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參數(shù)資料
| 型號： | ICS842031AGI-01T |
| 元件分類： | 時鐘產(chǎn)生/分配 |
| 英文描述： | 340 MHz, OTHER CLOCK GENERATOR, PDSO8 |
| 封裝： | 4.40 X 3 MM, 0.925 MM HEIGHT, MO-153, TSSOP-8 |
| 文件頁數(shù)： | 6/9頁 |
| 文件大小： | 150K |
| 代理商： | ICS842031AGI-01T |
842031AGI-01
www.icst.com/products/hiperclocks.html
REV. A JUNE 21, 2005
6
Integrated
Circuit
Systems, Inc.
ICS842031I-01
FEMTOCLOCKSCRYSTAL-TO- HSTL
CLOCK GENERATOR
PRELIMINARY
APPLICATION INFORMATION
CRYSTAL INPUT INTERFACE
The ICS842031I-01 has been characterized with 18pF parallel
resonant crystals. The capacitor values, C1 and C2, shown in
Figure 2 below were determined using a 25MHz, 18pF parallel
resonant crystal and were chosen to minimize the ppm error.
The optimum C1 and C2 values can be slightly adjusted for dif-
ferent board layouts.
POWER SUPPLY FILTERING TECHNIQUES
As in any high speed analog circuitry, the power supply pins
are vulnerable to random noise. The ICS842031I-01 provides
separate power supplies to isolate any high switching
noise from the outputs to the internal PLL. V
DD and VDDA should
be
individually
connected
to
the
power
supply
plane through vias, and bypass capacitors should be
used for each pin. To achieve optimum jitter performance,
power supply isolation is required.
Figure 1 illustrates how
a 10
Ω resistor along with a 10μF and a .01μF bypass
capacitor should be connected to each V
DDA pin.
FIGURE 1. POWER SUPPLY FILTERING
10
Ω
V
DDA
10
μF
.01
μF
3.3V or 2.5V
.01
μF
V
DD
Figure 2. CRYSTAL INPUt INTERFACE
ICS84332
XTAL_IN
XTAL_OUT
X1
18pF Parallel Cry stal
C2
22p
C1
22p
ICS842031I-01
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS842031I-01 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO- HSTL CLOCK GENERATOR |
| ICS8421002AGI | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS? CRYSTAL-TO-HSTL FREQUENCY SYNTHESIZER |
| ICS8421002AGI-01 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS? CRYSTAL-TO-HSTL FREQUENCY SYNTHESIZER |
| ICS8421002AGI-01LF | 功能描述:IC FREQ SYNTHESIZER 20-TSSOP 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:HiPerClockS™, FemtoClock™ 標(biāo)準(zhǔn)包裝:27 系列:Precision Edge® 類型:頻率合成器 PLL:是 輸入:PECL，晶體 輸出:PECL 電路數(shù):1 比率 - 輸入:輸出:1:1 差分 - 輸入:輸出:無/是 頻率 - 最大:800MHz 除法器/乘法器:是/無 電源電壓:3.135 V ~ 5.25 V 工作溫度:0°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件 |
| ICS8421002AGI-01LFT | 功能描述:IC FREQ SYNTHESIZER 20-TSSOP 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:HiPerClockS™, FemtoClock™ 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:時鐘/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:- 安裝類型:表面貼裝 封裝/外殼:56-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:56-VFQFP-EP（8x8） 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT |
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