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參數(shù)資料
| 型號(hào)： | ICS843321AGI-12LF |
| 廠商： | IDT, Integrated Device Technology Inc |
| 文件頁(yè)數(shù)： | 12/14頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC SYNTHESIZER CLK SONET 8TSSOP |
| 標(biāo)準(zhǔn)包裝： | 96 |
| 系列： | HiPerClockS™, FemtoClock™ |
| 類(lèi)型： | 時(shí)鐘發(fā)生器 |
| PLL： | 是 |
| 輸入： | 晶體 |
| 輸出： | LVPECL |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 1:1 |
| 差分 - 輸入:輸出： | 無(wú)/是 |
| 頻率 - 最大： | 622.08MHz |
| 除法器/乘法器： | 是/無(wú) |
| 電源電壓： | 2.375 V ~ 3.465 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-TSSOP |
| 包裝： | 管件 |
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ICS843321I-12
FEMTOCLOCKCRYSTAL-TO-3.3V, 2.5V LVPECL CLOCK GENERATOR
IDT / ICS 3.3V, 2.5V LVPECL CLOCK GENERATOR
7
ICS843321AGI-12 REV. A FEBRUARY 27, 2009
Application Information
Power Supply Filtering Technique
As in any high speed analog circuitry, the power supply pins are
vulnerable to random noise. To achieve optimum jitter perform-
ance, power supply isolation is required. The ICS843321I-12
provides separate power supplies to isolate any high switching
noise from the outputs to the internal PLL. VCC and VCCA should
be individually connected to the power supply plane through vias,
and 0.01F bypass capacitors should be used for each pin. Figure
1 illustrates this for a generic VCC pin and also shows that VCCA
requires that an additional 10
resistor along with a 10F bypass
capacitor be connected to the VCCA pin.
Figure 1. Power Supply Filtering
Crystal Input Interface
The ICS843321I-12 has been characterized with 18pF parallel
resonant crystals. The capacitor values, C1 and C2, shown in
Figure 2 below were determined using an 18pF parallel resonant
crystal and were chosen to minimize the ppm error. The optimum
C1 and C2 values can be slightly adjusted for different board
layouts.
Figure 2. Crystal Input Interface
VCC
VCCA
3.3V
10
10F
.01F
XTAL_IN
XTAL_OUT
X1
18pF Parallel Crystal
C1
27p
C2
27p
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS843321AGI-12LFT | 功能描述:IC SYNTHESIZER CLK SONET 8TSSOP 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:HiPerClockS™, FemtoClock™ 標(biāo)準(zhǔn)包裝:1,000 系列:- 類(lèi)型:時(shí)鐘/頻率合成器，扇出分配 PLL:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 除法器/乘法器:- 電源電壓:- 工作溫度:- 安裝類(lèi)型:表面貼裝 封裝/外殼:56-VFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:56-VFQFP-EP（8x8） 包裝:帶卷 (TR) 其它名稱(chēng):844S012AKI-01LFT |
| ICS843321AGI-12T | 制造商:Integrated Device Technology Inc 功能描述:IC SYNTHESIZER CLK SONET 8TSSOP |
| ICS843404 | 制造商:ICS 制造商全稱(chēng):ICS 功能描述:LVCMOS/CRYSTAL-TO-3.3V LVPECL AND LVDS CLOCK GENERATOR |
| ICS843404AG | 制造商:ICS 制造商全稱(chēng):ICS 功能描述:LVCMOS/CRYSTAL-TO-3.3V LVPECL AND LVDS CLOCK GENERATOR |
| ICS843404AGLF | 制造商:ICS 制造商全稱(chēng):ICS 功能描述:LVCMOS/CRYSTAL-TO-3.3V LVPECL AND LVDS CLOCK GENERATOR |
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