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参数资料
| 型号： | ICS843101AGI-312LFT |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 312.5 MHz, OTHER CLOCK GENERATOR, PDSO16 |
| 封装： | 4.4 X 5 MM, 0.92 MM HEIGHT, ROHS COMPLIANT, MO-153, TSSOP-16 |
| 文件页数： | 2/17页 |
| 文件大小： | 314K |
| 代理商： | ICS843101AGI-312LFT |
843101AGI-312
www.icst.com/products/hiperclocks.html
REV. A NOVEMBER 1, 2005
10
Integrated
Circuit
Systems, Inc.
ICS843101I-312
FEMTOCLOCKSCRYSTAL-TO-LVPECL
312.5MHZ FREQUENCY MARGINING SYNTHESIZER
PRELIMINARY
CRYSTAL INPUT INTERFACE
The ICS843101I-312 has been characterized with 18pF
parallel resonant crystals. The capacitor values shown in
Figure 3 below were determined using a 25MHz, 18pF par-
Figure 3. CRYSTAL INPUt INTERFACE
allel resonant crystal and were chosen to minimize the
ppm error.
APPLICATION INFORMATION
As in any high speed analog circuitry, the power supply pins
are vulnerable to random noise. The ICS843101I-312 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 10F and a .01μF bypass
capacitor should be connected to each V
CCA. The 10Ω resis-
tor 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
C1
27p
X1
18pF Parallel Crystal
C2
27p
XTAL_OUT
XTAL_IN
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| ICS843101IAG-100LFT | 100 MHz, OTHER CLOCK GENERATOR, PDSO16 |
| ICS843101IAG-100LF | 100 MHz, OTHER CLOCK GENERATOR, PDSO16 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS843101AGI-312T | 制造商:ICS 制造商全称:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-LVPECL 312.5MHZ FREQUENCY MARGINING SYNTHESIZER |
| ICS843101I-100 | 制造商:ICS 制造商全称:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-LVPECL 100MHZ FREQUENCY MARGINING SYNTHESIZER |
| ICS843101I-312 | 制造商:ICS 制造商全称:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-LVPECL 312.5MHZ FREQUENCY MARGINING SYNTHESIZER |
| ICS843101IAG-100 | 制造商:ICS 制造商全称:ICS 功能描述:FEMTOCLOCKS? CRYSTAL-TO-LVPECL 100MHZ FREQUENCY MARGINING SYNTHESIZER |
| ICS843101IAG-100LF | 制造商:ICS 制造商全称:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-LVPECL 100MHZ FREQUENCY MARGINING SYNTHESIZER |
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