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參數(shù)資料
| 型號： | ICS8421004AGIT |
| 英文描述： | FEMTOCLOCKS⑩ CRYSTAL-TO-HSTL FREQUENCY SYNTHESIZER |
| 中文描述： | FEMTOCLOCKS⑩晶體對HSTL頻率合成器 |
| 文件頁數(shù)： | 10/13頁 |
| 文件大小： | 194K |
| 代理商： | ICS8421004AGIT |
8421004AGI
www.icst.com/products/hiperclocks.html
REV. A MARCH 29, 2005
10
Integrated
Circuit
Systems, Inc.
ICS8421004I
F
EMTO
C
LOCKS
C
RYSTAL
-
TO
-
HSTL F
REQUENCY
S
YNTHESIZER
PRELIMINARY
3. Calculations and Equations.
The purpose of this section is to derive the power dissipated into the load.
HSTL output driver circuit and termination are shown in Figure 3.
T
o calculate worst case power dissipation into the load, use the following equations which assume a 50
Ω
load.
Pd_H is power dissipation when the output drives high.
Pd_L is the power dissipation when the output drives low.
Pd_H = (V
OH_MAX
/R
L
) * (V
DD_MAX
- V
OH_MAX
)
Pd_L = (V
OL_MAX
/R
L
) * (V
DD_MAX
- V
OL_MAX
)
Pd_H = (1V/50
Ω
) * (2V - 1V) =
20mW
Pd_L = (0.4V/50
Ω
) * (2V - 0.4V) =
12.8mW
Total Power Dissipation per output pair = Pd_H + Pd_L =
32.8mW
F
IGURE
3. HSTL D
RIVER
C
IRCUIT
AND
T
ERMINATION
V
DDO
V
OUT
RL
50
Ω
Q1
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相關代理商/技術(shù)參數(shù) |
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|---|---|
| ICS8421004I | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-HSTL FREQUENCY SYNTHESIZER |
| ICS8421004I-01 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-HSTL FREQUENCY SYNTHESIZER |
| ICS8422002AGI | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS? CRYSTAL-TO-LVHSTL FREQUENCY SYNTHESIZER |
| ICS8422002AGI-01 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-LVHSTL FREQUENCY SYNTHESIZER |
| ICS8422002AGI-01T | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ CRYSTAL-TO-LVHSTL FREQUENCY SYNTHESIZER |
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