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AD9547/PCBZ 数据表(PDF) 80 Page - Analog Devices |
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AD9547/PCBZ 数据表(HTML) 80 Page - Analog Devices |
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80 / 104 page  AD9547 Rev. 0 | Page 80 of 104 Table 86. Fractional Feedback Divider—Profile 0 Address Bit Bit Name Description 0x0626 [7:0] V V, Bits[7:0]. 0x0627 [7:4] U U, Bits[3:0]. [3:2] Unused Unused. [1:0] V V, Bits[9:8]. 0x0628 [7:6] Unused Unused. [5:0] U U, Bits[9:4]. Table 87. Lock Detectors—Profile 0 Address Bit Bit Name Description 0x0629 [7:0] Phase lock threshold (expressed in units of ps) Phase lock threshold, Bits[7:0]. 0x062A [7:0] Phase lock threshold, Bits[15:8]. 0x062B [7:0] Phase lock fill rate Phase lock fill rate, Bits[7:0]. 0x062C [7:0] Phase lock drain rate Phase lock drain rate, Bits[7:0]. 0x062D [7:0] Frequency lock threshold (expressed in units of ps) Frequency lock threshold, Bits[7:0]. 0x062E [7:0] Frequency lock threshold, Bits[15:8]. 0x062F [7:0] Frequency lock threshold, Bits[23:16]. 0x0630 [7:0] Frequency lock fill rate Frequency lock fill rate, Bits[7:0]. 0x0631 [7:0] Frequency lock drain rate Frequency lock drain rate, Bits[7:0]. Register 0x0632 to Register 0x067F—Profile 1 Table 88. Priorities—Profile 1 Address Bit Bit Name Description 0x0632 [7:6] Unused Unused. [5:3] Promoted priority User-assigned priority level (0 to 7) of the reference associated with Profile 1 while that reference is the active reference. The numeric value of the promoted priority must be less than or equal to the numeric value of the selection priority. [2:0] Selection priority User-assigned priority level (0 to 7) of the reference associated with Profile 1, which ranks that reference relative to the others. Table 89. Reference Period—Profile 1 Address Bit Bit Name Description 0x0633 [7:0] Reference period (expressed in units of fs) Nominal reference period, Bits[7:0]. 0x0634 [7:0] Nominal reference period, Bits[15:8]. 0x0635 [7:0] Nominal reference period, Bits[23:16]. 0x0636 [7:0] Nominal reference period, Bits[31:24]. 0x0637 [7:0] Nominal reference period, Bits[39:32]. 0x0638 [7:0] Unused Unused. Write 0s to these bits. 0x0639 [7:0] Table 90. Tolerance—Profile 1 Address Bit Bit Name Description 0x063A [7:0] Inner tolerance Inner tolerance, Bits[7:0]. 0x063B [7:0] Inner tolerance, Bits[15:8]. 0x063C [7:4] Unused Unused. [3:0] Inner tolerance Inner tolerance, Bits[19:16]. 0x063D [7:0] Outer tolerance Outer tolerance, Bits[7:0]. 0x063E [7:0] Outer tolerance, Bits[15:8]. 0x063F [7:4] Unused Unused. [3:0] Outer tolerance Outer tolerance, Bits[19:16]. |
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