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參數(shù)資料
| 型號： | MAX9471 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Multiple-Output Clock Generators with Dual PLLs and OTP |
| 中文描述： | 多輸出時鐘發(fā)生器，提供雙PLL和OTP |
| 文件頁數(shù)： | 11/13頁 |
| 文件大小： | 3400K |
| 代理商： | MAX9471 |
M
Multiple-Output Clock Generators with
Dual PLLs and OTP
______________________________________________________________________________________
11
Applications Information
Crystal Selection
When using a crystal with the MAX9471/MAX9472s’
internal oscillator, connect the crystal to X1 and X2.
Choose an AT-cut crystal that oscillates on its funda-
mental mode with ±30ppm and loading capacitance
less than 14pF. To achieve a wide VCXO tuning range,
select a crystal with motional capacitance greater than
7fF and connect 6pF or less shunt capacitors at X1 and
X2 to ground. When the VCXO is used as an oscillator,
select both shunt capacitors to be approximately 13pF.
The optimal shunt capacitors for achieving minimum
frequency offset can be determined experimentally.
Board Layout Considerations and
Bypassing
The MAX9471/MAX9472s’ oscillator frequencies make
proper layout important to ensure stability. For best per-
formance, place components as close as possible to
the device.
Digital or AC transient signals on GND can create noise
at the clock output. Return GND to the highest quality
ground available. Bypass each V
DD
and V
DDA
with a
0.1μF capacitor, placed as close as possible to the
device. Careful PC board ground layout minimizes
crosstalk between the outputs and digital inputs.
Chip Information
PROCESS: CMOS
14
13
12
11
10
9
8
1
2
3
4
5
6
7
X2
V
DD
GND
V
DD
FS0
FS1
X1
TOP VIEW
GND
CLK3
CLK2
CLK1
GND
TUNE
MAX9472
TSSOP
PD
+
Pin Configurations (continued)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX9471ETP | 制造商:Maxim Integrated Products 功能描述:MULTIPLE OUTPUT CLOCK GENERATOR WIT - Rail/Tube |
| MAX9471ETP+ | 功能描述:時鐘發(fā)生器及支持產(chǎn)品 Multiple Output Clock Generator RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MAX9471ETP+T | 功能描述:時鐘發(fā)生器及支持產(chǎn)品 Multiple Output Clock Generator RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
| MAX9471ETP-T | 制造商:Maxim Integrated Products 功能描述:MULTIPLE OUTPUT CLOCK GENERATOR WIT - Tape and Reel |
| MAX9476EUG | 功能描述:時鐘發(fā)生器及支持產(chǎn)品 35.328MHz Clock Synthesizer RoHS:否 制造商:Silicon Labs 類型:Clock Generators 最大輸入頻率:14.318 MHz 最大輸出頻率:166 MHz 輸出端數(shù)量:16 占空比 - 最大:55 % 工作電源電壓:3.3 V 工作電源電流:1 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-56 |
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