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AD9549APCBZ 数据表(PDF) 70 Page - Analog Devices |
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AD9549APCBZ 数据表(HTML) 70 Page - Analog Devices |
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70 / 76 page  AD9549 Rev. D | Page 70 of 76 Register 0x0332—Reference OOL (Continued) Table 118. Bits Bit Name Description [7:0] REFB OOL lower limit See the Reference Frequency Monitor section. Register 0x0333—Reference OOL (Continued) Table 119. Bits Bit Name Description [15:8] REFB OOL lower limit See the Reference Frequency Monitor section. Register 0x0334—Reference OOL (Continued) Table 120. Bits Bit Name Description [23:16] REFB OOL lower limit See the Reference Frequency Monitor section. Register 0x0335—Reference OOL (Continued) Table 121. Bits Bit Name Description [31:24] REFB OOL lower limit See the Reference Frequency Monitor section. CALIBRATION (USER-ACCESSIBLE TRIM) (REGISTER 0x0400 TO REGISTER 0x0410) Register 0x0400—K-Divider Table 122. Bits Bit Name Description [7:0] K-divider The K-divider alters precision of frequency estimator circuit. See the Frequency Estimator section. Register 0x0401—K-Divider (Continued) Table 123. Bits Bit Name Description [15:8] K-divider The K-divider alters precision of frequency estimator circuit. See the Frequency Estimator section. Register 0x0402—CPFD Gain Table 124. Bits Bit Name Description [2:0] CPFD gain scale This register is the coarse phase frequency power-of-2 multiplier (PDS). See the Phase Detector section. Note that the correct value for this register is calculated by filter design software provided with the evaluation board. Register 0x0403—CPFD Gain (Continued) Table 125. Bits Bit Name Description [5:0] CPFD gain This register is the coarse phase frequency linear multiplier (PDG). See the Phase Detector section. Note that the correct value for this register is calculated by filter design software provided with the evaluation board. Register 0x0404—FPFD Gain Table 126. Bits Bit Name Description [7:0] FPFD gain This register is the fine phase frequency detector linear multiplier (alters charge pump current). See the Fine Phase Detector section. Note that the correct value for this register is calculated by filter design software provided with the evaluation board. Register 0x0405—Reserved |
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