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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： | 5/21页 |
| 文件大小： | 481K |
| 代理商： | ICS84330AY-03 |
84330AY-03
www.icst.com/products/hiperclocks.html
REV. A FEBRUARY 2, 2006
13
Integrated
Circuit
Systems, Inc.
ICS84330-03
700MHZ, LOW JITTER, CRYSTAL-TO-3.3V
DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER
If the FREF_EXT input is driven by a 3.3V LVCMOS driver, the
jitter performance can be improved by reducing the amplitude
swing and slowing down the edge rate. Figure 6A shows an
amplitude reduction approach for a long trace. The swing will
be approximately 0.85V for logic low and 2.5V for logic high
R2
100
VDD
R1
100
Ro ~ 7 Ohm
Driver_LVCMOS
Zo = 50 Ohm
Td
RS
43
VDD
GND
TEST_CLK
VDD
GND
TEST_CLK
R1
200
RS
100
Ro ~ 7 Ohm
Driver_LVCMOS
R2
200
VDD
R1
400
R2
400
Ro ~ 7 Ohm
Driver_LVCMOS
RS
200
VDD
GND
TEST_CLK
JITTER REDUCTION FOR FREF_EXT SINGLE END INPUT
(instead of 0V to 3.3V). Figure 6B shows amplitude reduction
approach for a short trace. The circuit shown in Figure 6C
reduces amplitude swing and also slows down the edge rate
by increasing the resistor value.
FIGURE 6C. EDGE RATE REDUCTION BY INCREASING THE RESISTOR VALUE
FIGURE 6A. AMPLITUDE REDUCTION FOR A LONG TRACE
FIGURE 6B. AMPLITUDE REDUCTION FOR A SHORTTRACE
FREF_EXT
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
13
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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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