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参数资料
| 型号： | MK1716R-01LF |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | 133.33 MHz, OTHER CLOCK GENERATOR, PDSO28 |
| 封装： | 0.150 INCH, SSOP-28 |
| 文件页数： | 5/8页 |
| 文件大小： | 119K |
| 代理商： | MK1716R-01LF |
SERIAL PROGRAMMABLE CLOCK WITH SPREAD SPECTRUM
MDS 1716 C
5
Revision 102203
In te gr ated C i rcuit Syste m s ● 525 Race Street, San Jo se, CA 9 512 6 ● tel (4 08) 2 97-12 01 ● www.icst.com
MK1716-01
output accuracy, performance trade-off scenarios in
seconds.
Spread Spectrum Modulation
The MK1716-01 utilizes frequency modulation (FM) to
distribute energy over a range of frequencies. By
modulating the output clock frequencies, the device
effectively lowers energy across a broader range of
frequencies; thus, lowering a system’s
electro-magnetic interference (EMI). The modulation
rate is the time from transitioning from a minimum
frequency to a maximum frequency and then back to
the minimum.
Spread Spectrum Modulation can be applied as either
“center spread” or “down spread”. During center spread
modulation, the deviation from the target frequency is
equal in the positive and negative directions. The
effective average frequency is equal to the target
frequency. In applications where the clock is driving a
component with a maximum frequency rating, down
spread should be applied. In this case, the maximum
frequency, including modulation, is the target
frequency. The effective average frequency is less than
the target frequency.
The MK1716-01 operates in both center spread and
down spread modes. For center spread, the frequency
can be modulated between +/- 0.125% to +/-2.0%. For
down spread, the frequency can be modulated
between -0.25% to -4.0%.
Both output frequency banks will utilize identical spread
spectrum percentage deviations and modulation rates,
if a common VCO frequency can be identified.
Spread Spectrum Modulation Rate
The spread spectrum modulation frequency applied to
the output clock frequency may occur at a variety of
rates. For applications requiring the driving of
“down-circuit” PLLs, Zero Delay Buffers, or those
adhering to PCI standards, the spread spectrum
modulation rate should be set to 30-33kHz. For other
applications, a 120kHz modulation option is available.
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the MK1716-01. These ratings,
which are standard values for ICS commercially rated parts, are stress ratings only. Functional operation of
the device at these or any other conditions above those indicated in the operational sections of the
specifications is not implied. Exposure to absolute maximum rating conditions for extended periods can
affect product reliability. Electrical parameters are guaranteed only over the recommended operating
temperature range.
Parameter
Condition
Min.
Typ.
Max.
Units
Supply Voltage, VDD
Referenced to GND
7
V
Inputs
Referenced to GND
-0.5
VDD + 0.5
V
Clock Outputs
Referenced to GND
-0.5
VDD + 0.5
V
Storage Temperature
-65
150
°C
Soldering Temperature
Max 10 seconds
260
°C
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| MK1725GILF | 功能描述:IC CLK GEN SPRD SPECTRUM 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:- 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 |
| MK1725GILFTR | 功能描述:时钟发生器及支持产品 QUAD OUTPUT SPREAD SPECTRUM CLK GENER. RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56 |
| MK1725GLF | 功能描述:时钟发生器及支持产品 QUAD OUTPUT SPREAD SPECTRUM CLK GENER. RoHS:否 制造商:Silicon Labs 类型:Clock Generators 最大输入频率:14.318 MHz 最大输出频率:166 MHz 输出端数量:16 占空比 - 最大:55 % 工作电源电压:3.3 V 工作电源电流:1 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-56 |
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