參數(shù)資料
型號: AD9548BCPZ
廠商: Analog Devices Inc
文件頁數(shù): 103/112頁
文件大?。?/td> 0K
描述: IC CLOCK GEN/SYNCHRONIZR 88LFCSP
產(chǎn)品變化通告: AD9548 Mask Change 20/Oct/2010
標準包裝: 1
類型: 時鐘/頻率發(fā)生器,同步器
PLL:
主要目的: 以太網(wǎng),SONET/SDH,Stratum
輸入: CMOS,LVDS,LVPECL
輸出: CMOS,LVDS,LVPECL
電路數(shù): 1
比率 - 輸入:輸出: 1:1
差分 - 輸入:輸出: 是/是
頻率 - 最大: 750kHz
電源電壓: 1.71 V ~ 3.465 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 88-VFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 88-LFCSP-VQ(12x12)
包裝: 托盤
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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