 1 T6 = ( ) T T T 4 4 5 + 2 T11 = ( ) T T T 12 12 13 + 3 Specifications from AT&T Publication 62411 and ITUT Rcommendations G-823 (for 1.544MHz and 2.048MHz, respectively) 4 T7 is guaranteed by characterization, not tested. Specifications are subject to change without notice. |
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Similar Description - XRT8000 |
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