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数据搜索系统，热门电子元器件搜索 |
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STW81101ATR 数据表(PDF) 28 Page - STMicroelectronics |
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STW81101ATR 数据表(HTML) 28 Page - STMicroelectronics |
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28 / 42 page  I2C bus interface STW81101 28/42 Pump, Prescaler Modulus) and all the bits of the "CALIBRATION" Register (05H) set to '0' b) Program the "CALIBRATION" Register using a single-byte write sequence (sub- address 05H) with the SERCAL bit set to '1' The maximum allowed PFD frequency (fPFD) to perform the calibration process is 1 MHz; if the desired fPFD is higher than 1MHz the following steps are needed: – Perform all the steps of the calibration procedure programming the desired VCO frequency with a proper setting of R, B and A counter so that fPFD is ≤ 1MHz. – Program the device with the proper setting for the desired VCO and PFD frequencies according to the above step a) only. |
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