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參數(shù)資料
| 型號(hào)： | MK1716-01RTR |
| 廠商： | IDT, Integrated Device Technology Inc |
| 文件頁(yè)數(shù)： | 5/9頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC CLK SOURCE SER PROGR 28-QSOP |
| 產(chǎn)品變化通告： | Product Discontinuation 13/May/2009 |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 系列： | VersaClock™ |
| 類型： | 時(shí)鐘/頻率合成器 |
| PLL： | 是 |
| 輸入： | 時(shí)鐘，晶體 |
| 輸出： | CMOS |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 1:9 |
| 差分 - 輸入:輸出： | 無(wú)/無(wú) |
| 頻率 - 最大： | 133.33MHz |
| 除法器/乘法器： | 無(wú)/是 |
| 電源電壓： | 3 V ~ 3.6 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SSOP（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-QSOP |
| 包裝： | 帶卷 (TR) |
MK1716-01
SERIAL PROGRAMMABLE PCI SS VERSACLOCK SYNTHESIZER
SSCG
IDT SERIAL PROGRAMMABLE PCI SS VERSACLOCK SYNTHESIZER
5
MK1716-01
REV H 051310
frequencies. The user may evaluate 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 30-33
kHz. For other applications, a 120 kHz 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 IDT 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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