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參數(shù)資料
| 型號： | ICS843021AGLFT |
| 廠商： | IDT, Integrated Device Technology Inc |
| 文件頁數(shù)： | 12/15頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CLK GENERATOR LVPECL 8-TSSOP |
| 標準包裝： | 2,500 |
| 系列： | HiPerClockS™, FemtoClock™ |
| 類型： | 時鐘/頻率合成器，時鐘發(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/是 |
| 頻率 - 最大： | 140MHz |
| 除法器/乘法器： | 是/無 |
| 電源電壓： | 2.97 V ~ 3.63 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP（0.173"，4.40mm 寬） |
| 供應商設備封裝： | 8-TSSOP |
| 包裝： | 帶卷 (TR) |
| 其它名稱： | 843021AGLFT |
ICS843021AG REVISION D OCTOBER 12, 2010
6
2010 Integrated Device Technology, Inc.
ICS843021 Data Sheet
FEMTOCLOCK CRYSTAL-TO-3.3V LVPECL CLOCK GENERATOR
Applications 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 performance,
power supply isolation is required. The ICS843021 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 ICS843021 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 different board layouts.
Figure 2. Crystal Input Interface
VCC
VCCA
3.3V
10
10F
.01F
XTAL_IN
XTAL_OUT
X1
18pF Parallel Crystal
C1
33pF
C2
27pF
相關PDF資料 |
PDF描述 |
|---|---|
| ICS843022AGLF | IC CLK GENERATOR LVPECL 8-TSSOP |
| ICS843023AGLF | IC CLK GENERATOR LVPECL 8-TSSOP |
| ICS843031AG-01LF | IC CLK GENERATOR LVPECL 8-TSSOP |
| ICS843081AGI-01LF | IC CLK MULTIPLIER LVPECL 8-TSSOP |
| ICS8430AYI-61LF | IC SYNTHESIZER LVPECL 32-LQFP |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ICS843021AGT | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR |
| ICS843021I-01 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL-TO-3.3V, 2.5V 125MHZ LVPECL CLOCK GENERATOR |
| ICS843022 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR |
| ICS843022AG | 制造商:INT_DEV_TECH 功能描述: |
| ICS843022AGI-48LF | 功能描述:IC CLK SYNTHESIZER LVPECL 8TSSOP 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™ 標準包裝: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 供應商設備封裝:56-VFQFP-EP（8x8） 包裝:帶卷 (TR) 其它名稱:844S012AKI-01LFT |
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