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BU2373FV Datasheet(PDF) 3 Page - Rohm |
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BU2373FV Datasheet(HTML) 3 Page - Rohm |
3 / 19 page Technical Note 3/18 www.rohm.com 2011.08 - Rev.B © 2011 ROHM Co., Ltd. All rights reserved. BU2373FV,BU2374FV ◎ BU2374FV(Ta=25℃, VDD=3.3V, unless otherwise specified.) Parameter Symbol Limits Unit Conditions Min. Typ. Max. (VCO) VCO_IN input impedance Zi - 10 - MΩ Consumption current (while in normal mode) Idd(VCO) - 12.5 - mA With 50 MHz output Consumption current (while in standby mode) Idd_st(VCO) - - 1 µA VCO_INHIBIT=”H”, VCOIN=”L” Control voltage VI 0.5 - VDD-0.5 V Oscillation range frange 37 - 60 MHz Bias resistor range Rbias 2.0 - 3.0 KΩ *1 Frequency sensitivity β 1 - 23 - MHz/V *2 Output duty Duty 45 50 55 % Measured at a voltage of 1/2 of VDD (PFD) Consumption current (while in normal mode) Idd(PFD) - 0.5 - mA When 1 MHz is input to the FIN_A and B Consumption current (while in standby mode) Idd_st(PFD) - - 1 µA PFD_INHIBIT=”H”, FIN_A, B=”L” *1 Design guaranteed figures 37 MHz to 54 MHz when Rbias =2 .0 kΩ 53 MHz to 60 MHz when Rbias = 3.0 kΩ *2 Frequency sensitivity { f1 (VCOIN = 2.0V) f2 (VCOIN = 1.0 V) } / 1.0V *3 If the SELECT pin is set to “H” and the output frequency is reduced to 1/4, the frequency range and the frequency sensitivity will be all reduced to 1/4. |
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