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參數(shù)資料
| 型號： | ICS557G-08LF |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 時鐘及定時 |
| 英文描述： | 557 SERIES, LOW SKEW CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO16 |
| 封裝： | 0.173 INCH, ROHS COMPLIANT, TSSOP-16 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大小： | 246K |
| 代理商： | ICS557G-08LF |
ICS557-08
2:1 MULTIPLEXER CHIP FOR PCI-EXPRESS
PCIE MULTIPLEXER
IDT / ICS 2:1 MULTIPLEXER CHIP FOR PCI-EXPRESS
3
ICS557-08
REV E 062607
Application Information
Decoupling Capacitors
As with any high-performance mixed-signal IC, the
ICS557-08 must be isolated from system power supply
noise to perform optimally.
Decoupling capacitors of 0.01F must be connected
between each VDD and the PCB ground plane.
PCB Layout Recommendations
For optimum device performance and lowest output phase
noise, the following guidelines should be observed.
Each 0.01F decoupling capacitor should be mounted on
the component side of the board as close to the VDD pin as
possible. No vias should be used between decoupling
capacitor and VDD pin. The PCB trace to VDD pin should
be kept as short as possible, as should the PCB trace to the
ground via. Distance of the ferrite bead and bulk decoupling
from the device is less critical.
2) An optimum layout is one with all components on the
same side of the board, minimizing vias through other signal
layers (the ferrite bead and bulk decoupling capacitor can be
mounted on the back). Other signal traces should be routed
away from the ICS557-08.
This includes signal traces just underneath the device, or on
layers adjacent to the ground plane layer used by the device.
External Components
A minimum number of external components are required for
proper operation. Decoupling capacitors of 0.01
F should
be connected between VDD and GND pins as close to the
device as possible.
Current Reference Source Rr (Iref)
If board target trace impedance (Z) is 50
, then Rr = 475
(1%), providing IREF of 2.32 mA, output current (IOH) is
equal to 6*IREF.
Load Resistors RL
Since the clock outputs are open source outputs, 50
external resistors to ground are to be connected at each
clock output.
Output Termination
The PCI-Express differential clock outputs of the ICS557-08
are open source drivers and require an external series
resistor and a resistor to ground. These resistor values and
their allowable locations are shown in detail in the
PCI-Express Layout Guidelines section.
The ICS557-08 can also be configured for LVDS compatible
voltage levels. See the LVDS Compatible Layout
Guidelines section.
相關PDF資料 |
PDF描述 |
|---|---|
| ICS557G-08LFT | 557 SERIES, LOW SKEW CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO16 |
| ICS557GI-08T | 557 SERIES, LOW SKEW CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO16 |
| ICS557G-08T-LF | 557 SERIES, LOW SKEW CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO16 |
| ICS557GI-08T | 557 SERIES, LOW SKEW CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO16 |
| ICS557G-08LFT | 557 SERIES, LOW SKEW CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO16 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ICS557G-08LFT | 功能描述:IC MUX 2:1 PCI EXPRESS 16-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:PCI Express® (PCIe) 標準包裝:28 系列:- 類型:時鐘/頻率發(fā)生器 PLL:是 主要目的:Intel CPU 服務器 輸入:時鐘 輸出:LVCMOS 電路數(shù):1 比率 - 輸入:輸出:3:22 差分 - 輸入:輸出:無/是 頻率 - 最大:400MHz 電源電壓:3.135 V ~ 3.465 V 工作溫度:0°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:64-TFSOP （0.240"，6.10mm 寬） 供應商設備封裝:64-TSSOP 包裝:管件 |
| ICS557G-08T | 功能描述:IC MUX 2:1 PCI EXPRESS 16-TSSOP RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:PCI Express® (PCIe) 標準包裝:1,500 系列:- 類型:時鐘緩沖器/驅(qū)動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| ICS557GI-03 | 功能描述:IC CLK SOURCE PCI EXPRSS 16TSSOP RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:PCI Express® (PCIe) 標準包裝:1,500 系列:- 類型:時鐘緩沖器/驅(qū)動器 PLL:是 主要目的:- 輸入:- 輸出:- 電路數(shù):- 比率 - 輸入:輸出:- 差分 - 輸入:輸出:- 頻率 - 最大:- 電源電壓:3.3V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:28-SSOP 包裝:帶卷 (TR) 其它名稱:93786AFT |
| ICS557GI-03LF | 功能描述:IC CLOCK SOURCE PCI 16-TSSOP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:PCI Express® (PCIe) 標準包裝:1 系列:- 類型:時鐘/頻率發(fā)生器，多路復用器 PLL:是 主要目的:存儲器，RDRAM 輸入:晶體 輸出:LVCMOS 電路數(shù):1 比率 - 輸入:輸出:1:2 差分 - 輸入:輸出:無/是 頻率 - 最大:400MHz 電源電壓:3 V ~ 3.6 V 工作溫度:0°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:16-TSSOP 包裝:Digi-Reel® 其它名稱:296-6719-6 |
| ICS557GI-03LFT | 功能描述:IC CLK SOURCE PCI EXPRSS 16TSSOP RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 專用 系列:PCI Express® (PCIe) 標準包裝:28 系列:- 類型:時鐘/頻率發(fā)生器 PLL:是 主要目的:Intel CPU 服務器 輸入:時鐘 輸出:LVCMOS 電路數(shù):1 比率 - 輸入:輸出:3:22 差分 - 輸入:輸出:無/是 頻率 - 最大:400MHz 電源電壓:3.135 V ~ 3.465 V 工作溫度:0°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:64-TFSOP （0.240"，6.10mm 寬） 供應商設備封裝:64-TSSOP 包裝:管件 |
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