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參數(shù)資料
| 型號： | ICS843034 |
| 英文描述： | MULTI-RATE 3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER |
| 中文描述： | 多速率3.3伏，2.5伏的LVPECL頻率合成器 |
| 文件頁數(shù)： | 20/23頁 |
| 文件大小： | 250K |
| 代理商： | ICS843034 |
843034AY
www.icst.com/products/hiperclocks.html
REV. A JULY 25, 2005
20
Integrated
Circuit
Systems, Inc.
ICS843034
F
EMTO
C
LOCKS
M
ULTI
-R
ATE
3.3V, 2.5V LVPECL F
REQUENCY
S
YNTHESIZER
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 8.
T
o calculate worst case power dissipation into the load, use the following equations which assume a 50
Ω
load, and a termination
voltage of V
CCO
- 2V.
For logic high, V
OUT
= V
OH_MAX
=
V
CCO_MAX
– 0.9V
(V
CCO_MAX
- V
OH_MAX
) =
0.9V
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 - 0.9V)/50
Ω
] * 0.9V =
19.8mW
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
Ω
] * 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 =
30mW
F
IGURE
8. LVPECL D
RIVER
C
IRCUIT
AND
T
ERMINATION
Q1
V
OUT
V
CCO
RL
50
V
CCO
- 2V
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PDF描述 |
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| ICS843034AY | MULTI-RATE 3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER |
| ICS843034AYL | MULTI-RATE 3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER |
| ICS843034AYLF | MULTI-RATE 3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER |
| ICS843034AYLFT | MULTI-RATE 3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER |
| ICS843034AYT | MULTI-RATE 3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS843034-01 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS? MULTI-RATE LVPECL FREQUENCY SYNTHESIZER |
| ICS843034A01 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ MULTI-RATE LVPECL FREQUENCY SYNTHESIZER |
| ICS843034AY | 制造商:ICS 制造商全稱:ICS 功能描述:MULTI-RATE 3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER |
| ICS843034AY-01 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS⑩ MULTI-RATE LVPECL FREQUENCY SYNTHESIZER |
| ICS843034AY-01LF | 功能描述:IC CLK SYNTHESIZER LVPECL 48LQFP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:HiPerClockS™, FemtoClock™ 標(biāo)準包裝:2,000 系列:- 類型:PLL 頻率合成器 PLL:是 輸入:晶體 輸出:時鐘 電路數(shù):1 比率 - 輸入:輸出:1:1 差分 - 輸入:輸出:無/無 頻率 - 最大:1GHz 除法器/乘法器:是/無 電源電壓:4.5 V ~ 5.5 V 工作溫度:-20°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-LSSOP（0.175"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:NJW1504V-TE1-NDNJW1504V-TE1TR |
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