參數(shù)資料
型號: AD9549ABCPZ
廠商: Analog Devices Inc
文件頁數(shù): 57/76頁
文件大?。?/td> 0K
描述: IC CLOCK GEN/SYNCHRONIZR 64LFCSP
產(chǎn)品變化通告: AD9549A Mask Change 22/Oct/2010
標(biāo)準(zhǔn)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,HSTL
電路數(shù): 1
比率 - 輸入:輸出: 2:2
差分 - 輸入:輸出: 是/是
頻率 - 最大: 750MHz
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: 64-VFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 64-LFCSP-VQ(9x9)
包裝: 托盤
產(chǎn)品目錄頁面: 776 (CN2011-ZH PDF)
AD9549
Rev. D | Page 60 of 76
Register 0x0121—FTW Upper Limit
Table 53.
Bits
Bit Name
Description
[7:0]
FTW upper limit
Highest DDS tuning word in closed- loop mode. This feature is recommended when a band-pass
reconstruction filter is used. See the Output Frequency Range Control section.
Register 0x0122—FTW Upper Limit (Continued)
Table 54.
Bits
Bit Name
Description
[15:8]
FTW upper limit
Highest DDS tuning word in closed- loop mode. This feature is recommended when a band-pass
reconstruction filter is used. See the Output Frequency Range Control section.
Register 0x0123—FTW Upper Limit (Continued)
Table 55.
Bits
Bit Name
Description
[23:16]
FTW upper limit
Highest DDS tuning word in closed- loop mode. This feature is recommended when a band-pass
reconstruction filter is used. See the Output Frequency Range Control section.
Register 0x0124—FTW Upper Limit (Continued)
Table 56.
Bits
Bit Name
Description
[31:24]
FTW upper limit
Highest DDS tuning word in closed- loop mode. This feature is recommended when a band-pass
reconstruction filter is used. See the Output Frequency Range Control section.
Register 0x0125—FTW Upper Limit (Continued)
Table 57.
Bits
Bit Name
Description
[39:32]
FTW upper limit
Highest DDS tuning word in closed- loop mode. This feature is recommended when a band-pass
reconstruction filter is used. See the Output Frequency Range Control section.
Register 0x0126—FTW Upper Limit (Continued)
Table 58.
Bits
Bit Name
Description
[47:40]
FTW upper limit
Highest DDS tuning word in closed- loop mode. This feature is recommended when a band-pass
reconstruction filter is used. See the Output Frequency Range Control section.
Register 0x0127 to Register 0x012C—Frequency Slew Limit
Table 59.
Bits
Bit Name
Description
[47:0]
Frequency slew limit
Register 0x012D to Register 0x0130—Reserved
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