参数资料
型号: ICS527R-03LF
厂商: IDT, Integrated Device Technology Inc
文件页数: 3/9页
文件大小: 0K
描述: IC CLK SLICER PECL ZDB 28-SSOP
产品培训模块: Clock Distibution and Generation 1.0
产品变化通告: Product Discontinuation 09/Feb/2012
标准包装: 48
类型: 扇出缓冲器(分配),零延迟缓冲
PLL:
输入: CMOS
输出: PECL
电路数: 1
比率 - 输入:输出: 1:2
差分 - 输入:输出: 无/无
频率 - 最大: 160MHz
除法器/乘法器: 是/是
电源电压: 3.15 V ~ 3.45 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 28-SSOP(0.154",3.90mm 宽)
供应商设备封装: 28-QSOP
包装: 管件
其它名称: 527R-03LF
ICS527-03
CLOCK SLICER USER CONFIGURABLE PECL OUTPUT ZDB
PECL ZDB AND MULTIPLIER/DIVIDER
IDT / ICS CLOCK SLICER USER CONFIGURABLE PECL OUTPUT ZDB 3
ICS527-03
REV E 051310
External Components
Decoupling Capacitors
As with any high performance mixed-signal IC, the
ICS527-03 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. They
must be connected close to the device to minimize lead
inductance.
Series Termination Resistor
Clock output traces over one inch should use series
termination. To series terminate a 50
trace (a
commonly used trace impedance), place a 33
resistor
in series with the clock line, as close to the clock output
pin as possible. The nominal impedance of the clock
output is 20
.
Determining (setting) the ICS527-03
Dividers
The user has full control in setting the desired output
clock over the range shown in the table on page 2. The
user should connect the divider select input pins directly
to ground (or VDD, although this is not required
because of internal pull-ups) during Printed Circuit
Board layout, so the ICS527-03 automatically produces
the correct clock when all components are soldered. It
is also possible to connect the inputs to parallel I/O
ports in order to switch frequencies.
The output of the ICS527-03 can be determined by the
following simple equation:
Where:
Reference Divider Word (RDW) = 0 to 127
Feedback Divider Word (FDW) = 0 to 127
FB Frequency is the same as either CLK1 or
CLK2 depending on feedback connection
Also, the following operating ranges should be
observed:
The output divide should be selected depending on
the frequency of CLK1. The table on page 2 gives
the ranges.
The dividers are expressed as integers. For example, if
a 50 MHz output on CLK1 is desired from a 40 MHz
input, the reference divider word (RDW) should be 2
and the feedback divider word (FDW) should be 3 which
gives the required 5/4 multiplication. If multiple choices
of dividers are available, then the lowest numbers
should be used. In this example, the output divide (OD)
should be selected to be 2. Then R6:R0 is 0000010,
F6:F0 is 0000011 and S1:S0 is 00. Also, this example
assumes CLK1 is connected to FBIN.
If you need assistance determining the optimum divider
settings, please send an e-mail to ics-mk@icst.com
with the desired input clock and the desired output
frequency.
FB Frequency
Input Frequency
FDW
2
+
RDW
2
+
------------------------
×
=
300kHz
Input Frequency
RDW
2
+
-------------------------------------------
20 MHz
<<
相关PDF资料
PDF描述
MS27467T13B98AA CONN HSG PLUG 10POS STRGHT PINS
V28B12M125BL3 CONVERTER MOD DC/DC 12V 125W
MS27474T24B24SA CONN RCPT 24POS JAM NUT W/SCKT
MS27467T19F35BA CONN HSG PLUG 66POS STRGHT SCKT
MS3106F32-2S CONN PLUG 5POS STRAIGHT W/SCKT
相关代理商/技术参数
参数描述
ICS527R-03LFT 功能描述:IC CLK SLICER PECL ZDB 28-SSOP 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:- 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
ICS527R-03T 功能描述:IC CLK SLICER PECL ZDB 28-SSOP 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:- 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
ICS527R-04 功能描述:IC CLK SLICER PECL ZDB 28-SSOP 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:- 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
ICS527R-04LF 功能描述:IC CLK SLICER PECL ZDB 28-SSOP 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:- 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
ICS527R-04LFT 功能描述:IC CLK SLICER PECL ZDB 28-SSOP 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:- 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