參數(shù)資料
型號(hào): AD9547/PCBZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 87/104頁(yè)
文件大?。?/td> 0K
描述: BOARD EVALUATION FOR AD9547
設(shè)計(jì)資源: AD9547 Schematic
AD9574 BOM
標(biāo)準(zhǔn)包裝: 1
主要目的: 計(jì)時(shí),時(shí)鐘發(fā)生器
嵌入式:
已用 IC / 零件: AD9547
主要屬性: 2 個(gè)差分式或 4 個(gè)單端輸入
次要屬性: CMOS,LVPECL 和 LVDS 兼容
已供物品:
Data Sheet
AD9547
Rev. E | Page 83 of 104
Table 96. S Divider—Profile 11
Address
Bit
Bit Name
Description
0x0654
[7:0]
S
S, Bits[7:0].
0x0655
[7:0]
S
S, Bits[15:8].
0x0656
[7:4]
Unused
Unused.
[3:0]
S
S, Bits[19:16].
0x0657
[7:0]
Unused
Unused.
1
The value stored in the S divider register yields an actual divide ratio of one more than the programmed value. Furthermore, the value of S must be at least 7.
Table 97. Fractional FeedbackDivider—Profile 1
Address
Bit
Bit Name
Description
0x0658
[7:0]
V
V, Bits[7:0].
0x0659
[7:4]
U
U, Bits[3:0].
[3:2]
Unused
Unused.
[1:0]
V
V, Bits[9:8].
0x065A
[7:6]
Unused
Unused.
[5:0]
U
U, Bits[9:4].
Table 98. Lock Detectors—Profile 1
Address
Bit
Bit Name
Description
0x065B
[7:0]
Phase lock threshold (units determinedby Register 0x0632[7])
Phase lock threshold, Bits[7:0].
0x065C
[7:0]
Phase lock threshold, Bits[15:8].
0x065D
[7:0]
Phase lock fill rate
Phase lock fill rate, Bits[7:0].
0x065E
[7:0]
Phase lock drain rate
Phase lock drain rate, Bits[7:0].
0x065F
[7:0]
Frequency lock threshold(expressedinunits of ps)
Frequency lock threshold, Bits[7:0].
0x0660
[7:0]
Frequency lock threshold, Bits[15:8].
0x0661
[7:0]
Frequency lock threshold, Bits[23:16].
0x0662
[7:0]
Frequency lock fill rate
Frequency lock fill rate, Bits[7:0].
0x0663
[7:0]
Frequency lock drain rate
Frequency lock drain rate, Bits[7:0].
0x0664 to 0x067F
[7:0]
Unused
Unused.
Register0x0680 to Register0x06B1—Profile2
Table 99. Priorities—Profile 2
Address
Bit
Bit Name
Description
0x0680
[7]
Phase lock scale
Controls the phase lock threshold unit scaling.
0 = picoseconds.
1 = nanoseconds.
[6]
Unused
Unused.
[5:3]
Promotedpriority
User assigned priority level (0 to 7) of the reference associatedwith Profile 2 while
that reference is the active reference. The numeric value of the promotedpriority
must be less than or equal to the numeric value of the selectionpriority.
[2:0]
Selectionpriority
User assigned priority level (0 to 7) of the reference associatedwith Profile 2, which
ranks that reference relative to the others.
Table 100. Reference Period—Profile 2
Address
Bit
Bit Name
Description
0x0681
[7:0]
Reference period(expressedinunits of fs)
Nominal reference period, Bits[7:0].
0x0682
[7:0]
Nominal reference period, Bits[15:8].
0x0683
[7:0]
Nominal reference period, Bits[23:16].
0x0684
[7:0]
Nominal reference period, Bits[31:24].
0x0685
[7:0]
Nominal reference period, Bits[39:32].
0x0686
[7:0]
Unused
Unused. Write 0s to these bits.
0x0687
[7:0]
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