參數(shù)資料
型號(hào): AD9512UCPZ-EP
廠商: Analog Devices Inc
文件頁(yè)數(shù): 22/48頁(yè)
文件大小: 0K
描述: IC CLOCK DIST 5OUT PLL 48LFCSP
標(biāo)準(zhǔn)包裝: 1
類(lèi)型: 扇出緩沖器(分配),除法器
PLL: 無(wú)
輸入: 時(shí)鐘
輸出: LVCMOS,LVDS,LVPECL
電路數(shù): 1
比率 - 輸入:輸出: 1:5
差分 - 輸入:輸出: 是/是
頻率 - 最大: 1.2GHz
除法器/乘法器: 是/無(wú)
電源電壓: 3.135 V ~ 3.465 V
工作溫度: -55°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 48-VFQFN 裸露焊盤(pán),CSP
供應(yīng)商設(shè)備封裝: 48-LFCSP-VQ(7x7)
包裝: 托盤(pán)
AD9512
Rev. A | Page 29 of 48
Divider Phase Offset
The phase of each output may be selected, depending on the
divide ratio chosen. This is selected by writing the appropriate
values to the registers, which set the phase and start high/low
bit for each output. These are the odd numbered registers from
4Bh to 53h. Each divider has a 4-bit phase offset <3:0> and a
start high or low bit <4>.
Following a sync pulse, the phase offset word determines how
many fast clock (CLK1 or CLK2) cycles to wait before initiating
a clock output edge. The Start H/L bit determines if the divider
output starts low or high. By giving each divider a different
phase offset, output-to-output delays can be set in increments of
the fast clock period, tCLK.
Figure 25 shows three dividers, each set for DIV = 4, 50% duty
cycle. By incrementing the phase offset from 0 to 2, each output
is offset from the initial edge by a multiple of tCLK.
05287-091
123456
789
10
11 12
13
14
15
0
CLOCK INPUT
CLK
DIVIDER OUTPUTS
DIV = 4, DUTY = 50%
START = 0,
PHASE = 0
START = 0,
PHASE = 1
START = 0,
PHASE = 2
tCLK
2
× t
CLK
Figure 25. Phase Offset—All Dividers Set for DIV = 4, Phase Set from 0 to 2
For example:
CLK1 = 491.52 MHz
tCLK1 = 1/491.52 = 2.0345 ns
For DIV = 4
Phase Offset 0 = 0 ns
Phase Offset 1 = 2.0345 ns
Phase Offset 2 = 4.069 ns
The three outputs may also be described as:
OUT1 = 0°
OUT2 = 90°
OUT3 = 180°
Setting the phase offset to Phase = 4 results in the same relative
phase as the first channel, Phase = 0° or 360°.
In general, by combining the 4-bit phase offset and the Start
H/L bit, there are 32 possible phase offset states (see Table 13).
Table 13. Phase Offset—Start H/L Bit
4Bh to 53h
Phase Offset
(Fast Clock
Rising Edges)
Phase Offset <3:0>
Start H/L <4>
0
1
0
2
0
3
0
4
0
5
0
6
0
7
0
8
0
9
0
10
0
11
0
12
0
13
0
14
0
15
0
16
0
1
17
1
18
2
1
19
3
1
20
4
1
21
5
1
22
6
1
23
7
1
24
8
1
25
9
1
26
10
1
27
11
1
28
12
1
29
13
1
30
14
1
31
15
1
The resolution of the phase offset is set by the fast clock period
(tCLK) at CLK1 or CLK2. As a result, every divide ratio does not
have 32 unique phase offsets available. For any divide ratio, the
number of unique phase offsets is numerically equal to the
divide ratio (see Table 13):
DIV = 4
Unique Phase Offsets Are Phase = 0, 1, 2, 3
DIV= 7
Unique Phase Offsets Are Phase = 0, 1, 2, 3, 4, 5, 6
相關(guān)PDF資料
PDF描述
AD9513BCPZ-REEL7 IC CLOCK DIST 3OUT PLL 32LFCSP
AD9514BCPZ-REEL7 IC CLOCK DIST 3OUT PLL 32LFCSP
AD9515BCPZ-REEL7 IC CLOCK DIST 2OUT PLL 32LFCSP
AD9516-0BCPZ IC CLOCK GEN 2.8GHZ VCO 64-LFCSP
AD9516-1BCPZ-REEL7 IC CLOCK GEN 2.5GHZ VCO 64-LFCSP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD9512UCPZ-EP-R7 功能描述:IC CLOCK DIST 5OUT PLL 48LFCSP RoHS:是 類(lèi)別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器,PLL,頻率合成器 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:- 類(lèi)型:PLL 時(shí)鐘發(fā)生器 PLL:帶旁路 輸入:LVCMOS,LVPECL 輸出:LVCMOS 電路數(shù):1 比率 - 輸入:輸出:2:11 差分 - 輸入:輸出:是/無(wú) 頻率 - 最大:240MHz 除法器/乘法器:是/無(wú) 電源電壓:3.135 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:32-LQFP 供應(yīng)商設(shè)備封裝:32-TQFP(7x7) 包裝:帶卷 (TR)
AD9513 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:800 MHz Clock Distribution IC, Dividers, Delay Adjust, Three Outputs
AD9513/PCB 制造商:Analog Devices 功能描述:EVAL BD FOR AD9513 ,800 MHZ CLOCK DISTRIBUTION IC, DIVIDERS, - Bulk
AD9513/PCBZ 功能描述:BOARD EVAL FOR AD9513 RoHS:是 類(lèi)別:編程器,開(kāi)發(fā)系統(tǒng) >> 評(píng)估演示板和套件 系列:- 標(biāo)準(zhǔn)包裝:1 系列:PSoC® 主要目的:電源管理,熱管理 嵌入式:- 已用 IC / 零件:- 主要屬性:- 次要屬性:- 已供物品:板,CD,電源
AD9513BCPZ 功能描述:IC CLOCK DIST 3OUT PLL 32LFCSP RoHS:是 類(lèi)別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器,PLL,頻率合成器 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:- 類(lèi)型:PLL 頻率合成器 PLL:是 輸入:晶體 輸出:時(shí)鐘 電路數(shù):1 比率 - 輸入:輸出:1:1 差分 - 輸入:輸出:無(wú)/無(wú) 頻率 - 最大:1GHz 除法器/乘法器:是/無(wú) 電源電壓:4.5 V ~ 5.5 V 工作溫度:-20°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:16-LSSOP(0.175",4.40mm 寬) 供應(yīng)商設(shè)備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱(chēng):NJW1504V-TE1-NDNJW1504V-TE1TR