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| 型号： | 8761CYILF |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | XO, clock |
| 英文描述： | 166.67 MHz, PROC SPECIFIC CLOCK GENERATOR, PQFP64 |
| 封装： | 10 X 10 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, MS-026BCD, LQFP-64 |
| 文件页数： | 16/16页 |
| 文件大小： | 284K |
| 代理商： | 8761CYILF |
8761CYI
www.idt.com
REV. C JULY 27, 2010
9
ICS8761I
LOW VOLTAGE, LOW SKEW,
PCI / PCI-X CLOCK GENERATOR
APPLICATION INFORMATION
C2
SPARE
XTAL2
XTAL1
X1
18pF Parallel Cry stal
C1
SPARE
CRYSTAL INPUT INTERFACE
The ICS8761I crystal interface is shown in Figure 2. While
layout the PC Board, it is recommended to provide C1 and
C2 spare footprints for frequency fine tuning. For an 18pF
FIGURE 2. CRYSTAL INPUT INTERFACE
parallel resonant crystal, the C1 and C2 are expected to be
~10pF and ~5pF respectively.
As in any high speed analog circuitry, the power supply pins
are vulnerable to random noise. The ICS8761I provides
separate power supplies to isolate any high switching
noise from the outputs to the internal PLL. V
DD, VDDA, and
V
DDOx 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 ferrite bead along with a 10F and a .01
μF bypass
capacitor should be connected to each V
DDA.
POWER SUPPLY FILTERING TECHNIQUES
FIGURE 1. POWER SUPPLY FILTERING
V
DDA
10
μF
.01
μF
3.3V
.01
μF
V
DD
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 8761CYILFT | 功能描述:时钟发生器及支持产品 RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56 |
| 8761CYLF | 功能描述:时钟发生器及支持产品 RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56 |
| 8761CYLFT | 制造商:Integrated Device Technology Inc 功能描述:Zero Delay PLL Clock Generator Single 64-Pin LQFP T/R 制造商:Integrated Device Technology Inc 功能描述:64 LQFP (LEAD-FREE) - Tape and Reel |
| 8761CYLN | 制造商:IDT from Components Direct 功能描述:IDT 8761CYLN PLL - Trays 制造商:IDT 功能描述:IDT 8761CYLN PLL |
| 8761CYT | 制造商:Integrated Device Technology Inc 功能描述:8761CYT - Tape and Reel |
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