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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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STV0672 Fiches technique(PDF) 86 Page - STMicroelectronics |
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STV0672 Fiches technique(HTML) 86 Page - STMicroelectronics |
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86 / 105 page  VV5410 & VV6410 Clock Signal cd5410-6410f-3-0.fm Commercial in confidence 86/105 10. Clock Signal VV5410/VV6410 system clock is supplied from an external clock source directly driving the CLKI pin. The clock pad has an integral Schmitt buffer to filter noise from the clock source. Please note that there is no support for an external resonator circuit. The clock signal must be a square wave with, ideally a 50% ( 10%) mark:space ratio, although a non-ideal mark:space ratio can be tolerated, please contact STMicroelectronics for details. The maximum input clock frequency for the module is 24.0 MHz. If the 24MHz crystal is preferred then the user must select the pre-clock divide by 1.5 option such that the bulk of the internal logic is driven by a 16MHz clock, see serial interface, register 1610, data_format. VV5410/VV6410 CLK Figure 46 : CMOS Clock Source CLKI Clock Source CLOCK DIVISION |
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