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参数资料
| 型号： | ICS843256AGILF |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 333.33 MHz, OTHER CLOCK GENERATOR, PDSO24 |
| 封装： | 4.40 X 7.80 MM, 0.92 MM HEIGHT, ROHS COMPLIANT, MO-153, TSSOP-24 |
| 文件页数： | 12/13页 |
| 文件大小： | 222K |
| 代理商： | ICS843256AGILF |
843256AMI
www.icst.com/products/hiperclocks.html
REV. A JUNE 16, 2006
8
Integrated
Circuit
Systems, Inc.
ICS843256I
FEMTOCLOCKS CRYSTAL-TO-3.3V LVPECL
FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER
PRELIMINARY
As in any high speed analog circuitry, the power supply pins
are vulnerable to random noise. The ICS843256I 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 iso-
lation is required.
Figure 1 illustrates how a 10
resistor along
with a 10
F and a .01F bypass capacitor should be con-
nected to each V
CCA pin. The 10 resistor can also be re-
placed by a ferrite bead.
POWER SUPPLY FILTERING TECHNIQUES
FIGURE 1. POWER SUPPLY FILTERING
10
V
CCA
10
F
.01
F
3.3V
.01
F
V
CC
APPLICATION INFORMATION
CRYSTAL INPUT INTERFACE
The ICS843256I has been characterized with 18pF parallel
resonant crystals. The capacitor values shown in
Figure 2
Figure 2. CRYSTAL INPUt INTERFACE
below were determined using an 18pF parallel resonant
crystal and were chosen to minimize the ppm error.
C1
18p
X1
18pF Parallel Crystal
C2
22p
XTAL_IN
XTAL_OUT
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PDF描述 |
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| ICS843256AMI | 333.33 MHz, OTHER CLOCK GENERATOR, PDSO24 |
| ICS843256AMIT | 333.33 MHz, OTHER CLOCK GENERATOR, PDSO24 |
| ICS843256AGIT | 333.33 MHz, OTHER CLOCK GENERATOR, PDSO24 |
| ICS843256AMLFT | 333.33 MHz, OTHER CLOCK GENERATOR, PDSO24 |
| ICS843256AGLFT | 333.33 MHz, OTHER CLOCK GENERATOR, PDSO24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS843256AGLF | 制造商:ICS 制造商全称:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER |
| ICS843256AGLFT | 制造商:ICS 制造商全称:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER |
| ICS843256AGT | 制造商:ICS 制造商全称:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER |
| ICS843256AM | 制造商:ICS 制造商全称:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER |
| ICS843256AMLF | 制造商:ICS 制造商全称:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER W/INTEGRATED FANOUT BUFFER |
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