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參數(shù)資料
| 型號： | AD9516-4/PCBZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 77/80頁 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR AD9516-4 1.8GHZ |
| 產(chǎn)品培訓模塊： | Active Filter Design Tools |
| 設(shè)計資源： | AD9516 Eval Brd Schematic AD9516 Gerber Files AD9516-4 BOM |
| 標準包裝： | 1 |
| 主要目的： | 計時，時鐘發(fā)生器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | AD9516-4 |
| 主要屬性： | 2 輸入，14 輸出，1.6GHz VCO |
| 次要屬性： | CMOS、LVDS、LVPECL 輸出邏輯，ADIsimCLK&trade 圖形用戶界面 |
| 已供物品： | 板，線纜，CD，電源 |
| 產(chǎn)品目錄頁面： | 776 (CN2011-ZH PDF) |
| 相關(guān)產(chǎn)品： | AD9516-4BCPZ-REEL7-ND - IC CLOCK GEN 1.8GHZ VCO 64-LFCSP AD9516-4BCPZ-ND - IC CLOCK GEN 1.6GHZ VCO 64-LFCSP |
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Data Sheet
AD9516-4
Rev. C | Page 79 of 80
CMOS CLOCK DISTRIBUTION
The AD9516 provides four clock outputs (OUT6 to OUT9)
that are selectable as either CMOS or LVDS level outputs.
When selected as CMOS, each output becomes a pair of CMOS
outputs, each of which can be individually turned on or off and
set as noninverting or inverting. These outputs are 3.3 V CMOS
compatible.
Whenever single-ended CMOS clocking is used, some of the
following general guidelines should be used.
Point-to-point nets should be designed such that a driver has
only one receiver on the net, if possible. This allows for simple
termination schemes and minimizes ringing due to possible
mismatched impedances on the net. Series termination at the
source is generally required to provide transmission line
matching and/or to reduce current transients at the driver.
The value of the resistor is dependent on the board design and
timing requirements (typically 10 to 100 is used). CMOS
outputs are also limited in terms of the capacitive load or trace
length that they can drive. Typically, trace lengths less than
3 inches are recommended to preserve signal rise/fall times and
preserve signal integrity.
CMOS
10
60.4
(1.0 INCH)
MICROSTRIP
06423-
076
Figure 75. Series Termination of CMOS Output
Termination at the far-end of the PCB trace is a second option.
The CMOS outputs of the AD9516 do not supply enough
current to provide a full voltage swing with a low impedance
resistive, far-end termination, as shown in Figure 76. The far-
end termination network should match the PCB trace impedance
and provide the desired switching point. The reduced signal
swing may still meet receiver input requirements in some
applications. This can be useful when driving long trace
lengths on less critical nets.
CMOS
10
50
100
VS
06423-
077
Figure 76. CMOS Output with Far-End Termination
Because of the limitations of single-ended CMOS clocking,
consider using differential outputs when driving high speed
signals over long traces. The AD9516 offers both LVPECL and
LVDS outputs that are better suited for driving long traces
where the inherent noise immunity of differential signaling
provides superior performance for clocking converters.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9516-5 | 制造商:AD 制造商全稱:Analog Devices 功能描述:14-Output Clock Generator |
| AD9516-5/PCBZ | 功能描述:BOARD EVAL FOR AD9516-5 2.5GHZ RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:- 標準包裝:1 系列:- 主要目的:電信，線路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線纜，CD 其它名稱:82EBV2081 |
| AD9516-5BCPZ | 功能描述:IC CLOCK GEN W/PLL 64-LFCSP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:- 標準包裝:2,000 系列:- 類型:PLL 時鐘發(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 頻率 - 最大:240MHz 除法器/乘法器:是/無 電源電壓:3.135 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:32-LQFP 供應商設(shè)備封裝:32-TQFP（7x7） 包裝:帶卷 (TR) |
| AD9516-5BCPZ-REEL7 | 功能描述:IC CLOCK GEN W/PLL 64-LFCSP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:- 標準包裝:2,000 系列:- 類型:PLL 時鐘發(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 頻率 - 最大:240MHz 除法器/乘法器:是/無 電源電壓:3.135 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:32-LQFP 供應商設(shè)備封裝:32-TQFP（7x7） 包裝:帶卷 (TR) |
| AD9516-5PCBZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:14-Output Clock Generator |
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