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参数资料
| 型号： | ICS84330AY-03 |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 700 MHz, OTHER CLOCK GENERATOR, PQFP32 |
| 封装： | 7 X 7 MM, 1.40 MM HEIGHT, MS-026BBA, LQFP-32 |
| 文件页数： | 4/21页 |
| 文件大小： | 481K |
| 代理商： | ICS84330AY-03 |
84330AY-03
www.icst.com/products/hiperclocks.html
REV. A FEBRUARY 2, 2006
12
Integrated
Circuit
Systems, Inc.
ICS84330-03
700MHZ, LOW JITTER, CRYSTAL-TO-3.3V
DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER
50
40
30
20
10
0
200
300
600
700
400
500
Output Frequency (MHz)
Cyc
le-to-Cyc
le
Jitter
(ps)
N = 1
Spec Limit
LVCMOS TO XTAL INTERFACE
The XTAL_IN input can accept a single-ended LVCMOS
signal through an AC couple capacitor. A general interface
diagram is shown in Figure 4. The XTAL_OUT pin can
be left floating. The input edge rate can be as slow as
10ns. For LVCMOS inputs, it is recommended that the
amplitude be reduced from full swing to half swing in order
to prevent signal interference with the power rail and to
reduce noise. This configuration requires that the output
Figure 4. GENERAL DIAGRAM FOR LVCMOS DRIVER TO XTAL INPUT INTERFACE
impedance of the driver (Ro) plus the series resistance
(Rs) equals the transmission line impedance. In addition,
matched termination at the crystal input will attenuate the
signal in half. This can be done in one of two ways. First,
R1 and R2 in parallel should equal the transmission line
impedance. For most 50
Ω applications, R1 and R2 can be
100
Ω. This can also be accomplished by removing R1 and
making R2 50
Ω.
FIGURE 5. CYCLE-TO-CYCLE JITTER VS. fOUT (using a 16MHz XTAL)
R2
Zo = 50
VDD
Ro
Zo = Ro + Rs
R1
VDD
XTAL_IN
XTAL_OUT
.1uf
Rs
ICS84330-03
700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER
TSD
IDT / ICS 700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER
ICS84330-03
12
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PDF描述 |
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| ICS84330BV | 700 MHz, OTHER CLOCK GENERATOR, PQCC28 |
| ICS84330BVLF | 700 MHz, OTHER CLOCK GENERATOR, PQCC28 |
| ICS84330BY | 700 MHz, OTHER CLOCK GENERATOR, PQFP32 |
| ICS84330CM-01LF | 700 MHz, OTHER CLOCK GENERATOR, PDSO28 |
| ICS84330CVI | 720 MHz, OTHER CLOCK GENERATOR, PQCC28 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS84330AY-03LF | 制造商:ICS 制造商全称:ICS 功能描述:700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84330AY-03LFT | 制造商:ICS 制造商全称:ICS 功能描述:700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84330AY-03T | 制造商:ICS 制造商全称:ICS 功能描述:700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84330BV | 制造商:ICS 制造商全称:ICS 功能描述:700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84330BVT | 制造商:ICS 制造商全称:ICS 功能描述:700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
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