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參數(shù)資料
| 型號： | ICS8430AYI-61LFT |
| 廠商： | IDT, Integrated Device Technology Inc |
| 文件頁數(shù)： | 20/20頁 |
| 文件大小： | 0K |
| 描述： | IC SYNTHESIZER LVPECL 32-LQFP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | * |
| 其它名稱： | 800-2587-6 |
8430AYI-61
www.icst.com/products/hiperclocks.html
REV. C JUNE 2, 2006
9
Integrated
Circuit
Systems, Inc.
ICS8430I-61
500MHZ, CRYSTAL-TO-3.3V, 2.5V DIFFERENTIAL
LVPECL FREQUENCY SYNTHESIZER
APPLICATION INFORMATION
As in any high speed analog circuitry, the power supply pins
are vulnerable to random noise. The ICS8430I-61 provides
separate power supplies to isolate any high switching
noise from the outputs to the internal PLL. V
CC, VCCA, and VCCO
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 2 illustrates how
a 10
Ω resistor along with a 10μF and a .01μF bypass
capacitor should be connected to each V
CCA pin. The 10Ω
resistor can also be replaced by a ferrite bead.
POWER SUPPLY FILTERING TECHNIQUES
FIGURE 2. POWER SUPPLY FILTERING
10
Ω
V
CCA
10
μF
.01
μF
3.3V or 2.5V
.01
μF
V
CC
Figure 3. CRYSTAL INPUt INTERFACE
CRYSTAL INPUT INTERFACE
The ICS8430I-61 has been characterized with 18pF parallel
resonant crystals. The capacitor values, C1 and C2, shown
in Figure 3 below were determined using an 18pF parallel
resonant crystal and were chosen to minimize the ppm error.
These same capacitor values will tune any 18pF parallel reso-
nant crystal over the frequency range and other parameters
specified in this data sheet. The optimum C1 and C2 values
can be slightly adjusted for different board layouts.
ICS84332
XTAL_IN
XTAL_OUT
X1
18pF Parallel Cry stal
C2
22p
C1
22p
ICS8430-61
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS8430AYI-61T | 制造商:ICS 制造商全稱:ICS 功能描述:500MHZ, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS8430BI-71L | 制造商:ICS 制造商全稱:ICS 功能描述:700MHZ, LOW JITTER, CRYSTAL INTERFACE / LVCMOS-TO-3.3V LVPECL FREQUENCY SYNTHESIZER |
| ICS8430BY-71 | 制造商:ICS 制造商全稱:ICS 功能描述:700MHZ, LOW JITTER, CRYSTAL INTERFACE / LVCMOS-TO-3.3V LVPECL FREQUENCY SYNTHESIZER |
| ICS8430BY71L | 制造商:ICS 制造商全稱:ICS 功能描述:700MHZ, LOW JITTER, CRYSTAL INTERFACE / LVCMOS-TO-3.3V LVPECL FREQUENCY SYNTHESIZER |
| ICS8430BY-71LF | 功能描述:IC SYNTHESIZR DUAL LVPECL 32LQFP 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™ 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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