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参数资料
| 型号： | MK1493-03BGLF |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 100 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 封装： | 6.10 MM, 0.50 MM PITCH, ROHS COMPLIANT, TSSOP-48 |
| 文件页数： | 1/19页 |
| 文件大小： | 440K |
| 代理商： | MK1493-03BGLF |
DATASHEET
PCI CLOCK GENERATOR
MK1493-03B
IDT PCI CLOCK GENERATOR
1
MK1493-03B
REV H 051310
Description
The MK1493-03B is a general purpose clock generator
device that provides an integrated clocking solution for PCI
/networking applications. It provides eight individually
programmable PCI clocks, one CPU clock, three additional
fixed PCI clocks, and a 25 MHz reference clock for LAN
support. This part incorporates IDT’s newest clock
technology, offering more robust features and functionality.
The device provides a gradual transition from its initial clock
frequency to the new one. Using a serially programmable
SMBus interface, the MK1493-03B can select the output
clock frequency and the transition from the original value to
the new value. The SMBus also allows each of the 8
programmable PCI clocks to be individually enabled and
disabled.
Features
Individually programmable (25, 33.33, 50, 66.66 MHz)
PCI clocks (Serial or external pin control)
1 CPU clock at 100/125 MHz Selectable; single
ended/differential selectable
1 Clock at 66.66 MHz
1 Clock at 66/71/83 MHz selectable
1 Clock at 50 MHz
25 MHz reference clock
SMBus Programming
Power-up default frequency can be selected through FS
inputs
25 MHz crystal or clock input required
PCICLK cycle to cycle jitter <250 ps
CPUCLK cycle to cycle jitter <150 ps
48-pin, 240 mil TSSOP Package
Operating Voltage 3.3 V
±5%
Commercial (0 to +70°C) and Industrial temperature
ranges (-40 to +85°C)
Block Diagram
PCICLK(0:7)
Each PCI Output Clock
Individually Programmable
Clock Buffer/
Crystal
Ocsillator
PLL
Divider
Buffer Circuits
SMBus Programmable
CPUCLK 100M/125M
X1/CLK
X2
SCLK
CLK66M/71M/83M
FS(0:7)_A
FS(0:7)_B
CLK50M
REF25(25MHz)
SDATA
8
25 MHz
GND
VDD
7
8
External caps required
with crystal for accurate
tuning of the clock
CLK66M
CPUCLKB 100M/125M
FS8
FS9
FS10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MK1493-03BGLFTR | 制造商:IDT 制造商全称:Integrated Device Technology 功能描述:PCI CLOCK GENERATOR |
| MK1493-05G | 功能描述:IC CLK DVR SPRD SPECTRUM 16TSSOP RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 专用 系列:- 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 |
| MK1493-05GILF | 功能描述:时钟驱动器及分配 DIFFERENTIAL SPREAD SPECTRUM CLK DRIVER RoHS:否 制造商:Micrel 乘法/除法因子:1:4 输出类型:Differential 最大输出频率:4.2 GHz 电源电压-最大: 电源电压-最小:5 V 最大工作温度:+ 85 C 封装 / 箱体:SOIC-8 封装:Reel |
| MK1493-05GILFTR | 功能描述:时钟驱动器及分配 DIFFERENTIAL SPREAD SPECTRUM CLK DRIVER RoHS:否 制造商:Micrel 乘法/除法因子:1:4 输出类型:Differential 最大输出频率:4.2 GHz 电源电压-最大: 电源电压-最小:5 V 最大工作温度:+ 85 C 封装 / 箱体:SOIC-8 封装:Reel |
| MK1493-05GLF | 功能描述:时钟驱动器及分配 DIFFERENTIAL SPREAD SPECTRUM CLK DRIVER RoHS:否 制造商:Micrel 乘法/除法因子:1:4 输出类型:Differential 最大输出频率:4.2 GHz 电源电压-最大: 电源电压-最小:5 V 最大工作温度:+ 85 C 封装 / 箱体:SOIC-8 封装:Reel |
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