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BU2394KN-E2 Datasheet(PDF) 4 Page - Rohm |
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BU2394KN-E2 Datasheet(HTML) 4 Page - Rohm |
4 / 25 page BU2394KN 4/21 TSZ02201-0E3E0J500700-1-2 © 2015 ROHM Co., Ltd. All rights reserved. www.rohm.com TSZ22111・15・001 04.Nov.2015 Rev.001 Electrical Characteristics (VDD=3.3V, Ta=25°C, unless otherwise specified.) When XTAL_SEL=H crystal frequency is 28.636363 MHz. At XTAL_SEL=L, crystal frequency is 14.318182 MHz Parameter Symbol Limit Unit Conditions Min Typ Max Operating Circuit Current IDD - 45 60 mA At no load 【Output H Voltage】 CLK1 VOH1 VDD-0.5 VDD-0.2 - V When current load = -9.0mA CLK2 VOH2 VDD-0.5 VDD-0.2 - V When current load = -7.0mA REF_CLK VOHR VDD-0.5 VDD-0.2 - V When current load = -4.5mA 【Output L Voltage】 CLK1 VOL1 - 0.2 0.5 V When current load =11mA CLK2 VOL2 - 0.2 0.5 V When current load =9.0mA REF_CLK VOLR - 0.2 0.5 V When current load =5.5mA 【Pull-Up Resistance Value】 FS1, FS2, FS3, CLK2ON, XTAL_SEL Pull-Up R 125 250 375 Ω Monitor pin = 0V (R=VDD/I) 【Output Frequency】 CLK1 FS2:H FS3:H fCLK1-1 - 135.000000 - MHz XTAL x (1188/63)/2 CLK1 FS2:H FS3:L fCLK1-2 - 108.000000 - MHz XTAL x (1056/70)/2 CLK1 FS2:L FS3:L fCLK1-3 - 98.181818 - MHz XTAL x (864/63)/2 CLK1 FS2:L FS3:H fCLK1-4 - 110.000000 - MHz XTAL x (968/63)/2 CLK2 fCLK2-2 - 48.008022 - MHz XTAL x (228/17)/4 REF_CLK FS1:H fREF1-1 - 14.318182 - MHz XTAL Output REF_CLK FS1:L fREF1-2 - 17.734450 - MHz XTAL x (706/57)/10 【Output Waveform】 Duty1 100MHz or Less Duty1 45 50 55 % Measured at a voltage of 1/2 of VDD Duty2 100MHz or More Duty2 - 50 - % Measured at a voltage of 1/2 of VDD Rise Time tR - 2.5 - nsec Period of transition time required for the output to reach 80% from 20% of VDD. Fall Time tF - 2.5 - nsec Period of transition time required for the output to reach 20% from 80% of VDD. 【Jitter】 Period-Jitter 1 σ P-J1 σ - 30 - psec (Note 1) Period-Jitter MIN-MAX P-J MIN-MAX - 180 - psec (Note 2) 【Output Lock-Time】 tLOCK - - 1 msec (Note 3) (Note) The output frequency is determined by the arithmetic (frequency division) expression of a frequency input to XTALIN. If the input frequency is set to values shown below, the output frequency will be as listed above. When XTAL_SEL is set to H, the input frequency on XTALIN will be 28.636363 MHz. When XTAL_SEL is set to L, the input frequency on XTALIN will be 14.318182 MHz. (Note 1) Period- Jitter 1σ This parameter represents standard deviation ( =1σ) on cycle distribution data at the time when the output clock cycles are sampled 1000 times consecutively with the TDS7104 Digital Phosphor Oscilloscope of Tektronix Japan, Ltd. (Note 2) Period-Jitter MIN-MAX This parameter represents a maximum distribution width on cycle distribution data at the time when the output clock cycles are sampled 1000 times consecutively with the TDS7104 Digital Phosphor Oscilloscope of Tektronix Japan, Ltd. (Note 3) Output Lock-Time The Lock-Time represents the elapsed time after power supply turns ON to reach a 3.0V voltage, after the system is switched from Power-Down state to normal operation state, or after the output frequency is switched until it is stabilized at a specified frequency, respectively. |
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