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I2010AG-08ST датащи(PDF) 3 Page - PulseCore Semiconductor |
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I2010AG-08ST датащи(HTML) 3 Page - PulseCore Semiconductor |
3 / 8 page November 2006 P2010A rev 0.2 Low Frequency EMI Reduction IC 3 of 8 Notice: The information in this document is subject to change without notice. Spread Spectrum Selection Table 1 illustrates the possible spread spectrum options. The optimal setting should minimize system EMI to the fullest without affecting system performance. The spreading is described as a percentage deviation of the center frequency (Note: the center frequency is the frequency of the external reference input on XIN/CLK, Pin 1). Example of a typical printer or scanner application that operates on a clock frequency of 16MHz: A spreading selection of FS0=1 and SR0=1 provides a percentage deviation of +/-2.50%* (see Table 1) of Center Frequency. This results in the frequency on ModOUT being swept from 16.40MHz to 15.60MHz at a modulation rate of 33.33KHz (see Table 1). This particular example (see Figure below) given here is a common EMI reduction method for scanner, printer or embedded applications and has already been adopted by most of the leading manufacturers. Note: Spreading range selection varies from different system manufacturers and their designs. P2010A Application Schematic for Flat-Bed Scanner 1 2 3 4 8 7 6 5 VDD SR0 ModOUT SSON VSS FS0 XOUT XIN/CLK P2010A VDD Connected to CLK input pin of the system 16MHz Crystal Input 0.1µF |
Аналогичный номер детали - I2010AG-08ST |
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Аналогичное описание - I2010AG-08ST |
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