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參數(shù)資料
| 型號： | 9DB306BL |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 時鐘及定時 |
| 英文描述： | 9DB SERIES, PLL BASED CLOCK DRIVER, 6 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO28 |
| 封裝： | 4.40 X 9.70 MM, 0.925 MM HEIGHT, TSSOP-28 |
| 文件頁數(shù)： | 4/17頁 |
| 文件大?。?/td> | 268K |
| 代理商： | 9DB306BL |
ICS9DB306BL REVISION C AUGUST 13, 2009
12
2009 Integrated Device Technology, Inc.
ICS9DB306 Data Sheet
PCI EXPRESS JITTER ATTENUATOR
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.
To 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
L
] * (V
CCO_MAX
- V
OH_MAX
) = [(2V - (V
CCO_MAX
- V
OH_MAX
))/R
L
] * (V
CCO_MAX
- V
OH_MAX
) =
[(2V - 0.9V)/50
Ω] * 0.9V = 19.8mW
Pd_L = [(V
OL_MAX
– (V
CCO_MAX
- 2V))/R
L
] * (V
CCO_MAX
- V
OL_MAX
) = [(2V - (V
CCO_MAX
- V
OL_MAX
))/R
L
] * (V
CCO_MAX
- V
OL_MAX
) =
[(2V - 1.7V)/50
Ω] * 1.7V = 10.2mW
Total Power Dissipation per output pair = Pd_H + Pd_L = 30mW
FIGURE 6. LVPECL DRIVER CIRCUIT AND TERMINATION
Q1
V
OUT
V
CCO
RL
50
V
CCO - 2V
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 9DB306BLI | 制造商:Integrated Device Technology Inc 功能描述:ZERO DLY PLL CLOCK BFFR SGL 28TSSOP - Rail/Tube |
| 9DB306BLILF | 功能描述:IC JITTER ATTENUATOR 28-TSSOP 制造商:idt, integrated device technology inc 系列:- 包裝:管件 零件狀態(tài):過期 PLL:是 主要用途:PCI Express（PCIe） 輸入:HCSL，LVDS，LVHSTL，LVPECL，SSTL 輸出:LVPECL 電路數(shù):1 比率 - 輸入:輸出:1：6 差分 - 輸入:輸出:是/是 頻率 - 最大值:140MHz 電壓 - 電源:2.97 V ~ 3.63 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-TSSOP（0.173"，4.40mm 寬） 供應商器件封裝:28-TSSOP 標準包裝:50 |
| 9DB306BLILFT | 功能描述:IC JITTER ATTENUATOR 28-TSSOP 制造商:idt, integrated device technology inc 系列:- 包裝:帶卷（TR） 零件狀態(tài):過期 PLL:是 主要用途:PCI Express（PCIe） 輸入:HCSL，LVDS，LVHSTL，LVPECL，SSTL 輸出:LVPECL 電路數(shù):1 比率 - 輸入:輸出:1：6 差分 - 輸入:輸出:是/是 頻率 - 最大值:140MHz 電壓 - 電源:2.97 V ~ 3.63 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-TSSOP（0.173"，4.40mm 寬） 供應商器件封裝:28-TSSOP 標準包裝:1,000 |
| 9DB306BLIT | 制造商:Integrated Device Technology Inc 功能描述:ZERO DLY PLL CLOCK BFFR SGL 28TSSOP - Rail/Tube |
| 9DB306BLLF | 功能描述:時鐘合成器/抖動清除器 2 LVPECL Output PCI- Express Buffer RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數(shù)量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
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