- 您现在的位置：买卖IC网 > PDF目录67685 > ICS557G-08LFT 557 SERIES, LOW SKEW CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO16 PDF资料下载
参数资料
| 型号： | ICS557G-08LFT |
| 元件分类： | 时钟及定时 |
| 英文描述： | 557 SERIES, LOW SKEW CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO16 |
| 封装： | 0.173 INCH, ROHS COMPLIANT, TSSOP-16 |
| 文件页数： | 5/11页 |
| 文件大小： | 194K |
| 代理商： | ICS557G-08LFT |
MDS 557-08 C
3
Revision 021606
In te gr ated Circuit Systems ● 525 Ra ce Street, San Jose, CA 9512 6 ● tel (4 08) 297-1 201 ● www.icst.com
ICS557-08
2:1 Multiplexer Chip for PCI-Express
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.
相关PDF资料 |
PDF描述 |
|---|---|
| ICS557MI-01LFT | 100 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO8 |
| ICS570A | 570 SERIES, PLL BASED CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8 |
| ICS570AILF | 570 SERIES, PLL BASED CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8 |
| ICS570MI | 570 SERIES, PLL BASED CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8 |
| ICS570MLF | 570 SERIES, PLL BASED CLOCK DRIVER, 2 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS557G-08T | 功能描述:IC MUX 2:1 PCI EXPRESS 16-TSSOP RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 专用 系列:PCI Express® (PCIe) 标准包装:1,500 系列:- 类型:时钟缓冲器/驱动器 PLL:是 主要目的:- 输入:- 输出:- 电路数:- 比率 - 输入:输出:- 差分 - 输入:输出:- 频率 - 最大:- 电源电压:3.3V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SSOP（0.209"，5.30mm 宽） 供应商设备封装:28-SSOP 包装:带卷 (TR) 其它名称:93786AFT |
| ICS557GI-03 | 功能描述:IC CLK SOURCE PCI EXPRSS 16TSSOP RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 专用 系列:PCI Express® (PCIe) 标准包装:1,500 系列:- 类型:时钟缓冲器/驱动器 PLL:是 主要目的:- 输入:- 输出:- 电路数:- 比率 - 输入:输出:- 差分 - 输入:输出:- 频率 - 最大:- 电源电压:3.3V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SSOP（0.209"，5.30mm 宽） 供应商设备封装:28-SSOP 包装:带卷 (TR) 其它名称:93786AFT |
| ICS557GI-03LF | 功能描述:IC CLOCK SOURCE PCI 16-TSSOP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 专用 系列:PCI Express® (PCIe) 标准包装:1 系列:- 类型:时钟/频率发生器，多路复用器 PLL:是 主要目的:存储器，RDRAM 输入:晶体 输出:LVCMOS 电路数:1 比率 - 输入:输出:1:2 差分 - 输入:输出:无/是 频率 - 最大:400MHz 电源电压:3 V ~ 3.6 V 工作温度:0°C ~ 85°C 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:Digi-Reel® 其它名称:296-6719-6 |
| ICS557GI-03LFT | 功能描述:IC CLK SOURCE PCI EXPRSS 16TSSOP RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 专用 系列:PCI Express® (PCIe) 标准包装:28 系列:- 类型:时钟/频率发生器 PLL:是 主要目的:Intel CPU 服务器 输入:时钟 输出:LVCMOS 电路数:1 比率 - 输入:输出:3:22 差分 - 输入:输出:无/是 频率 - 最大:400MHz 电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 85°C 安装类型:表面贴装 封装/外壳:64-TFSOP （0.240"，6.10mm 宽） 供应商设备封装:64-TSSOP 包装:管件 |
| ICS557GI-03T | 功能描述:IC CLK SOURCE PCI EXPRSS 16TSSOP RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 专用 系列:PCI Express® (PCIe) 标准包装:1,500 系列:- 类型:时钟缓冲器/驱动器 PLL:是 主要目的:- 输入:- 输出:- 电路数:- 比率 - 输入:输出:- 差分 - 输入:输出:- 频率 - 最大:- 电源电压:3.3V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SSOP（0.209"，5.30mm 宽） 供应商设备封装:28-SSOP 包装:带卷 (TR) 其它名称:93786AFT |
发布紧急采购，3分钟左右您将得到回复。