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参数资料
| 型号： | ICS581G-01ILF |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟及定时 |
| 英文描述： | 581 SERIES, PLL BASED CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO16 |
| 封装： | 4.40 MM, 0.65 MM PITCH, MO-153, TSSOP-16 |
| 文件页数： | 4/9页 |
| 文件大小： | 167K |
| 代理商： | ICS581G-01ILF |
Zero Delay Glitch-Free Clock Multiplexer
MDS 581-01/02 H
4
Revision 050206
Integrated Circuit Systems, Inc.
● 525 Race Street, San Jose, CA 95126 ● tel (408) 297-1201 ● www.icst.com
ICS581-01/02
Note that the clock driving the FBIN pin must not be
tri-stated unless the PLL is powered down. Otherwise
the PLL will run in an open loop.
The ICS581-02 is identical to the ICS581-01 except for
the switching of the input mux. On the ICS581-02, the
switching is automatically controlled by a transition
detector. The transition detector monitors the clock on
INA. If this clock stops, the output of the detector,
NO_INA goes high, which then selects clock input INB
to the mux. The definition of the clock stopping is
determined by a timeout selected by input DIV. If DIV is
low, NO_INA will go high after no transitions have
occurred on INA for nominally three cycles of the clock
on INB. If DIV is high, the timeout is nominally 48
cycles of INB. When INA restarts, the mux immediately
switches back to the INA selection with no timeout.
Input Clock Frequency
The ICS581-01 and ICS581-02 are designed to switch
between two clocks of the same frequency. They will
also operate with different frequencies on each of the
two input clocks. If the two input frequencies require
different input ranges (see table on page two), then the
highest range should be permanently selected. When
the selected input clock is outside this range, jitter and
input skew specifications may not be met. Consult ICS
for more information.
Application Example
A typical application for the ICS581-02 is to provide a backup clock for a system. The backup reliable clock
would be connected to INB while the main clock would be connected to INA. If the main clock failed, the
ICS581-02 would automatically be switched to the backup clock. The following example shows the
connection for this.
In this example, the clocks are 155 MHz and so the frequency range is address 11. Both S0 and S1 are left
unconnected, causing the on-chip pull-ups to produce the required high inputs. The same is true for OE0,
OE1, and DIV. In this example, CLK4 is used as the feedback. Note that the feedback path is before the
series resistor.
CLK3
S0
CLK4
S1
GND
VDD
OE1
INA
INB
GND
FBIN
OE0
DIV
VDD
CLK1
CLK2
VDD
0.01 F
33
0.01 F
MAIN
BACKUP
相关PDF资料 |
PDF描述 |
|---|---|
| ICS581G-02I | 581 SERIES, PLL BASED CLOCK DRIVER, 4 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO16 |
| ICS601M-02IT | 170 MHz, OTHER CLOCK GENERATOR, PDSO16 |
| ICS650R-01ILF | 80 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO20 |
| ICS650R-01LF | 80 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO20 |
| ICS650R-01T | 80 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ICS581G-01ILFT | 功能描述:IC CLK MUX GLITCH FREE 16-TSSOP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:ClockBlocks™ 标准包装:1,000 系列:- 类型:时钟/频率合成器，扇出分配 PLL:- 输入:- 输出:- 电路数:- 比率 - 输入:输出:- 差分 - 输入:输出:- 频率 - 最大:- 除法器/乘法器:- 电源电压:- 工作温度:- 安装类型:表面贴装 封装/外壳:56-VFQFN 裸露焊盘 供应商设备封装:56-VFQFP-EP（8x8） 包装:带卷 (TR) 其它名称:844S012AKI-01LFT |
| ICS581G-01IT | 功能描述:IC CLK MUX GLITCH FREE 16-TSSOP RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:ClockBlocks™ 产品变化通告:Product Discontinuation 04/May/2011 标准包装:96 系列:- 类型:时钟倍频器，零延迟缓冲器 PLL:带旁路 输入:LVTTL 输出:LVTTL 电路数:1 比率 - 输入:输出:1:8 差分 - 输入:输出:无/无 频率 - 最大:133.3MHz 除法器/乘法器:是/无 电源电压:3 V ~ 3.6 V 工作温度:0°C ~ 70°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:管件 其它名称:23S08-5HPGG |
| ICS581G-01LF | 功能描述:IC CLK MUX ZD GLITCHFREE 16TSSOP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:ClockBlocks™ 标准包装:1,000 系列:- 类型:时钟/频率合成器，扇出分配 PLL:- 输入:- 输出:- 电路数:- 比率 - 输入:输出:- 差分 - 输入:输出:- 频率 - 最大:- 除法器/乘法器:- 电源电压:- 工作温度:- 安装类型:表面贴装 封装/外壳:56-VFQFN 裸露焊盘 供应商设备封装:56-VFQFP-EP（8x8） 包装:带卷 (TR) 其它名称:844S012AKI-01LFT |
| ICS581G-01LFT | 功能描述:IC CLK MUX GLITCH FREE 16-TSSOP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:ClockBlocks™ 标准包装:2,000 系列:- 类型:PLL 时钟发生器 PLL:带旁路 输入:LVCMOS，LVPECL 输出:LVCMOS 电路数:1 比率 - 输入:输出:2:11 差分 - 输入:输出:是/无 频率 - 最大:240MHz 除法器/乘法器:是/无 电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:32-LQFP 供应商设备封装:32-TQFP（7x7） 包装:带卷 (TR) |
| ICS581G-01T | 功能描述:IC CLK MUX GLITCH FREE 16-TSSOP RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:ClockBlocks™ 产品变化通告:Product Discontinuation 04/May/2011 标准包装:96 系列:- 类型:时钟倍频器，零延迟缓冲器 PLL:带旁路 输入:LVTTL 输出:LVTTL 电路数:1 比率 - 输入:输出:1:8 差分 - 输入:输出:无/无 频率 - 最大:133.3MHz 除法器/乘法器:是/无 电源电压:3 V ~ 3.6 V 工作温度:0°C ~ 70°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:管件 其它名称:23S08-5HPGG |
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