參數(shù)資料
型號(hào)： AD9548/PCBZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 103/112頁(yè)
文件大小： 0K
描述： BOARD EVAL FOR AD9548
產(chǎn)品變化通告： AD9548 Mask Change 20/Oct/2010
設(shè)計(jì)資源： AD9548 Schematic
AD9548 BOM
AD9548 Eval Brd Layers
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： 否
已用 IC / 零件： AD9548
主要屬性： 62.5 ~ 450 MHz 輸出頻率
次要屬性： SPI 和 I2C 兼容控制端口
已供物品： 板
AD9548
Data Sheet
Rev. E | Page 90 of 112
Table 108. Lock Detectors—Profile 2
Address
Bits
Bit Name
Description
0x06A9
[7:0]
Phase lock threshold
(units determined by
Register 0x0680[7])
Phase lock threshold, Bits[7:0]
0x06AA
[7:0]
Phase lock threshold, Bits[15:8]
0x06AB
[7:0]
Phase lock fill rate
Phase lock fill rate, Bits[7:0]
0x06AC
[7:0]
Phase lock drain rate
Phase lock drain rate, Bits[7:0]
0x06AD
[7:0]
Frequency lock
thresh-old (in
picoseconds)
Frequency lock threshold, Bits[7:0]
0x06AE
[7:0]
Frequency lock threshold, Bits[15:8]
0x06AF
[7:0]
Frequency lock threshold, Bits[23:16]
0x06B0
[7:0]
Frequency lock fill rate
Frequency lock fill rate, Bits[7:0]
0x06B1
[7:0]
Frequency lock drain
rate
Frequency lock drain rate, Bits[7:0]
Register 0x06B2 to Register 0x07FF—Profile 3
Table 109. Priorities—Profile 3
Address
Bits
Bit Name
Description
0x06B2
[7]
Phase lock scale
Controls the phase lock threshold unit scaling.
0 = picoseconds.
1 = nanoseconds.
[6]
Unused
[5:3]
Promoted priority
User assigned priority level (0 to 7) of the reference associated with Profile 3 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 3, which
ranks that reference relative to the others.
Table 110. Reference Period—Profile 3
Address
Bits
Bit Name
Description
0x06B3
[7:0]
Reference period (in
femtoseconds)
Nominal reference period, Bits[7:0]
0x06B4
[7:0]
Nominal reference period, Bits[15:8]
0x06B5
[7:0]
Nominal reference period, Bits[23:16]
0x 06B6
[7:0]
Nominal reference period, Bits[31:24]
0x06B7
[7:0]
Nominal reference period, Bits[39:32]
0x06B8
[7:0]
Nominal reference period, Bits[47:40]
0x06B9
[7:2]
Unused
[1:0]
Reference period
Nominal reference period, Bits[49:48]
Table 111. Tolerance—Profile 3
Address
Bits
Bit Name
Description
0x06BA
[7:0]
Inner tolerance
Inner tolerance, Bits[7:0]
0x06BB
[7:0]
Inner tolerance, Bits[15:8]
0x06BC
[7:4]
Unused
[3:0]
Inner tolerance
Inner tolerance, Bits[19:16]
0x06BD
[7:0]
Outer tolerance
Outer tolerance, Bits[7:0]
0x06BE
[7:0]
Outer tolerance, Bits[15:8]
0x06BF
[7:4]
Unused
[3:0]
Outer tolerance
Outer tolerance, Bits[19:16]
Table 112. Validation Timer—Profile 3
Address
Bits
Bit Name
Description
0x06C0
[7:0]
Validation timer
(in milliseconds)
Validation timer, Bits[7:0]
0x06C1
[7:0]
Validation timer, Bits[15:8]
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