参数资料
型号: AD9549ABCPZ-REEL7
厂商: Analog Devices Inc
文件页数: 69/76页
文件大小: 0K
描述: IC CLOCK GEN/SYNCHRONIZR 64LFCSP
产品变化通告: AD9549A Mask Change 22/Oct/2010
标准包装: 750
类型: 时钟/频率发生器,同步器
PLL:
主要目的: 以太网,SONET/SDH,Stratum
输入: CMOS,LVDS,LVPECL
输出: CMOS,HSTL
电路数: 1
比率 - 输入:输出: 2:2
差分 - 输入:输出: 是/是
频率 - 最大: 750MHz
电源电压: 1.71 V ~ 3.465 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-VFQFN 裸露焊盘,CSP
供应商设备封装: 64-LFCSP-VQ(9x9)
包装: 带卷 (TR)
AD9549
Rev. D | Page 71 of 76
Register 0x0406—Part Version
Table 127.
Bits
Bit Name
Description
[7:6]
Part version
01b = AD9549, Revision A
00b = AD9549, Revision 0
[5:0]
Reserved
N/A
Register 0x0407 to Register 0x0408—Reserved
Register 0x0409—PFD Offset
Table 128.
Bits
Bit Name
Description
[7:0]
DPLL phase offset
This register controls the static time offset of the PFD (phase frequency detector) in closed-loop mode.
It has no effect when the DPLL is open.
Register 0x040A—PFD Offset (Continued)
Table 129.
Bits
Bit Name
Description
[13:8]
DPLL phase offset
This register controls the static time offset of the PFD (phase frequency detector) in closed-loop mode.
It has no effect when the DPLL is open.
Register 0x040B—DAC Full-Scale Current
Table 130.
Bits
Bit Name
Description
[7:0]
DAC full-scale current
DAC full-scale current, Bits[7:0]. See the DAC Output section.
Register 0x040C—DAC Full-Scale Current (Continued)
Table 131.
Bits
Bit Name
Description
[9:8]
DAC full-scale current
DAC full-scale current, Bits[9:8]. See Register 0x040B.
Register 0x040D to Register 0x040E—Reserved
Register 0x040F—Reference Bias Level
Table 132.
Bits
Bit Name
Description
[7:2]
Reserved
Reserved.
[1:0]
DC input level
This register sets the dc bias level for the reference inputs. The value should be chosen such that V
IH is
as close as possible to, but does not exceed, 3.3 V.
00 = VDD3 800 mV.
01 = VDD3 400 mV.
10 = VDD3 1.6 V.
11 = VDD3 1.2 V.
Register 0x0410—Reserved
HARMONIC SPUR REDUCTION (REGISTER 0x0500 TO REGISTER 0x0509)
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