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參數(shù)資料
| 型號(hào)： | ICS84327AMT |
| 英文描述： | Dual retriggerable monostable multivibrators 16-PDIP 0 to 70 |
| 中文描述： | 水晶到3.3的LVPECL頻率合成瓦/多功能扇出緩沖器 |
| 文件頁(yè)數(shù)： | 12/15頁(yè) |
| 文件大?。?/td> | 249K |
| 代理商： | ICS84327AMT |
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84327AM
www.icst.com/products/hiperclocks.html
REV. A SEPTEMBER 18, 2003
12
ICS84327
C
RYSTAL
-
TO
-3.3V LVPECL
F
REQUENCY
S
YNTHESIZER
W
/I
NTEGRATED
F
ANOUT
B
UFFER
PRELIMINARY
3. Calculations and Equations.
The purpose of this section is to derive the power dissipated into the load.
LVPECL output driver circuit and termination are shown in Figure 6.
T
o calculate worst case power dissipation into the load, use the following equations which assume a 50
load, and a termination
voltage of V
CCO
- 2V.
For logic high, V
OUT
= V
OH_MAX
=
V
CCO_MAX
– 1.0V
(V
CCO_MAX
- V
OH_MAX
) =
1.0V
For logic low, V
OUT
= V
OL_MAX
=
V
CCO_MAX
– 1.7V
(V
CCO_MAX
- V
OL_MAX
) =
1.7V
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
–
(V
CCO_MAX
- 2V))/R
[(2V - 1V)/50
] * 1V =
20.0mW
L
] * (V
CCO_MAX
- V
OH_MAX
) = [(2V - (V
CCO_MAX
- V
OH_MAX
))/R
L
] * (V
CCO_MAX
- V
OH_MAX
) =
Pd_L = [(V
OL_MAX
–
(V
CCO_MAX
- 2V))/R
[(2V - 1.7V)/50
] * 1.7V =
10.2mW
L
] * (V
CCO_MAX
- V
OL_MAX
) = [(2V - (V
CCO_MAX
- V
OL_MAX
))/R
L
] * (V
CCO_MAX
- V
OL_MAX
) =
Total Power Dissipation per output pair = Pd_H + Pd_L =
30.2mW
F
IGURE
6. LVPECL D
RIVER
C
IRCUIT
AND
T
ERMINATION
Q1
V
OUT
V
CCO
RL
50
V
CCO
- 2V
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| ICS84329AV | 700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84329AY | 700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
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| ICS84329AVLF | 700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS84329 | 制造商:ICS 制造商全稱:ICS 功能描述:700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84329-01 | 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84329-01B | 制造商:ICS 制造商全稱:ICS 功能描述:700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84329AV | 制造商:ICS 制造商全稱:ICS 功能描述:700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
| ICS84329AVLF | 制造商:ICS 制造商全稱:ICS 功能描述:700MHZ, LOW JITTER, CRYSTAL-TO-3.3V DIFFERENTIAL LVPECL FREQUENCY SYNTHESIZER |
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